Blog           I learned today that one of my tutoring students actually checks my changelog. Hi! :) 2018-02-16 23:51
Blog           Besides editing cribsheets, I am in the middle of editing an article for a physics education journal 2018-02-16 23:52
Blog           The article went to the publisher this past week! 2018-03-10 23:50
Blog           The article was published: https://doi.org/10.1119/1.5028250 2018-03-24 1:40
Comment   COMMENT       Illustrator can leave edge artifacts on PNGs I need to PhotoShop out 2017-12-14 12:15
Comment Medium COMMENT AP Physics 1 3.3 Spring force It bothers me that some forces are not illustrated, but I'm not using net force to study acceleration 2018-01-04  
Comment   COMMENT AP Physics 1 7.1 Work done by a force The displacement vector looks like a force. That's confusing. 2018-01-04  
Comment Medium COMMENT AP Physics 1 7.2.1 Potential energy It bothers me that some forces are not illustrated, but I'm not using net force to study acceleration 2018-01-04  
Comment   COMMENT AP Physics 1     Comparing cribsheets, I see that some of the force arrows for Fspring are bold (vector), some are Italic (magnitude) 2018-01-04  
Comment   COMMENT (Technical)     bbbbb 2018-01-18 0:52
Comment   COMMENT       Hunch: Was there something on a cribsheet that lacked the subscript "AVG"? 2018-01-29 13:03
Comment   Cosmetic       Image cut off artifact seen in AP Phy C EM E1.3 does not appear in another PDF containing same conductor equilibrating figure in AP Phy 1 2018-02-05 23:36
Comment   COMMENT AP Physics 1 5.2 Not-necessarily-conservation laws Checked there is no overbrace on the extra work term referring to net work 2018-02-07 12:54
Comment   COMMENT AP Physics 1 5.1 Impulse delivered by a force Noticed that the initial pictures don't seem to show acceleration (OK bc force might not have been present before ti) 2018-02-07  
Comment   Cosmetic       In AP Phy 1/C Mech 8.1 look again in a few days at placement of rot. kinematics figure in page 2018-02-12 13:27
Comment   Cosmetic AP Calculus BC 5.1 Series, tests, and remainders Come back in a few days to look at alignment of words in absolute convergence chart 2018-02-14 13:53
Comment   Cosmetic AP Physics     Consider a different convention for dashed bubbles: Tightly shrink-wrapped around system to avoid inadvertently including non-system in bubble 2018-03-09 21:26
COMMENT Medium Cosmetic AP Physics 2 12.8 Capacitors Add voltage braces to energy storage figure (this was already done at some point) 2018-06-04 16:24
Comment Tedious Cosmetic AP Physics 1 10.2 SHM UCM connection Some ghost image springs are missing (there are three snapshot springs) 2018-06-13 23:55
Comment Copy fig Cosmetic AP Physics 1 10.3 SHM cribsheet Some ghost image springs are missing (there are three snapshot springs) 2018-06-13 23:55
Comment   COMMENT       Zoom in styles for electric force, electric field/potential, line integral work, line integral Delta V, residual strong force on several cribsheets inconsistent 2018-06-20 22:13
Comment   Comment AP Physics 1 5.1 Impulse delivered by a force Spacing between initial & final slightly different in impulse & work handouts, not sure either spacing is correct 2018-06-22 2:15
Comment   Comment AP Physics 1 7.1 Work done by a force Spacing between initial & final slightly different in impulse & work handouts, not sure either spacing is correct 2018-06-22 2:15
Comment   Comment AP Physics 1     Consider (during wakefulness): Whether spacings for 5.1 & 7.1 need to be consistent across handouts; are scalings correct within handouts? 2018-06-22 2:19
Comment   COMMENT AP Physics 1     I think one of the figure sets (momentum?) was made first; am I creating vague memories of nudging by dead-reckoning ghost images after nudging a copied figure? 2018-06-22 2:34
Comment   Comment       Recently added imitation old CS6 arrowhead into newer Illustrator arrowhead inventory (can fix SHM-UCM and some rotational arrows soon) 2018-06-25 0:21
Comment   Comment AP Physics 1 8.2 Torque and rotational inertia Complaint: Missing visual indication that force is sustained throughout push in each example case 2018-07-02  
Comment Easy Cosmetic AP Physics 1 11.1 Waves Change lowercase m to uppercase m (for string); CANCELLED: Stay consistent with typesetting in AP exam    
Comment Easy Cosmetic AP Physics 1 11.2 Speed of wave on string Change lowercase m to uppercase m (for string); CANCELLED: Stay consistent with typesetting in AP exam    
Comment   COMMENT AP Physics 1 12.1 Electric charge and force (Also affects Physics C EM): Charging by induction has slight polarization in the third panel, but not the second    
Comment Tedious Missing item AP Physics 1 12.3.1 Electric potential Sign of the test charge in the hand-does-work snapshots seems to be deliberately omitted    
Comment Easy COMMENT AP Physics 1 7.2.1 Potential energy Could add scale to grid for gravitational potential energy, but don't have to    
Comment Medium Cosmetic AP Physics 2 7.2.2 Potential energy landscapes (Also for Physics C Mech): Few days after 2018/06/10, check aesthetics of vertical alignment of Delta v vectors    
Comment Easy Cosmetic AP Physics C EM E1.2 Electric fields and potentials with calculus Intentional?: Unneeded faint line for one of the faint pieces of tofu in the integrate-over-potato-to-get V picture    
Comment Medium Cosmetic AP Physics C Mech A.1 Spatial integrals for AP Physics C Mech Intentional?: Unneeded faint line for one of the faint pieces of tofu in the integrate-over-potato picture    
Comment Tedious Cosmetic       A lot of the calculus cribsheets of kerning errors or hyphens in place of what should be minus signs    
No rush   Comment AP Physics C Mech 8.1 Rotational kinematics and dynamics cribsheet calc Consider whether to delete dL/dt = Net Tau 2018-02-09  
No rush Tedious Cosmetic       In many files, a hyphen has been incorrectly used where a negative or, perhaps, subtraction, sign should have been 2018-03-10 23:50
No rush   Comment   17.1 Quantum physics Pressing CTRL + "+" could have made some text subscripted without being noticed - think it's OK; nudge photon blue dashed arrow ends sometime 2018-06-15 16:05
No rush Tedious Cosmetic AP Calculus AB   (Multiple) Kerning and alignment errors throughout    
No rush Medium Missing item AP Calculus BC 5.1 Series, tests, and remainders Add ghost images of the "left" blocks for integral test (no rush because AP course doesn't really require proofs)    
No rush Tedious Cosmetic AP Calculus BC   (Multiple) Kerning and alignment errors throughout    
No rush Tedious Cosmetic AP Physics 1 4.5 Gravitation Long-term: Redraw hands to touch each other    
No rush Easy Cosmetic AP Physics 1 5.0 Newt 2 can be re-expressed Text in momentum and energy columns misaligned    
No rush Medium Cosmetic AP Physics 1 10.3 SHM Ignoring gravity Adjust vertical alignment of text in tables and corresponding figure parts    
No rush Tedious Cosmetic AP Physics 1 12.1 Electric charge and force Long-term: Redraw hands to touch each other    
No rush Medium Cosmetic AP Physics 1 12.4 Current A few days after 2018/05/24, check nudging/spacing of table of current formulas    
No rush Tedious Beyond scope AP Physics 1 12.4 Current Increase accuracy of battery diagram (necessary to illustrate a redox reaction?)    
No rush Medium Cosmetic AP Physics 1 7.2.1 Potential energy Add force arrows on stationary "ends" (Earth, wall)    
No rush Easy Cosmetic AP Physics 1   (Multiple) Remove most of the SiQuENC sheets    
No rush Tedious Cosmetic AP Physics 2 12.8 Capacitors Fine sizing (not just set figures all to 16.25%) - probably not isolated problem    
No rush Tedious Missing item AP Physics 2 13.1 Magnetism Figures don't illustrate relationships between variables using multiple cases (less detail than Coulomb's law cases figs)    
No rush Tedious Missing item AP Physics 2 14.1 Electromagnetism Add a magnetic field line conserving argument for Lenz    
No rush Tedious Cosmetic AP Physics C EM E1.1 Electric charge and force Long-term: Redraw hands to touch each other    
No rush Tedious Missing item AP Physics C EM E1.2 Electric fields and potentials with calculus Other representative differential displacements and local E vectors missing from 1st picture of path (annoying to calculate individual E vectors)    
No rush Tedious Cosmetic AP Physics C EM E1.5 Capacitors Fine sizing (not just set figures all to 16.25%) - probably not isolated problem    
No rush Medium Cosmetic AP Physics C EM E2.1.1 Current A few days after 2018/05/24, check nudging/spacing of table of current formulas    
No rush Tedious Beyond scope AP Physics C EM E2.1.1 Current Increase accuracy of battery diagram (necessary to illustrate a redox reaction?)    
No rush Copy figs Missing item AP Physics C EM N1.1 Electromagnetism Add a magnetic field line conserving argument for Lenz    
No rush Easy Cosmetic AP Physics C Mech 7.1.2 Work done along a path (Postponed) Label point P on diagram and update steps list accordingly    
Queued Tedious Missing item AP Physics 1 5.5 Opt momentum transfer Add velocity vectors, momentum bar chart, & modify opacities on whooshies and explosions    
Queued Medium Cosmetic AP Physics 1 8.1 Rotational kinematics and dynamics cribsheet Ang mom figure: Move velocity label; check nudging of ang. mom figure in page    
Queued Easy Cosmetic AP Physics 1 8.1 Rotational kinematics and dynamics cribsheet Change order in which torque, Newt II of rotational motion, and rotational inertia are listed    
Queued Tedious Cosmetic AP Physics 1 8.2 Torque and rotational inertia In a few days after 2018/04/11, check perspective on big angular acceleration arc    
Queued Tedious Missing item AP Physics 1 10.2 SHM cribsheet Cases: vary m, vary k (IBL)    
Queued Tedious Cosmetic AP Physics 1 10.5 Resonance Adjust thicknesses in FBDs for block mass    
Queued Medium Missing item AP Physics 1 11.1 Waves Add a bubble to a representative wall molecule in standing wave diagram; add FBD to explain inversion    
Queued Medium Cosmetic AP Physics 1 11.1 Waves Ghost images and whooshies for resultant wave are missing    
Queued Easy Cosmetic AP Physics 1 12.1 Electric charge and force Change document raster setting to 300 ppi (not 72 ppi)    
Queued Tedious Cosmetic AP Physics 1 12.1 Electric charge and force Coulomb cases: Hyphen to minus, final page: Hyphen to minus    
Queued Tedious Cosmetic AP Physics 1 12.4 Current KLR: Background charge icon: Hyphen to minus    
Queued Medium Cosmetic AP Physics 1 12.5 DC (equilibrated) operation Were current variable labels deliberately omitted in the bottom two figures to avoid asserting equality with original I?    
Queued Tedious Cosmetic AP Physics 1 12.3.1 Electric potential Background charge icon: Hyphen to minus    
Queued Tedious Missing item AP Physics 1 12.3.1 Electric potential Equilibration of conductor: Energy bar chart showing easiness of easy path    
Queued Tedious Missing item AP Physics 1 12.3.1 Electric potential Equilibration of conductor: Show force vectors (on repelled electrons fleeing away)    
Queued Medium Missing item AP Physics 1 12.3.1 Electric potential Some representation that the equilibrated potato is an equipotential set    
Queued Tedious Missing item AP Physics 2 7.5 Fluid mechanics Bernoulli: Add energy & energy-density bar charts (superificially same) (MR); dashed bubble; label Delta ells and "middle region" so energy equation will make sense    
Queued Medium Cosmetic AP Physics 2 12.8 Capacitors Adjust alignment of right ends of electric field lines in work-done-charging-capacitor figure    
Queued Tedious Cosmetic AP Physics 2 12.8 Capacitors Change dipole hyphens to minuses    
Queued Medium Cosmetic AP Physics 2 12.8 Capacitors Work-done-charging: Remove tubes, add more ghost images, add hand    
Queued Medium Missing item AP Physics 2 15.1 Physical (wave) optics Add a bubble to a representative wall molecule in wave reflection diagrams; add FBD to explain inversion    
Queued Medium Cosmetic AP Physics 2 15.1 Physical (wave) optics In EM wave figure, label polarization    
Queued Copy fig Cosmetic AP Physics 2 17.1 Quantum physics In EM wave figure, label polarization    
Queued Tedious Missing item AP Physics 2 18.1 Thermo second law Add page on iso[insertnameofquantity] processes & graphical representations; cannot go earlier bc mention adiabatic    
Queued Tedious Cosmetic AP Physics 2 12.3.2 Electric fields and potentials Background charge icon: Hyphen to minus    
Queued Tedious Missing item AP Physics 2 17.2.1 Special relativity add E = sqrt(m^2c^4 + p^2c^2) relationship    
Queued Tedious Missing item AP Physics 2 7.2.2 Potential energy landscapes Isolines figure: Make a hand with FBD; show Delta l parallel, show energy bar chart; show v = 0 (MR)    
Queued Copy Cosmetic AP Physics C EM E1.1 Electric charge and force Copy from AP Physics 1 after fixing raster setting    
Queued Copy Cosmetic AP Physics C EM E1.1 Electric charge and force Coulomb cases: Hyphen to minus, final page: Hyphen to minus    
Queued Tedious Cosmetic AP Physics C EM E1.2 Electric fields and potentials with calculus Background charge icon: Hyphen to minus (also on second page in two places)    
Queued Copy fig Missing item AP Physics C EM E1.3 Conductors near equilibrium Equilibration of conductor: Energy bar chart showing easiness of easy path    
Queued Copy fig Missing item AP Physics C EM E1.3 Conductors near equilibrium Equilibration of conductor: Show force vectors (on repelled electrons fleeing away)    
Queued Copy fig Missing item AP Physics C EM E1.3 Conductors near equilibrium Some representation that the equilibrated potato is an equipotential set    
Queued Tedious Cosmetic AP Physics C EM E1.4 Gauss's Law Source charge icon: Hyphen to minus    
Queued Copy Cosmetic AP Physics C EM E1.5 Capacitors Copy updated file after making lots of changes to AP Physics 2 copy of capacitors sheet    
Queued Tedious Cosmetic AP Physics C EM E2.1.1 Current KLR: Background charge icon: Hyphen to minus    
Queued Tedious Missing item AP Physics C EM M1.1 Magnetism with calculus Illustrate various dB generated by various differential current elements (MR)    
Queued Copy fig Cosmetic AP Physics C EM N2.1 Maxwell's equations In EM wave figure, label polarization    
Queued Medium Cosmetic AP Physics C Mech 8.1 Rotational kinematics and dynamics cribsheet calc Ang mom figure: Move velocity label    
Queued Copy fig Missing item AP Physics C Mech 7.2.2 Potential energy landscapes calc Isolines figure: Make a hand with FBD; show Delta l parallel, show energy bar chart; show v = 0 (MR)    
Queued Tedious Missing item Classical Mechanics 1.1 Euler-Lagrange cribsheet Create cribsheet, illustrate with discretized example motivating Euler-Lagrange equation    
Queued Medium Missing item Make and solve physics T.0 SiQuENC for AP Physics Add bank of "allowed sentences" for qualitative reasoning    
Queued Medium Missing item Make and solve physics T.0 SiQuENC for AP Physics Add stick figures to visualized deductive reasoning example    
Queued Tedious Missing item Make and solve physics     Multiple-choice/multi-select problem type inventory    
Queued Tedious Missing item Quantum mechanics   Decoherence Create cribsheet    
Released   SYNC (Master folder)       2019-12-13 1:35
Released           Restarted changelog (previous changes in changelog-20191213) 2019-12-13 1:42
Released   SYNC (Master folder)       2019-12-13 1:43
Released Easy Cosmetic AP Calculus AB 4.3 Using integrals for volumes Adjusted line spacings in text/formulas 2019-12-13 23:39
Released Easy Cosmetic AP Calculus AB 4.2 Using integrals for areas Added non-standard outer glow behind label f_AVG in f_AVG figure (make appearance more consistent with appearance of fİ) 2019-12-13 23:43
Released Medium Cosmetic AP Physics 2 12.8 Capacitors Draft: Capacitor charging: Dashed bubble around first snapshot, added hand ghost images with streaks to all 3 snapshots 2019-12-14 0:16
Released Copy Cosmetic AP Physics C EM E1.5 Capacitors Draft: Capacitor charging: Dashed bubble around first snapshot, added hand ghost images with streaks to all 3 snapshots 2019-12-14 0:18
Released   SYNC (Master folder)       2019-12-14 0:45
Released Copy Cosmetic AP Physics C EM E1.5 Capacitors Draft: Slightly modify curved whooshy for all 3 copies of thumb for capacitor charging figure, made dashed bubble go all the way to background 2019-12-15 0:00
Released Easy Cosmetic AP Physics 1 5.1 Impulse delivered by a force Area under Fx vs. t graph: Subscript F_1,x changed to F_x,1, in text replaced index i with index k 2019-12-15 13:31
Released Copy Cosmetic AP Physics C Mech 5.1 Impulse delivered by a force Area under Fx vs. t graph: Subscript F_1,x changed to F_x,1, in text replaced index i with index k 2019-12-15 13:33
Released Easy Cosmetic AP Physics 1 7.1 Work done by a force Work done by a varying force: In text subscript index i changed to subscript index k 2019-12-15 23:36
Released Copy Cosmetic AP Physics C Mech 7.1 Work done by a force Work done by a varying force: In text subscript index i changed to subscript index k 2019-12-15 23:38
Released Easy Cosmetic AP Calculus AB 2.4 Extrema Changed intro to closed interval method to include phrase "Candidates test for", deleted colon 2019-12-15 23:41
Released Easy Cosmetic AP Physics 2 12.8 Capacitors Draft: Slightly modify curved whooshy for all 3 copies of thumb for capacitor charging figure, made dashed bubble go all the way to background 2019-12-15 23:58
Released Easy Cosmetic AP Physics 1 5.1 Impulse delivered by a force F-t graph: redid glow on Delta t 2019-12-17 0:42
Released Copy Cosmetic AP Physics C Mech 5.1 Impulse delivered by a force F-t graph: redid glow on Delta t 2019-12-17 0:44
Released Easy Cosmetic AP Physics 1 7.1 Work done by a force F-ell graph: redid glow on Delta ell 2019-12-17 0:49
Released Copy Cosmetic AP Physics C Mech 7.1 Work done by a force F-ell graph: redid glow on Delta ell 2019-12-17 0:54
Released Easy Cosmetic AP Physics 1 7.1 Work done by a force F-ell graph page: Added missing period at end of text 2019-12-17 1:10
Released Copy Cosmetic AP Physics C Mech 7.1 Work done by a force F-ell graph page: Added missing period at end of text 2019-12-17 1:12
Released Easy Cosmetic AP Physics 1 8.1 Rotational kinematics and dynamics cribsheet (APP1) Removed subscript "F" from formula for work done by a torque 2019-12-17 1:17
Released Easy Cosmetic AP Physics C Mech 8.1 Rotational kinematics and dynamics cribsheet calc (APPC) Removed subscript "F" from formula for work done by a torque 2019-12-17 1:23
Released Easy Cosmetic error AP Physics 1 5.1 Impulse delivered by a force F-t graph page: Summation lower bound index changed from i to k 2019-12-17 15:39
Released Copy Cosmetic error AP Physics C Mech 5.1 Impulse delivered by a force F-t graph page: Summation lower bound index changed from i to k 2019-12-17 15:40
Released Easy Cosmetic error AP Physics 1 7.1 Work done by a force Fparallel-ell graph page: Summation lower bound inex changed from i to k 2019-12-17 15:43
Released Copy Cosmetic error AP Physics C Mech 7.1 Work done by a force Fparallel-ell graph page: Summation lower bound inex changed from i to k 2019-12-17 15:45
Released Medium Missing item AP Physics 1 8.1.2 Accruing effects of varying torques DRAFT: Created chart to compare linear impulse and angular impulse and to compare work done by a force and work done by a torque 2019-12-17 15:59
Released Copy Missing item AP Physics C Mech 8.1.2 Accruing effects of varying torques DRAFT: Created chart to compare linear impulse and angular impulse and to compare work done by a force and work done by a torque 2019-12-17 16:00
Released   SYNC (Master folder)       2019-12-17 16:01
Released Easy Small missing item AP Physics 1 8.1 Rotational kinematics and dynamics cribsheet (APP1) Added faint corkscrew to subscript of omega_AVG (omega_corkscrew,AVG); removed "Definitions | Relationships" row in kinematics 2019-12-20 20:53
Released Easy Small missing item AP Physics C Mech 8.1 Rotational kinematics and dynamics cribsheet calc (APPC) Added faint corkscrew to subscript of omega (omega_corkscrew); removed "Definitions | Relationships" row in kinematics 2019-12-20 20:56
Released   SYNC (Master folder)       2019-12-20 20:58
Released Easy Cosmetic AP Calculus AB 3.1 Definite integrals and area Changed title from 'Definite integral formalizes notion of area under curve' to 'Definite integral formalizes notion of signed area "under" curve' 2019-12-21 0:31
Released Easy Cosmetic AP Physics 1 5.1 Impulse delivered by a force Changed title to mention "object" 2019-12-21 0:40
Released Copy Cosmetic AP Physics C Mech 5.1 Impulse delivered by a force Changed title to mention "object" 2019-12-21 0:41
Released Easy Cosmetic AP Physics 1 7.1 Work done by a force Changed title to mention "object" 2019-12-21 0:43
Released Copy Cosmetic AP Physics C Mech 7.1 Work done by a force Changed title to mention "object" 2019-12-21 0:44
Released   SYNC (Master folder)       2019-12-21 0:45
Released Easy Small error AP Calculus AB 4.3 Using integrals for volumes Volume of solid of revolution: Updated text about exchanging x and y, added optional text referring to labeling corners of slice, grayed text related to swapping x and y 2019-12-24 10:25
Released Easy Cosmetic AP Calculus BC 4.6 Arc lengths and surfaces of revolution Small updates to text instructions for setting up surface of revolution problems 2019-12-24 10:34
Released Easy Small missing item AP Calculus BC 3.6 Integration by parts Added figure panels for/based on product rule for derivatives, added derivation in terms of f and g rectangular areas 2019-12-24 12:51
Released Easy Cosmetic AP Calculus AB 3.1 Definite integrals and area Limiting process: Last panel: Moved Delta x arrow to different rectangle, added f(x_i^*) arrow/label 2019-12-24 18:59
Released Easy Cosmetic AP Physics 1 7.2.1 Potential energy Draft: p. 2 Putative conserved quantity situations figure: Adjusted dashed bubble shape 2019-12-24 19:32
Released Copy Cosmetic AP Physics C Mech 7.2.1 Potential energy Draft: p. 2 Putative conserved quantity situations figure: Adjusted dashed bubble shape 2019-12-24 19:33
Released Easy Cosmetic AP Calculus AB 2.1 Derivatives Product rule 3d figure: Removed small foreground portion of graph of y = g(x) 2019-12-25 18:59
Released Copy fig Cosmetic AP Calculus BC 3.6 Integration by parts Product rule 3d figure: Removed small foreground portion of graph of y = g(x) (give more leeway for integration figure to possibly be scaled correctly) 2019-12-25 19:01
Released Easy Cosmetic AP Physics C EM E1.4 Gauss's Law Electric flux: E-vector label hor. centered then shifted 2 px left 2019-12-25 19:36
Released Easy Cosmetic AP Physics 2 14.1 Electromagnetism Magnetic flux: B-vector label hor. centered then shifted 2 px left 2019-12-25 19:40
Released Copy fig Cosmetic AP Physics C EM N1.1 Electromagnetism Magnetic flux: B-vector label hor. centered then shifted 2 px left 2019-12-25 19:44
Released   SYNC (Master folder)       2019-12-25 19:46
Released Easy Cosmetic AP Physics 1 12.4 Current Updated KLR text 2019-12-26 21:49
Released Easy Cosmetic AP Physics C EM E2.1.1 Current Updated KLR text, updated I-in-terms-of-charge-carriers formula (underbrace for I), updated formatting of |P| = |d(QDeltaV)/dt| 2019-12-26 21:50
Released Easy Cosmetic AP Physics 1 4.5 Gravitation Both common-separation r double-headed arrows in right column: shift down 20 px to avoid almost touching dashed bubble at top 2019-12-27 23:52
Released Copy Cosmetic AP Physics C Mech 4.5 Gravitation Both common-separation r double-headed arrows in right column: shift down 20 px to avoid almost touching dashed bubble at top 2019-12-27 23:53
Released Medium Missing item AP Physics 1 12.4 Current Draft: Added phrase "Definition of resistance", resistor expressions rearranged, Electric power: Added dashed bubble around system, added energy bar chart, reformatted to use more of page 2019-12-28 2:24
Released Tedious Missing item AP Physics C EM E2.1.1 Current Draft: Added drift velocity starburst diagram, Added phrase "Definition of resistance", resistor expressions rearranged, Electric power: Added dashed bubble around system, added energy bar chart, reformatted to use more of page 2019-12-28 2:25
Released   SYNC (Master folder)       2019-12-28 2:28
Released Easy Cosmetic AP Physics 1 5.2 Not-necessarily-conservation laws Equation for impulse-momentum: changed EXT ON SYS to EXT\rightarrowSYS 2019-12-28 23:58
Released Copy Cosmetic AP Physics C Mech 5.2 Not-necessarily-conservation laws Equation for impulse-momentum: changed EXT ON SYS to EXT\rightarrowSYS 2019-12-28 23:59
Released Easy Cosmetic AP Physics C EM E2.3.1 Mnemonic for exponential decays Changed subscript for y_{max} to y_{MAX} 2019-12-29 0:02
Released Easy Cosmetic AP Physics C EM E2.3.1 RC Charging Changed title to indicate charging occurring, changed CsquiggleE - Q \geq 0 to CsquiggleE - Q > 0 2019-12-29 0:05
Released Easy Cosmetic AP Physics C EM N1.3 LR Increasing current Changed title to indicate increasing current occurring 2019-12-29 0:07
Released   SYNC (Master folder)       2019-12-29 0:09
Released Easy Cosmetic AP Physics C EM E2.3 RC Charging Adjusted some line spacings (to improve table in midde column) 2019-12-29 11:37
Released Easy Cosmetic AP Physics C EM N1.3 LR Increasing current Adjusted some line spacings (to improve table in midde column) 2019-12-29 11:40
Released Easy Cosmetic AP Physics 1 5.2 Not-necessarily-conservation laws Added trailing whooshies/streaks to spring portions of "object 1" in all snapshots 2019-12-29 11:55
Released Copy Cosmetic AP Physics C Mech 5.2 Not-necessarily-conservation laws Added trailing whooshies/streaks to spring portions of "object 1" in all snapshots 2019-12-29 11:56
Released Easy Cosmetic AP Physics C EM M1.3 Solenoids Adjusted spacing above and below solenoid figures 2019-12-29 19:24
Released Easy Cosmetic AP Physics 2 13.1 Magnetism Biot-Savart figure 2nd panel: shift 2px up: rvector labels for horizontal rvectors 2019-12-30 22:51
Released Easy Cosmetic AP Physics C EM M1.1 Magnetism Biot-Savart figure 2nd panel: shift 2px up: rvector labels for horizontal rvectors 2019-12-30 22:53
Released Easy Cosmetic AP Physics 1 5.0 Newt 2 can be re-expressed 3-panel two-object collision figure: Added whooshies to spring 2019-12-30 23:05
Released Copy Cosmetic AP Physics C Mech 5.0 Newt 2 can be re-expressed 3-panel two-object collision figure: Added whooshies to spring 2019-12-30 23:06
Released Easy Cosmetic AP Physics 1 12.4 Current Both resistor figures: Changed current arrow capstyle from round to square 2019-12-31 12:30
Released Medium Missing item AP Physics C EM E2.1.1 Current Both resistor figures: Changed current arrow capstyle from round to square, moved E-field label; 1st resistor figure: Added blue morsel of length vd Delta t, representative fakely-straight-line-drifting electrons 2019-12-31 13:12
Released Easy Cosmetic AP Physics 2 7.5 Fluid mechanics Adopted uglier layering style of blue and black outlines near cylindrical morsels to be consistent with blue morsel in E2.1.1 2019-12-31 13:29
Released Tedious Cosmetic AP Physics C EM M1.1 Magnetism with calculus Small layering/dashed outline styling type edits, including making blue morsel layerings more consistent with E2.1.1 style 2019-12-31 16:08
Released Tedious Cosmetic AP Physics 2 13.1 Magnetism Small layering/dashed outline styling type edits, including making blue morsel layerings more consistent with E2.1.1 style 2019-12-31 16:11
Released   SYNC (Master folder)       2019-12-31 16:13
Released Easy Cosmetic AP Physics 2 7.5 Fluid mechanics Failed draft: Continuity & Bernoulli: made horizontalish whooshies actually horizontal (they were ~0.01px tall); subsequent observation suggests AI probably rejected a lot of these edits 2020-01-01 15:04
Released Easy Cosmetic AP Physics 1 2.2.3 Resolve vector components using trigonometry Without triangles panel: Nudged one of the horizontal whooshies 2020-01-01 15:29
Released Copy Cosmetic AP Physics C Mech 2.2.3 Resolve vector components using trigonometry Without triangles panel: Nudged one of the horizontal whooshies 2020-01-01 15:30
Released Tedious Missing item AP Physics 1 12.4 Current Draft: Redid last page (electric power) more carefully deriving P = I Delta V by focusing on energy changes for small parcels of charge, mentioned hands in subscript of work in energy bar chart 2020-01-01 16:39
Released Copy pg. 3 of 3 Missing item AP Physics C EM E2.1.1 Current Draft: Redid last page (electric power) more carefully deriving P = I Delta V by focusing on energy changes for small parcels of charge, mentioned hands in subscript of work in energy bar chart 2020-01-01 16:42
Released   SYNC (Master folder)       2020-01-01 16:44
Released Easy Cosmetic AP Physics 1 12.4 Current Electric power situation: Moved plates of charge at left and right outward (so as not to sit on equipotential lines), added lattice of faint positive charges, added shadows to conduction electrons, edited electric circuit device energy bar chart 2020-01-01 22:22
Released Copy figs Cosmetic AP Physics C EM E2.1.1 Current Electric power situation: Moved plates of charge at left and right outward (so as not to sit on equipotential lines), added lattice of faint positive charges, added shadows to conduction electrons, edited electric circuit device energy bar chart 2020-01-01 22:24
Released   SYNC (Master folder)       2020-01-01 22:25
Released Easy Missing item AP Physics C Mech 0.0 AP Physics C Mechanics outline SHM: Added listing for 2009 FRQ M2 2020-01-02 12:48
Released Easy Cosmetic AP Physics 1 10.3 SHM cribsheet mass-spring FBD: Changed congruent hash cap style round->square; ideal pendulum: changed tension label T -> F_T 2020-01-05 19:49
Released Copy Cosmetic AP Physics C Mech 10.3 SHM cribsheet mass-spring FBD: Changed congruent hash cap style round->square; ideal pendulum: changed tension label T -> F_T 2020-01-05 19:50
Released Copy fig Cosmetic AP Physics 1 10.2 SHM UCM connection mass-spring FBD: Changed congruent hash cap style round->square 2020-01-05 19:51
Released Copy Cosmetic AP Physics C Mech 10.2 SHM UCM connection mass-spring FBD: Changed congruent hash cap style round->square 2020-01-05 19:53
Released Easy Cosmetic AP Physics 1 10.1 SHM Graphs Adjusted some whooshy lengths on comic strip snapshots 2020-01-06 0:18
Released Copy Cosmetic AP Physics C Mech 10.1 SHM Graphs Adjusted some whooshy lengths on comic strip snapshots 2020-01-06 0:20
Released Medium Cosmetic AP Physics 1 10.5 Resonance Adjusted some whooshy lengths on comic strip snapshots 2020-01-06 0:28
Released Copy Cosmetic AP Physics C Mech 10.5 Resonance Adjusted some whooshy lengths on comic strip snapshots 2020-01-06 0:29
Released   SYNC (Master folder)       2020-01-06 0:31
Released Easy Cosmetic AP Physics 1 12.4 Current Current: I arrow end cap style round->square; KJR: I arrows end cap styles: round->square 2020-01-06 12:17
Released Medium Cosmetic (and small error) AP Physics C EM E2.1.1 Current Current: I arrow end cap style round->square, changed area notation to Avector with perpendicular arrow, edited J formula to read dI = Jvect dot dAvect, KJR: I arrows end cap styles: round->square 2020-01-06 12:27
Released Easy Cosmetic AP Physics 1 8.x (Multiple) Renumbered handouts (both PDFs and source DOCXs): previous 8.4->now 8.3, previous 8.1.2->now 8.4 2020-01-06 14:14
Released Easy Cosmetic AP Physics C Mech 8.x (Multiple) Renumbered handouts (PDFs): previous 8.4->now 8.3, previous 8.1.2->now 8.4 2020-01-06 14:19
Released   SYNC (Master folder)       2020-01-06 14:21
Released Medium Small missing item AP Physics 2 15.4 Reflections and thin-film interference Draft: Reflection at boundary figures: Added very faint future just-reach-boundary snapshots (with gradient stroke opacity) and N3L tension force pairs, one of the panels needed whooshy end cap styles changed round->square 2020-01-07 0:05
Released Easy Cosmetic AP Physics 1 11.1 Waves Standing wave comic strip: 1st panel: relabled tension forces in F_T style instead of T style 2020-01-07 0:09
Released   SYNC (Master folder)       2020-01-07 0:11
Released Tedious Cosmetic AP Calculus AB 2.7 Curve sketching Redid layout for 14.875"x11", added case table for 1st derivative test 2020-01-08 2:51
Released Medium Cosmetic AP Physics C EM E1.4 Gauss's Law Both figures restyled endcaps of some line segments round->square; did some nudging in electric flux figure 2020-01-08 12:54
Released Easy Cosmetic AP Physics C EM E2.1.1 Current 1st figure (current, J): area vector line segment end caps: round end caps became square, small nudge/alignment 2020-01-08 12:58
Released Medium Cosmetic AP Physics C EM E1.2 Electric fields and potentials with calculus pg. 1 E/V definitions figure: A bunch of line endcap style edits round->square; for dashed distance measurements changed from 8 pt dash 24 pt gap round end caps to 18 pt dash 14 pt gap square end caps 2020-01-08 13:10
Released Copy fig Cosmetic AP Physics 2 12.3.2 Electric fields and potentials pg. 1 E/V definitions figure: A bunch of line endcap style edits round->square; for dashed distance measurements changed from 8 pt dash 24 pt gap round end caps to 18 pt dash 14 pt gap square end caps 2020-01-08 13:13
Released Easy Error AP Physics 1 8.4 Accruing effects of varying torques Angular impulse eqn.: Put sum_k around \Delta t in what was originally \tau_AVG \Delta t, reduced figure sizes 2020-01-08 14:10
Released Copy Error AP Physics C Mech 8.4 Accruing effects of varying torques Angular impulse eqn.: Put sum_k around \Delta t in what was originally \tau_AVG \Delta t, reduced figure sizes 2020-01-08 14:12
Released   SYNC (Master folder)       2020-01-08 14:13
Released Medium Cosmetic AP Physics C EM E1.4 Gauss's Law Electric flux panels: Various slight re-alignment translations and rotations 2020-01-08 23:00
Released Medium Cosmetic AP Physics 2 14.1 Electromagnetism Magnetic flux panels: Various slight re-alignment translations and rotations 2020-01-08 23:17
Released Copy fig & modify Cosmetic AP Physics C EM E1.4 Gauss's Law Electric flux panels: Inherit additional small re-alignments made for 14.1 2020-01-08 23:19
Released Medium & Copy fig Cosmetic AP Physics C EM N1.1 Electromagnetism Copied magnetic flux panels figure, cosmetically edited magnetic flux potato figure (endcaps style: round->square, adjusted empty spaces near piercings, rotationally nudged some piercings 2020-01-08 23:37
Released Easy Cosmetic AP Physics 1 5.3 Parallels momentum energy (APP1) Reformatted x- and y-impulse as signed area under Fx vs. t and Fy vs. t graph equations 2020-01-09 17:55
Released Easy Cosmetic AP Calculus AB 2.7 Curve sketching On sign charts removed parentheses surrounding + and - symbols 2020-01-10 1:55
Released Easy Cosmetic AP Physics C Mech 7.2.4 Inverse-square fields have inverse-r potentials Electric potential figure: Changed q_{SRC} to q 2020-01-10 2:04
Released Copy Cosmetic AP Physics C EM E1.2.2 Inverse-square fields have inverse-r potentials Electric potential figure: Changed q_{SRC} to q 2020-01-10 2:06
Released Easy Cosmetic AP Physics 1 5.2 Not-necessarily-constant sums Changed filename 2020-01-10 14:08
Released Copy Cosmetic AP Physics C Mech 5.2 Not-necessarily-constant sums Changed filename 2020-01-10 14:09
Released Easy Cosmetic AP Physics 1 8.5 Rotational not-necessarily-constant sums Changed filename 2020-01-10 14:10
Released Copy Cosmetic AP Physics C Mech 8.5 Rotational not-necessarily-constant sums Changed filename 2020-01-10 14:11
Released Medium Small missing items AP Calculus AB 2.7 Curve sketching Added "Sign" and "Behav. of" labels on sign charts, vertically stretched layout of sign charts diagram 2020-01-10 23:15
Released Medium Small missing items AP Calculus AB 2.6 Derivative tests Added conditions/sentences in terms of f' for concavity, added note for Stewart poi definition that there is implied continuity 2020-01-10 23:38
Released Medium Missing item AP Physics 1 5.2 Not-necessarily-constant sums Draft: Added vector arrow representation of impulse-momentum theorem 2020-01-11 0:22
Released Copy Missing item AP Physics C Mech 5.2 Not-necessarily-constant sums Draft: Added vector arrow representation of impulse-momentum theorem 2020-01-11 0:23
Released   SYNC (Master folder)       2020-01-11 0:25
Released Easy Cosmetic AP Physics 1 5.2 Not-necessarily-constant sums Nudged p_2,i = 0 vector label right 2020-01-11 0:32
Released Copy Cosmetic AP Physics C Mech 5.2 Not-necessarily-constant sums Nudged p_2,i = 0 vector label right 2020-01-11 0:33
Released Easy Small missing items AP Physics 2 12.8 Capacitors Made compatible with APPCEM: Added integral for energy stored, drew up arrow Delta V Riemann sum box 2020-01-11 13:31
Released Copy Small missing items AP Physics C EM E1.5 Capacitors Made compatible with APPCEM: Added integral for energy stored, drew up arrow Delta V Riemann sum box 2020-01-11 13:33
Released Medium Small missing items AP Physics 1 5.1 Impulse delivered by a force Made compatible with APPCM: Added integral for x-impulse, added t_i and t_f to figure, highlighted F_x,k (3rd Riemann sum box) rather than first, adjusted area-under-curve gradient, adjusted line spacing on varying force page 2020-01-11 14:16
Released Copy Small missing items AP Physics C Mech 5.1 Impulse delivered by a force Made compatible with APPCM: Added integral for x-impulse, added t_i and t_f to figure, highlighted F_x,k (3rd Riemann sum box) rather than first, adjusted area-under-curve gradient, adjusted line spacing on varying force page 2020-01-11 14:17
Released Easy Small missing items AP Physics 1 7.1 Work done by a force Made compatible with APPCM: Added integral for work done by varying force, added \ell_i and \ell_f to figure, highlighted F_\parallel,k (3rd Riemann sum box) rather than first, adjusted gradient for area under curve, adjusted line spacing for area under curve pg 2020-01-11 14:21
Released Copy Small missing items AP Physics C Mech 7.1 Work done by a force Made compatible with APPCM: Added integral for work done by varying force, added \ell_i and \ell_f to figure, highlighted F_\parallel,k (3rd Riemann sum box) rather than first, adjusted gradient for area under curve, adjusted line spacing for area under c 2020-01-11 14:23
Released Copy figs, Easy Small missing items AP Physics 1 8.4 Accruing effects of varying torques Made compatible with APPCM: Added integrals, updated all figures based on immediately preceding edits 2020-01-11 14:29
Released Copy Small missing items AP Physics C Mech 8.4 Accruing effects of varying torques Made compatible with APPCM: Added integrals, updated all figures based on immediately preceding edits 2020-01-11 14:30
Released Medium Small missing items AP Physics C Mech 7.1.2 Work done along a path (APPC) Stylistic changes to area-under curve figure (added \ell_i, \ell_f labels, vertical up arrow to indicate parallel component of force for Riemann sum box 2020-01-11 15:01
Released Medium Small missing items AP Physics 2 18.1 Thermo first law PV work figure: added tickmark labels for initial, final pressures and volumes, added vertical up arrow for pressure for Riemann sum box 2020-01-11 15:20
Released Easy Cosmetic AP Physics C Mech 7.1.2 Work done along a path (APPC) Area-under-curve figure: Adjusted line widths and gradient boundary locations (emphasized Riemann sum box should have 2 pt line width, other boxes 1.5 pt line width) 2020-01-11 15:27
Released Easy Cosmetic AP Physics 2 12.8 Capacitors Area-under-curve figure: Recentered bright portion of gradient, adjusted line widths and right gradient boundary location (emphasized Riemann sum box should have 2 pt line width, other boxes 1.5 pt line width) 2020-01-11 15:34
Released Copy Cosmetic AP Physics C EM E1.5 Capacitors Area-under-curve figure: Recentered bright portion of gradient, adjusted line widths and right gradient boundary location (emphasized Riemann sum box should have 2 pt line width, other boxes 1.5 pt line width) 2020-01-11 15:36
Released Easy Error AP Physics 2 17.3 Subatomic physics p. 2: "(Non) conservation laws"->"Conservation laws", changed style of subscripts EXT ON SYS to EXT->SYS 2020-01-13 11:36
Released Easy Cosmetic AP Physics 1 12.1 Electric charge and force Charge conservation: changed subscript style on DeltaQ term, Electric charge (added faint gray "electric" before "charge" in body text of definition), various line spacing-type adjustments 2020-01-13 11:44
Released Copy Cosmetic AP Physics C EM E1.1 Electric charge and force Charge conservation: changed subscript style on DeltaQ term, Electric charge (added faint gray "electric" before "charge" in body text of definition), various line spacing-type adjustments 2020-01-13 11:46
Released Easy Cosmetic AP Calculus AB 1.3 Calculating limits p. 2 Trig limits: Changed dashed line style from 2pt dash, 8pt gap, round end caps to 5pt dash, 5pt gap, square end caps 2020-01-14 11:52
Released Tedious Error AP Calculus AB 2.3 l'Hospital's rule Expanded discussion in artificial motivating example to get to conclusion that looks like strong form of l'H, added explicit hypothesis-conclusion presentation of l'H, edited steps to require explicit mentioning of individual limits turning into 0s or infinities and mentioning "Using l'Hopital's rule", reformatted examples accordingly, used ln L format (instead of writing out exp(ln( )) in last example (power to quotient) example, expanded page size to 11"x14.875" 2020-01-15 1:40
Released   SYNC (Master folder)       2020-01-15 1:46
Released Easy Cosmetic AP Calculus AB 2.3 l'Hospital's rule Changed the first set of purple labels (Eqs. 3.1) to emoji of zany face 2020-01-15 2:24
Released Tedious Missing item Make and solve physics T.1.2 Experimental design Draft: Giant chart for solving experimental design and analysis problems 2020-01-16 14:31
Released Easy Cosmetic error Make and solve physics T1.2 Experimental design Opened artboard downward (to prevent chopping off bottom of poster), rephrased title, added DAVIDLIAO.COM near title, mentioned multiple input quantities when computing plausible alternative value of y 2020-01-17 14:04
Released Easy Cosmetic AP Physics 1 7.1 Work done by a force Fparallel-ell graph: Fixed line widths (2 pt for emphasized Riemann sum rect, 1.5 else), moved gradient shading vertical boundaries; why did the exported image dimensions slightly change? 2020-01-17 14:29
Released Copy Cosmetic AP Physics C Mech 7.1 Work done by a force Fparallel-ell graph: Fixed line widths (2 pt for emphasized Riemann sum rect, 1.5 else), moved gradient shading vertical boundaries; why did the exported image dimensions slightly change? 2020-01-17 14:31
Released Easy Cosmetic AP Calculus AB 3.1 Definite integrals and area Re-expressed definite integral definition with n->infty rather than Deltax->0; moved integral boundary locations vertically outward, adjusted line spacing to keep handout to single page, changed N to n 2020-01-17 18:30
Released Easy Cosmetic AP Calculus BC 3.8 Improper integrals Re-expressed definite integral definition with n->infty rather than Deltax->0, changed N to n 2020-01-17 18:31
Released Easy Cosmetic AP Calculus AB 3.2 RAM Moved integral boundary locations vertically outward; adjusted line spacing to keep handout to single page, changed N to n 2020-01-17 18:37
Released Easy Cosmetic AP Calculus AB 3.2.2 TAM Moved integral boundary locations vertically outward; adjusted line spacing to make handout spacing consistent with 3.2, changed N to n 2020-01-17 18:38
Released Easy Error AP Calculus AB 3.2 RAM Column subtitle for "Subinterval" renamed from n to i 2020-01-17 18:44
Released Easy Error AP Calculus AB 3.2.2 TAM Column subtitle for "Subinterval" renamed from n to i 2020-01-17 18:45
Released Easy Cosmetic AP Calculus AB 3.2.3 TAM Renumbered 3.2.2->3.2.3 2020-01-17 19:18
Released Easy Cosmetic AP Calculus AB 3.2.4 Integration table Renumbered 3.2.3->3.2.4 2020-01-17 19:18
Released Medium Missing item AP Calculus AB 3.2.2 Matching definite integrals with limits of Riemann sums Created draft 2020-01-17 19:20
Released Easy Cosmetic AP Calculus AB 3.2.1 RAM Renumbered 3.2->3.2.1 2020-01-17 19:21
Released Medium Missing item AP Calculus AB 2.6 Derivative tests pg. 1: Added parenthetic light-gray "(strictly)" to names for increasing and decreasing; p.o.i. pg: Added table column headers (Hypotheses | Illustration | Name); added Larson, Finney, Hass definitions of concave up/down and noted in "examples of sufficient conditions" that condition in terms of f' was essential feature of Larson, Finney, Hass definition; various little table alignment nudges 2020-01-18 12:47
Released   SYNC (Master folder)       2020-01-18 12:49
Released Easy Cosmetic AP Calculus AB 2.6 Derivative tests pg. 1: Removed parenthetic light-gray "(strictly)" from names for increasing and decreasing 2020-01-18 12:53
Released Easy Cosmetic AP Calculus AB 2.6 Derivative tests Concavity pg.: Grammatical/word-choice/formatting-level edits to inline footnotes referring to Larson, Finney, and Hass textbooks 2020-01-18 12:57
Released Easy Cosmetic AP Physics 1 5.1 Impulse delivered by a force Fx-t graph: Fixed line widths (2 pt for emphasized Riemann sum rect, 1.5 else), moved gradient shading vertical boundaries 2020-01-19 20:19
Released Copy Cosmetic AP Physics C Mech 5.1 Impulse delivered by a force Fx-t graph: Fixed line widths (2 pt for emphasized Riemann sum rect, 1.5 else), moved gradient shading vertical boundaries 2020-01-19 20:20
Released Easy Cosmetic AP Physics 1 8.4 Accruing effects of varying torques Graphs: fixed line widths (2 pt for emphasized Riemann sum rect, 1.5 else), moved gradient shading vertical boundaries 2020-01-19 20:26
Released Copy Cosmetic AP Physics C Mech 8.4 Accruing effects of varying torques Graphs: fixed line widths (2 pt for emphasized Riemann sum rect, 1.5 else), moved gradient shading vertical boundaries 2020-01-19 20:28
Released Easy Cosmetic AP Physics 1 7.2.1 Potential energy GPE: Added mass m label to box, added down arrow to first down segment of path II, added "1 m" scale bar; Draft: pg. 2: Reworded "A conserved quantity?" to read "A constant sum?", added mass m label to sphere 2020-01-19 20:54
Released Copy Cosmetic AP Physics C Mech 7.2.1 Potential energy GPE: Added mass m label to box, added down arrow to first down segment of path II, added "1 m" scale bar; Draft: pg. 2: Reworded "A conserved quantity?" to read "A constant sum?", added mass m label to sphere 2020-01-19 20:57
Released Easy Cosmetic AP Physics C Mech 7.5 Types of collisions Renumbered old 7.4->new 7.5 2020-01-19 22:16
Released Easy Cosmetic AP Physics 1 7.5 Types of collisions Renumbered old 7.4->new 7.5 2020-01-19 22:17
Released Easy Cosmetic AP Physics 1 7.4 SiQuENC Work-energy Renumbered old 7.3->new 7.4 2020-01-19 22:18
Released Tedious Missing item AP Physics 1 7.3 Internal energy Created draft 2020-01-19 22:37
Released Copy Missing item AP Physics C Mech 7.3 Internal energy Created draft 2020-01-19 22:38
Released Easy Cosmetic AP Physics 2 18.1 Thermo first law Heating methods lattice vibrations insets: Nudged upper rows up and lower rows down to make crystal lattice look more isotropic 2020-01-19 22:46
Released Easy Cosmetic AP Calculus AB 1.1 Limit definitions The quotations marks surrounding the equals signs for the infinite limits: made fainter (gray) 2020-01-19 22:50
Released Easy Cosmetic AP Calculus AB 2.7 Curve sketching Increased spacing (added third-font-size space) between "of" and Italic "f" in figure 2020-01-19 22:57
Released Medium Cosmetic AP Physics 2 18.1 Thermo first law Changed subscripts from Delta Q_{INTO SYS} and Delta W_{ON SYS} to Delta Q_{SURR->SYS} and Delta W_{SURR->SYS} 2020-01-19 23:13
Released Easy Cosmetic AP Physics 2 18.2 Thermo second law pg. 1: Delta Q_REV,INTO SYS replaced with Delta Q_REV,SURR->SYS; pg. 3: replaced INTO and ON prepositions in subscripts with ->, various little vertical align nudging 2020-01-19 23:22
Released Medium Cosmetic SAT Physics 5.2.1 Heating curve Changed graph from collection of segments to joined path, changed endcap style from round to square, added origin to graph, added scale breaks to graph 2020-01-19 23:44
Released Easy Cosmetic AP Physics C Mech 7.4 SiQuENC Work-energy Renumbered old 7.3->new 7.4 2020-01-19 22/16
Released Medium Cosmetic SAT Physics 18.3 Heat engines Changed subscript prepositions "ON" and "INTO" to arrows in text and figures, a bunch of resizing/nudging to make everything fit oK, vertically centered figures in their table cells, grammatical edits to discussions of Carnot heat engine efficiency and Carnot heat pump c.o.p.s 2020-01-20 0:31
Released   SYNC (Master folder)       2020-01-20 0:34
Released Easy Missing item Make and solve physics T.1.2 Experimental design Added warning blurb about MC trap where proposed procedure specifies changing variable that shouldn't be changed; did some nudging 2020-01-21 14:31
Released Easy Cosmetic AP Calculus BC 3.8 Improper integrals Vertical asymptote in interior: Adjusted blue and pink gradients in right half of graph 2020-01-21 15:47
Released Easy Cosmetic AP Calculus BC 3.8 Improper integrals Horizontal shift of main part of graph for vertical asymptote concept figure, vertical asymptote right boundary figure, vertical asymptote at both left and right boundaries figure 2020-01-21 16:06
Released Medium Cosmetic AP Calculus BC 3.8 Improper integrals pg. 1: Concept of issues with old definition of integral: both figures: Added arrows to indicate Delta x and f(x_[something]^*) 2020-01-21 22:54
Released Tedious Small missing items AP Physics 1 7.3 Internal energy Centered Earth with ball, redid dashed bubble enclosing ball and Earth, added lots of stroboscopic faint images for springs, fixed top center horizontal spring that had endpoints in wrong places (didn't properly connect with particles), added small labeled diagrams for one representative particle and one representative spring, changed mass label for main ball to uppercase M, removed whooshies from box (but included whooshies for representative particle with illustrated velocity vector) 2020-01-22 2:25
Released Copy Small missing items AP Physics C Mech 7.3 Internal energy Centered Earth with ball, redid dashed bubble enclosing ball and Earth, added lots of stroboscopic faint images for springs, fixed top center horizontal spring that had endpoints in wrong places (didn't properly connect with particles), added small labeled diagrams for one representative particle and one representative spring, changed mass label for main ball to uppercase M, removed whooshies from box (but included whooshies for representative particle with illustrated velocity vector) 2020-01-22 2:27
Released Easy Cosmetic AP Physics 2 18.2 Thermo second law Unavailability of energy to do work: adjusted some vertical spacings between vectors and labels (v, one of the Delta x) 2020-01-22 2:31
Released   SYNC (Master folder)       2020-01-22 2:33
Released Medium Cosmetic AP Physics 1 7.3 Internal energy Added stroboscopic copies (with some whooshies) for "zoom-in-box-&-rays", adjusted shape of bottom (2?) whooshies on peak-of-trajectory snapshot 2020-01-22 12:20
Released Copy Cosmetic AP Physics C Mech 7.3 Internal energy Added stroboscopic copies (with some whooshies) for "zoom-in-box-&-rays", adjusted shape of bottom (2?) whooshies on peak-of-trajectory snapshot 2020-01-22 12:21
Released Easy Cosmetic AP Physics 1 3.6 Free-fall & projectile motion Both panels: Peak-of-flight snapshot: Replaced bottom 2 whooshies with bottom 2 whooshies from edits to 7.3 2020-01-22 12:28
Released Copy Cosmetic AP Physics C Mech 3.6 Free-fall & projectile motion Both panels: Peak-of-flight snapshot: Replaced bottom 2 whooshies with bottom 2 whooshies from edits to 7.3 2020-01-22 12:30
Released Easy Cosmetic AP Physics 1 4.5 Gravitation Changed labels L and R to 1 and 2, cheated spacing on + and = surrounding Delta W_HANDS in energy bar chart 2020-01-23 0:12
Released Copy Cosmetic AP Physics C Mech 4.5 Gravitation Changed labels L and R to 1 and 2, cheated spacing on + and = surrounding Delta W_HANDS in energy bar chart 2020-01-23 0:14
Released   SYNC (Master folder)       2020-01-23 0:16
Released Easy Cosmetic AP Physics 1 7.3 Internal energy Added light blue dashed arrows showing correspondences between energy differences with microscopic view and U_INT for macroscopic view 2020-01-23 1:28
Released Copy Cosmetic AP Physics C Mech 7.3 Internal energy Added light blue dashed arrows showing correspondences between energy differences with microscopic view and U_INT for macroscopic view 2020-01-23 1:29
Released Easy Cosmetic AP Physics 1 3.6 Free-fall & projectile motion Replaced -j unit vector with u_DOWN 2020-01-23 1:32
Released Copy Cosmetic AP Physics C Mech 3.6 Free-fall & projectile motion Replaced -j unit vector with u_DOWN 2020-01-23 1:33
Released Easy Cosmetic AP Physics 1 7.3 Internal energy Reworded sentence about bookkeeping energy so that sentence would not have an orphan word 2020-01-23 1:34
Released Copy Cosmetic AP Physics C Mech 7.3 Internal energy Reworded sentence about bookkeeping energy so that sentence would not have an orphan word 2020-01-23 1:36
Released Easy Missing item Make and solve physics T1.2 Experimental design Added illustration of error bars to first section on uncertainty 2020-01-23 1:46
Released Tedious Missing item AP Physics 1 7.2.1 Potential energy Draft: Added 1st page showing potential energy as a store receiving work (push apart Earth and spacecraft) 2020-01-23 17:12
Released Copy Missing item AP Physics C Mech 7.2.1 Potential energy Draft: Added 1st page showing potential energy as a store receiving work (push apart Earth and spacecraft) 2020-01-23 17:14
Released   SYNC (Master folder)       2020-01-23 17:17
Released Easy Cosmetic AP Physics 1 7.2.1 Potential energy pg. 1: Renamed HL and HR H1 and H2, respectively, in figure and text, added barely visible bars for K_S,I and K_S,f, changed bar chart annotation to indicate that those bars were "enlarged to show detail" 2020-01-23 21:20
Released Copy Cosmetic AP Physics C Mech 7.2.1 Potential energy pg. 1: Renamed HL and HR H1 and H2, respectively, in figure and text, added barely visible bars for K_S,I and K_S,f, changed bar chart annotation to indicate that those bars were "enlarged to show detail" 2020-01-23 21:22
Released Easy Cosmetic AP Physics 1 7.2.1 Potential energy Changed derivation for pg. 1 to start from W-E theorem for E and S individually, changed an "is" near bottom to "was" 2020-01-24 23:22
Released Copy Cosmetic AP Physics C Mech 7.2.1 Potential energy Changed derivation for pg. 1 to start from W-E theorem for E and S individually, changed an "is" near bottom to "was" 2020-01-24 23:23
Released Easy Small missing item AP Physics 1 7.1 Work done by a force pg. 1: Added light gray formula for instantaneous power for AP Physics C 2020-01-25 0:15
Released Copy Small missing item AP Physics C Mech 7.1 Work done by a force pg. 1: Added light gray formula for instantaneous power for AP Physics C 2020-01-25 0:17
Released   SYNC (Master folder)       2020-01-25 0:18
Released Easy Small missing item AP Calculus AB 3.2.1 RAM Added columns for left and right edges of subintervals, removed sentence near bottom to keep handout to single page, cleaned up main table cells 2020-01-26 1:49
Released Easy Cosmetic AP Calculus AB 3.2.3 TAM Made style more consistent with 3.2.1 RAM (non-Italicized superscript L and R), cleared out table main cells, added note about TAM = (LRAM + RRAM)/2 2020-01-26 1:53
Released Medium Missing item AP Calculus BC 4.5 Parametric Added integrals to vector kinematics section, added another tangent segment to main y vs. x figure so can talk about y'' 2020-01-26 2:20
Released Easy Cosmetic AP Calculus BC 4.5 Parametric Re-expressed integration relationships using definite integrals and bounds 2020-01-26 2:41
Released   SYNC (Master folder)       2020-01-26 2:43
Released Easy Cosmetic AP Physics 1 4.5 Gravitation Centered congruent hash marks on forces 2020-01-27 1:19
Released Copy Cosmetic AP Physics C Mech 4.5 Gravitation Centered congruent hash marks on forces 2020-01-27 1:20
Released Easy Cosmetic AP Physics 1 4.5 Gravitation Changed mind: Shifted congruent hash marks on forces 2020-01-27 1:35
Released Copy Cosmetic AP Physics C Mech 4.5 Gravitation Changed mind: Shifted congruent hash marks on forces 2020-01-27 1:36
Released Medium Cosmetic AP Physics 1 7.2.1 Potential energy pg. 1: Ug Push apart Earth & spacecraft: distinguished congruent hashes among rows, pg. 2: Us: removed box, removed horizontal end segments of springs, added particles, renamed force F_PENUL. MORSEL->LAST MORSEL, removed "floors" 2020-01-27 2:24
Released Copy Cosmetic AP Physics C Mech 7.2.1 Potential energy pg. 1: Ug Push apart Earth & spacecraft: distinguished congruent hashes among rows, pg. 2: Us: removed box, removed horizontal end segments of springs, added particles, renamed force F_PENUL. MORSEL->LAST MORSEL, removed "floors" 2020-01-27 2:26
Released   SYNC (Master folder)       2020-01-27 2:28
Released Easy Cosmetic AP Calculus AB 3.2.2 Matching definite integrals with limits of Riemann sums Changed instructions for getting limit of Riemann sum to mention "n" and to include explicit construction of a row dedicated just to "ith" subinterval 2020-01-27 15:59
Released Tedious Missing item AP Physics 1 7.2.1 Potential energy Added lots more details to Us figure labeling small force diagrams so can actually talk about Us, changed notation in text too 2020-01-27 16:56
Released Copy Missing item AP Physics C Mech 7.2.1 Potential energy Added lots more details to Us figure labeling small force diagrams so can actually talk about Us, changed notation in text too 2020-01-27 16:57
Released   SYNC (Master folder)       2020-01-27 16:59
Released Easy Cosmetic AP Calculus AB 2.6 Derivative tests pp. 1 & 3: Added 1pt line spacing above & below table column header for sufficient conditions 2020-01-29 12:28
Released Medium Missing item AP Calculus AB 4.2 Using integrals for areas Average value figure: Added Riemann sum boxes, Average value text: Added equation showing motivation for definition of fAVG 2020-01-29 19:13
Released Easy Small error AP Calculus AB 3.1 Definite integrals and area Figure for limit of Riemann sum: Last figure's f(xi* was missing *, fixed 2020-01-29 19:16
Released Easy Cosmetic AP Calculus AB 4.2 Using integrals for areas Minor line spacing tweaks near bottom of top panel text 2020-01-29 19:20
Released   SYNC (Master folder)       2020-01-29 19:22
Released Easy Cosmetic AP Calculus AB 4.2 Using integrals for areas Top panel: Split text/eqtns into 2 columns, tweaked line spacing in bottom panel; full table: tweaked horizontal positions of column divider, indentation/alignments of figures 2020-01-29 20:19
Released Easy Small error Make and solve physics T.1.2 Experimental design Removed warning at bottom of poster about "don't say prove" (there are some types of not-very-mechanistic claims that can be shown correct) 2020-01-31 17:52
Released Easy Missing items AP Physics 1 7.1 Work done by a force Added AVG subscripts in work formula (e.g. F_parallel,AVG), broke off sum W_F = W_sum F idea into separate block of text/eqtn 2020-01-31 18:11
Released Copy Missing items AP Physics C Mech 7.1 Work done by a force Added AVG subscripts in work formula (e.g. F_parallel,AVG), broke off sum W_F = W_sum F idea into separate block of text/eqtn 2020-01-31 18:12
Released Tedious Missing items AP Physics 1 7.2.1 Potential energy Spring potential energy: change index i to index j; add normal forces to spring picture (otherwise create appearance of unbalanced forces on massless particles), show hand, draw some representative particle displacements 2020-01-31 19:40
Released Copy Missing items AP Physics C Mech 7.2.1 Potential energy Spring potential energy: change index i to index j; add normal forces to spring picture (otherwise create appearance of unbalanced forces on massless particles), show hand, draw some representative particle displacements 2020-01-31 19:42
Released   SYNC (Master folder)       2020-01-31 19:43
Released Easy Cosmetic AP Physics 1 7.2.1 Potential energy Spring potential energy: Added hand to final picture 2020-02-01 0:05
Released Copy Cosmetic AP Physics C Mech 7.2.1 Potential energy Spring potential energy: Added hand to final picture 2020-02-01 0:07
Released Medium Small missing items AP Physics 2 13.1 Magnetism Draft: Added derivation of force on small current element formula; added some quantities (35% opacity) to small current element formula figure) 2020-02-01 0:44
Released Copy fig parts Small missing items AP Physics C EM M1.1 Magnetism with calculus Draft: Added derivation of force on small current element formula; added some quantities (35% opacity) to small current element formula figure) 2020-02-01 0:46
Released Tedious Innovation AP Physics 1 12.4 Current Traffic "vehicles" representation of current added to or replacing arrow current representations for intro current, KJR, R combos 2020-02-01 1:50
Released Copy figs (and one fig part) Innovation AP Physics C EM E2.1.1 Current Traffic "vehicles" representation of current added to or replacing arrow current representations for intro current, KJR, R combos 2020-02-01 1:52
Released Easy Cosmetic AP Physics 2 13.1 Magnetism Velocity vector: End cap round->square, nudged v vector label 2020-02-01 2:00
Released Easy Cosmetic AP Physics C EM M1.1 Magnetism with calculus Velocity vector: End cap round->square, nudged v vector label 2020-02-01 2:02
Released   SYNC (Master folder)       2020-02-01 2:04
Released Easy Cosmetic AP Physics C Mech 6.2 Mass-averaging over continuous mass distributions (APPC) 2-d potato: Added directional arrows for dx and dy, integral equation underneath for xcom: added lower boundary "FORM" 2020-02-05 23:59
Released Easy Cosmetic AP Physics 1 11.2 Speed of wave on string Draft: Added FBD dots to FBDs (small size to not overwhelm spheres) 2020-02-06 0:15
Released Medium Cosmetic AP Physics 1 12.5 DC (equilibrated) operation Draft: Switched current representation style to match updated 12.4 and E2.1.1 (traffic "vehicles" style); added some missing "I" labels; adjusted vertical spacing between rows 2020-02-06 0:55
Released Copy Cosmetic AP Physics C EM E2.1.2 DC (equilibrated) operation Draft: Switched current representation style to match updated 12.4 and E2.1.1 (traffic "vehicles" style); added some missing "I" labels; adjusted vertical spacing between rows 2020-02-06 0:57
Released   SYNC (Master folder)       2020-02-06 0:58
Released Tedious Missing item AP Physics 1 8.0.1 Rotational statics (APP1) Created draft to introduce torque formula for classes that do rotational statics before introducing N2L for rotation 2020-02-06 12:17
Released Easy Cosmetic AP Physics 1 6.1 Center of mass cribsheet Fixed line spacing underneath first equation on pg. 2 2020-02-06 17:35
Released Copy Cosmetic AP Physics C Mech 6.1 Center of mass cribsheet Fixed line spacing underneath first equation on pg. 2 2020-02-06 17:36
Released Easy Cosmetic AP Physics 1 8.0.1 Rotational statics (APP1) Removed extra space before closing parenthesis in title, restyled pivot using bigger pivot (from ideal pendulum figure) with firm supporting ground, fixed layering error between force and angle arc in last figure (perpendicularity) 2020-02-06 17:49
Released Easy Cosmetic AP Physics 1 8.2 Torque and rotational inertia Adjusted line spacing for torque formula-pair's first appearance (pg. 2) for consistency with pg. 4 2020-02-06 17:52
Released Copy Cosmetic AP Physics C Mech 8.2 Torque and rotational inertia Adjusted line spacing for torque formula-pair's first appearance (pg. 2) for consistency with pg. 4 2020-02-06 17:53
Released Easy Cosmetic AP Physics 1 8.2 Torque and rotational inertia Fixed line spacing error at top of pg. 3 (removed extra line before text) 2020-02-06 17:54
Released Copy Cosmetic AP Physics C Mech 8.2 Torque and rotational inertia Fixed line spacing error at top of pg. 3 (removed extra line before text) 2020-02-06 17:56
Released Easy Cosmetic AP Physics 1 8.0.1 Rotational statics (APP1) Adjusted line spacing for torque formula pair (to be consistent with edit made for 8.2) 2020-02-06 17:57
Released   SYNC (Master folder)       2020-02-06 17:59
Released Easy Technical error AP Calculus BC 4.5 Parametric Integral formula rewrote y(x) as y(t(x)) to avoid abuse of notation, added sentence about derivative and integral relationships having counterparts with x<->y 2020-02-08 1:51
Released Easy Cosmetic Make and solve physics T.1.2 Experimental design Adjusted some horizontal alignment of y = f(x) and table in Linearization panel 2020-02-08 2:06
Released Tedious Missing item Make and solve physics T.0.3 Writing arguments for FRQs Created (days ago, but now copied into handouts folder): Species of argument structures (loosely like having species of counterpoint) 2020-02-08 16:19
Released Medium Missing item AP Physics 1 8.0.2 SiQuENC Rotational equilibrium (APP1) Created draft: (for classes that cover rotational equilibrium before covering N2L for rotation) 2020-02-08 17:31
Released Easy Cosmetic Make and solve physics T.1.2 Experimental design Some nudging of vertical alignment near bottom 2020-02-08 23:13
Released Easy Cosmetic AP Phyiscs 1 8.0.2 SiQuENC Rotational equilibrium (APP1) Grammar: "Write conditions" instead of "Write condition" 2020-02-09 22:35
Released Easy Cosmetic Make and solve physics T.0.3 Writing arguments for FRQs 1st species example: Refer to y-axis instead of x-axis, add subscripts to distinguish inertial and gravitational mass; 4th species example: changed wording referring to mass and acceleration, made compound relationship 2020-02-10 11:37
Released   SYNC (Master folder)       2020-02-10 11:39
Released Easy Cosmetic AP Physics 1 8.1 Rotational kinematics and dynamics cribsheet (APP1) Adjusted line spacing for torque definitions 2020-02-10 12:50
Released Easy Cosmetic AP Physics C Mech 8.1 Rotational kinematics and dynamics cribsheet calc (APPC) Adjusted line spacing for torque definitions and changed subscript content/style for rotational impulse sum (EXT->SYS) 2020-02-10 12:56
Released Easy Cosmetic AP Physics 1 8.5 Rotational not-necessarily-constant sums Changed subscript on angular impulse torque sum from EXT ON SYS to EXT->SYS 2020-02-15 15:31
Released Copy Cosmetic AP Physics C Mech 8.5 Rotational not-necessarily-constant sums Changed subscript on angular impulse torque sum from EXT ON SYS to EXT->SYS 2020-02-15 15:32
Released Easy Cosmetic AP Physics 1 8.4 Accruing effects of varying torques Increased line spacing from 6 pt to 8 pt after titles 2020-02-15 15:34
Released Copy Cosmetic AP Physics C Mech 8.4 Accruing effects of varying torques Increased line spacing from 6 pt to 8 pt after titles 2020-02-15 15:35
Released Easy Cosmetic AP Physics 1 8.1 Rotational kinematics and dynamics cribsheet (APP1) In angular impuilse term, changed summation subscript from EXT ON SYS to EXT->SYS 2020-02-15 15:36
Released Medium Cosmetic error AP Physics 1 8.2 Torque and rotational inertia Rotational inertia panel for increased radius: Fixed alignment error for position of the mini person on the stick 2020-02-15 15:51
Released Copy Cosmetic error AP Physics C Mech 8.2 Torque and rotational inertia Rotational inertia panel for increased radius: Fixed alignment error for position of the mini person on the stick 2020-02-15 15:52
Released   SYNC (Master folder)       2020-02-15 15:54
Released Medium Errors AP Calculus BC 5.1 Series, tests, and remainders Draft: Pp. 1-4 fixed a bunch of partial sum expressions that were from n = 1 to infty but should have been from i = 1 to n (with index i in summands), removed quotations marks surrounding = sign in front of +infty for limit comparison test, restyled conditions for limit ratio test and root test cases (no more explicit mention of L, added + signs in front of infties) 2020-02-17 1:04
Released Easy Cosmetic AP Calculus AB 1.1 Limit definitions Pg. 1: Infinite limits: Adjusted spacings for the string "=" +infty 2020-02-17 1:05
Released Easy Cosmetic AP Calculus AB 2.3 l'Hospital's rule Adjusted some spacings and alignments related to \pm type symbols in front of infties (two of the \pm needed to be lifted to the numerator of slanted fractions) 2020-02-17 1:08
Released   SYNC (Master folder)       2020-02-17 1:10
Released Medium Cosmetic AP Calculus BC 5.1 Series, tests, and remainders Taylor of ln(x) figure: adjusted layering/opacity, smoothed ln curve, added interval restriction to overlaid equation textbox 2020-02-22 0:42
Released Easy Cosmetic AP Calculus BC 5.2 Common Taylor series ln panel: Moved interval information to front of panel (rather than have interval information as a parenthetic phrase at end of panel) 2020-02-22 0:45
Released Medium Missing item AP Calculus BC 5.3.2 Series calculus tricks Obtaining series Added various faint hints of concern about intervals of convergence, reformatted definite integrals on pg. 2 to take less space (integrated from t = 1 to t = x rather than from x = x_i to x = x_f) 2020-02-22 1:47
Released   SYNC (Master folder)       2020-02-22 1:50
Released Easy Cosmetic AP Physics 1 12.1 Electric charge and force pg. 1 definitions for Charges in materials: Boldfacified Conductors and insulators 2020-02-28 17:18
Released Copy Cosmetic AP Physics C EM E1.1 Electric charge and force pg. 1 definitions for Charges in materials: Boldfacified Conductors and insulators 2020-02-28 17:20
Released Easy Cosmetic AP Physics 2 15.3 Light interrupted Adjusted line spacings so equations would not look smushed into horizontal rules 2020-03-01 16:54
Released Medium Cosmetic AP Calculus BC 5.1 Series, tests, and remainders Alternating: Added faint dots for describing remainder estimation/bound, Taylor ln graph: Changed layering of interval of convergence, opacity of gradient for interval of convergence, to match style for Lagrange error bound figure; Lagrange error bound figure: Added coordinate pair for (1.5, T2(1.5)), added glows to some text straddling solid vertical line, made error bound markers faint (to match style for alternative series error bound dots) 2020-03-01 17:18
Released   SYNC (Master folder)       2020-03-01 17:21
Released Easy Cosmetic AP Physics 2 16.3 Raytracing to determine visibility Car-tree-mirror figure: Reduced line width of dashed normals and perpendicular signs from 3 pt to 2 pt 2020-03-01 17:32
Released Medium Missing item AP Physics 1 5.2 Not-necessarily-constant sums Draft: Situations: Added measurement of spring deformation, changed vertical dashed line thickness, fixed text stretch for \ell, improved some spring horizontal alignments 2020-03-01 18:09
Released Copy Missing item AP Physics C Mech 5.2 Not-necessarily-constant sums Draft: Situations: Added measurement of spring deformation, changed vertical dashed line thickness, fixed text stretch for \ell, improved some spring horizontal alignments 2020-03-01 18:11
Released Easy Missing item AP Physics 1 5.0 Newt 2 can be re-expressed Draft: Inherit spring deformation measurement, vertical dashed line thickness, fixed text stretch for \ell, improved horizontal alignment for spring 2020-03-01 18:18
Released Copy Missing item AP Physics C Mech 5.0 Newt 2 can be re-expressed Draft: Inherit spring deformation measurement, vertical dashed line thickness, fixed text stretch for \ell, improved horizontal alignment for spring 2020-03-01 18:19
Released Easy Cosmetic AP Physics 1 5.2 Not-necessarily-constant sums Spring horizontal alignments (top subpanel of top figure) 2020-03-01 18:34
Released Copy Cosmetic AP Physics C Mech 5.2 Not-necessarily-constant sums Spring horizontal alignments (top subpanel of top figure) 2020-03-01 18:35
Released Easy Cosmetic AP Calculus BC 3.6 Integration by parts In LIPET table, changed "Power law" to Power" 2020-03-02 11:04
Released Medium Missing item AP Calculus AB 3.3.1 u-sub is backwards chain rule Added more notes about choosing u (LIPET table, prioritizing expressions "inside" operations), spelled out isolation of dx, spelled out finding bounds, added mention of "indefinite" to last step (replacing u with expression in terms of x for indefinite integrals) 2020-03-02 11:27
Released Medium Cosmetic AP Physics 1 12.1 Electric charge and force Draft: Adapted charging by conduction figure as clipart near top of pg. 1 (added dashed bubbles so could talk about different systems) 2020-03-03 16:33
Released Copy Cosmetic AP Physics C EM E1.1 Electric charge and force Draft: Adapted charging by conduction figure as clipart near top of pg. 1 (added dashed bubbles so could talk about different systems) 2020-03-03 16:33
Released Medium Cosmetic AP Physics 1 12.1 Electric charge and force Draft: In each panel with an unlabeled charged object, added labels (like Q_1); showed outgoing charge in induction middle panel 2020-03-04 12:23
Released Copy Cosmetic AP Physics C EM E1.1 Electric charge and force Draft: In each panel with an unlabeled charged object, added labels (like Q_1); showed outgoing charge in induction middle panel 2020-03-04 12:24
Released Tedious Cosmetic AP Physics 1 7.5 Types of collisions Draft: Added labels to show spring compression, lots of little alignment edits 2020-03-04 15:54
Released Copy Cosmetic AP Physics C Mech 7.5 Types of collisions Draft: Added labels to show spring compression, lots of little alignment edits 2020-03-04 15:55
Released   SYNC (Master folder)       2020-03-04 15:57
Released Easy Cosmetic AP Physics 1 12.4 Current Reworded KJR (total current entering …), Romanized subscript E on power on last line on last page 2020-03-09 1:50
Released Easy Cosmetic AP Physics C EM E2.1.1 Current Reworded KJR (total current entering …), Romanized subscript E on power on last line on last page 2020-03-09 1:52
Released Easy Cosmetic AP Physics 1 8.6 SiQuENC Angular impulse-momentum (APP1) Changed lower bound for sum in angular impulse from EXT ON SYS to EXT->SYS, compensatorily adjusted horizontal alignment of equation 2020-03-10 13:01
Released Easy Cosmetic AP Physics C Mech 8.6 SiQuENC Angular impulse-momentum calc (APPC) Changed lower bound for sum in angular impulse from EXT ON SYS to EXT->SYS, compensatorily adjusted horizontal alignment of equation 2020-03-10 13:02
Released Easy Cosmetic AP Physics 1 12.1 Electric charge and force In formula e = 1.60x10^-19 C, inserted space between numerical value and unit C 2020-03-15 19:40
Released Copy Cosmetic AP Physics C EM E1.1 Electric charge and force In formula e = 1.60x10^-19 C, inserted space between numerical value and unit C 2020-03-15 19:42
Released Medium Cosmetic AP Physics 1 12.4 Current KLR: Moved label for Path I (was really close to hand outline), added outer glow to label for Path I; added blue morsel to current figure 2020-03-15 20:08
Released Copy fig/parts Cosmetic AP Physics C EM E2.1.1 Current KLR: Moved label for Path I (was really close to hand outline), added outer glow to label for Path I; added blue morsel to current figure 2020-03-15 20:16
Released   SYNC (Master folder)       2020-03-15 20:18
Released Easy Cosmetic AP Physics 1 10.4 SHM Ignoring gravity Added "constant" and "uniform" to 2 locations relating to gravitational force and gravitational field, respectively 2020-03-20 0:23
Released Copy Cosmetic AP Physics C Mech 10.4 SHM Ignoring gravity Added "constant" and "uniform" to 2 locations relating to gravitational force and gravitational field, respectively 2020-03-20 0:25
Released Easy Cosmetic AP Physics 1 10.2 SHM UCM connection UCM picture: whooshy streaks linewidth changed from 2 pt to 1 pt, adjusted whooshy positions; removed vertical rule in table underneath UCM picture 2020-03-20 0:31
Released Copy Cosmetic AP Physics C Mech 10.2 SHM UCM connection UCM picture: whooshy streaks linewidth changed from 2 pt to 1 pt, adjusted whooshy positions; removed vertical rule in table underneath UCM picture 2020-03-20 0:32
Released Copy fig Cosmetic AP Physics 1 10.2 SHM cribsheet UCM picture: whooshy streaks linewidth changed from 2 pt to 1 pt, adjusted whooshy positions 2020-03-20 0:34
Released Copy Cosmetic AP Physics C Mech 10.2 SHM cribsheet UCM picture: whooshy streaks linewidth changed from 2 pt to 1 pt, adjusted whooshy positions 2020-03-20 0:36
Released   SYNC (Master folder)       2020-03-20 0:37
Released Easy Cosmetic AP Physics 1 4.6 Ellipitical orbits Added explicit formula entry for GPE, changed style of EXT ON SYS subscript for angular impulse to EXT->SYS 2020-03-22 13:51
Released Copy Cosmetic AP Physics C Mech 4.6 Ellipitical orbits Added explicit formula entry for GPE, changed style of EXT ON SYS subscript for angular impulse to EXT->SYS 2020-03-22 13:53
Released Easy Cosmetic AP Physics C EM E1.3 Conductors near equilibrium Changed wording for equipotential set to mention slowly nudge 2020-03-25 19:16
Released Copy fig Cosmetic AP Physics C EM E1.2 Electric fields and potentials with calculus Copied newer Kirchoff Loop Rule figure (pg. 2) 2020-03-25 19:18
Released Easy Cosmetic AP Physics 1 10.2 SHM UCM connection UCM figure: Added corkscrew to show counterlockwise is positive, added fulcrum AOR symbol, added 0 mark for origin 2020-03-25 19:30
Released Copy Cosmetic AP Physics C Mech 10.2 SHM UCM connection UCM figure: Added corkscrew to show counterlockwise is positive, added fulcrum AOR symbol, added 0 mark for origin 2020-03-25 19:32
Released Easy Cosmetic AP Physics 1 10.3 SHM cribsheet Ideal pendulum: Changed layering so more of the semitransparent dashed grid is visible, changed end cap styles on brace for L 2020-03-25 19:37
Released Copy Cosmetic AP Physics C Mech 10.3 SHM cribsheet Ideal pendulum: Changed layering so more of the semitransparent dashed grid is visible, changed end cap styles on brace for L 2020-03-25 19:38
Released Easy Missing item AP Physics 1 8.1 Rotational kinematics and dynamics cribsheet (APP1) Non-slip: Frame of reference of AOR: Added omega curvy arrow 2020-03-25 20:16
Released Copy fig Missing item AP Physics C Mech 8.1 Rotational kinematics and dynamics cribsheet calc (APPC) Non-slip: Frame of reference of AOR: Added omega curvy arrow 2020-03-25 20:18
Released Medium Cosmetic AP Physics C EM M1.1 Magnetism with calculus Draft: Ampere's law diagram: Added traffic symbols to represent currents puncturing through surface bounded by Amperian loop 2020-03-25 20:46
Released Medium Cosmetic AP Physics 2 7.5 Fluid mechanics Continuity & Bernoulli figures: Changed end cap styles on various dashed (and some foreground solid) curves 2020-03-25 21:03
Released Easy Cosmetic AP Physics 2 14.1 Electromagnetism Motional emf: Added subscript x to net force; Faraday's law: Got rid of absolute value bars around 1st copy of Delta # lines B/Delta t 2020-03-31 13:46
Released Easy Cosmetic AP Physics C EM N1.1 Electromagnetism Motional emf: Added subscript x to net force; Faraday's law: Got rid of absolute value bars around 1st copy of d(# lines B)/dt 2020-03-31 13:48
Released Medium Cosmetic AP Physics 1 12.4 Current Current, KJR, resistor figure: Changed end cap style from round to square for dashed curved outlines (& solid outline having both line segments and curves) 2020-03-31 13:58
Released Meidum/Copy fig Cosmetic AP Physics C EM E2.1.1 Current Current, KJR, resistor figure: Changed end cap style from round to square for dashed curved outlines (& solid outlines having both line segments and curves, made Aperp for resistor have black line color) 2020-03-31 14:18
Released Easy Cosmetic AP Physics C EM E2.1.1 Current Resistor: Slightly added glow for some curved arrows and I, J text labels to improve legibility 2020-03-31 16:06
Released Easy Cosmetic AP Physics 1 12.4 Current Resistor: Slightly manipulation with outer glow to get some black symbols to separate visually 2020-03-31 16:46
Released Easy Cosmetic AP Physics C EM E2.1.1 Current Resistor: Slight layering ordering change (moved current arrow layer more into background) 2020-03-31 16:50
Released Tedious Missing item Problems   End of 2019-2020 FRQs (some require high cognitive load) Created 2020-04-03 2:15
Released   SYNC (Master folder)       2020-04-03 2:23
Released Medium Missing item Problems   2020-0403 14h20 End of 2019-2020 FRQs (some require high cognitive load) Added version with approximate category labels (QQT, PLR, LFRQ) 2020-04-03 14:20
Released   SYNC         2020-04-03 14:22
Released Easy Cosmetic AP Physics C EM E1.4 Gauss's Law The 3 little symmetry figures: End cap styles on vectors/perpendicular symbols changed from rounded to square, changed perpendicular symbol colors to purple, added charge/density labels 2020-04-08 16:18
Released Easy Cosmetic AP Physics 1 3.4.1 Drag force Renamed (3.4 -> 3.4.1) 2020-04-12 0:30
Released Easy Cosmetic AP Physics C Mech 3.4.1 Drag force Renamed (3.4 -> 3.4.1) 2020-04-12 0:31
Released Easy Cosmetic AP Physics C EM E2.3 RC Charging Alignment/size adjustment for table of initial and final conditions 2020-04-12 1:06
Released Easy Cosmetic AP Physics C EM N1.3 LR Increasing current Alignment/size adjustment for table of initial and final conditions 2020-04-12 1:12
Released Tedious Missing item AP Physics C Mech 3.4.2 Drag force integration (APPC) Draft: Created handout to show integration of N2L to obtain v_y vs. t for linear drag force 2020-04-12 1:58
Released Easy Cosmetic AP Physics 1 10.4 SHM Ignoring gravity Changed y-axis line color to pure black 2020-04-12 2:01
Released Copy Cosmetic AP Physics C Mech 10.4 SHM Ignoring gravity Changed y-axis line color to pure black 2020-04-12 2:02
Released Easy Missing item AP Physics C Mech 3.4.2 Drag force integration (APPC) Added positively-sloped tangent segment to vy-t graph at t = 0 2020-04-12 3:09
Released Medium Cosmetic AP Physics C EM N1.4.1 LC SHO Graphs Various little line-width/dash-size/marker-size small alignment correction edits 2020-04-12 3:42
Released Medium Cosmetic AP Physics 1 10.1 SHM Graphs Various little line-width/dash-size/marker-size small alignment correction edits 2020-04-12 3:45
Released Copy Cosmetic AP Physics C Mech 10.1 SHM Graphs Various little line-width/dash-size/marker-size small alignment correction edits 2020-04-12 3:47
Released   SYNC (Master folder)       2020-04-12 3:49
Released Easy Cosmetic AP Physics C Mech 8.1 Rotational kinematics and dynamics cribsheet calc (APPC) Parallel-axis theorem: Changed subscript CM to C.O.M. 2020-04-14 0:30
Released Medium Cosmetic AP Physics 1 8.1 Rotational kinematics and dynamics cribsheet (APP1) Draft: Various little end cap style/whooshy alignment/corkscrew alignment level small edits 2020-04-15 17:38
Released Copy figs/fig part Cosmetic AP Physics C Mech 8.1 Rotational kinematics and dynamics cribsheet calc (APPC) Draft: Various little end cap style/whooshy alignment/corkscrew alignment level small edits 2020-04-15 17:42
Released Easy Cosmetic AP Physics 1 8.0.1 Rotational statics (APP1) Changed "Countertwist" to "Twist" (all occurrences) 2020-04-15 17:44
Released Copy figs Cosmetic AP Physics 1 8.2 Torque and rotational inertia Copied updated torque and rotational inertia figures 2020-04-15 17:46
Released Copy Cosmetic AP Physics C Mech 8.2 Torque and rotational inertia Copied updated torque and rotational inertia figures 2020-04-15 17:47
Released Easy Cosmetic AP Physics C Mech 8.1 Rotational kinematics and dynamics cribsheet calc (APPC) Adjusted bottom couple whooshies on potato 2020-04-15 18:03
Released Easy Cosmetic AP Physics 1 8.1 Rotational kinematics and dynamics cribsheet (APP1) Adjusted bottom couple whooshies on potato 2020-04-15 18:04
Released Copy fig Cosmetic AP Physics 1 8.2 Torque and rotational inertia Adjusted bottom couple whooshies on potato 2020-04-15 18:07
Released Medium Cosmetic AP Physics C EM N1.4.1 LC SHO Graphs Extremely small nudging alignments of graph paper lines/labels 2020-04-15 18:34
Released Medium Cosmetic AP Physics 1 10.1 SHM Graphs Extremely small nudging alignments of graph paper lines/labels 2020-04-15 18:40
Released Copy Cosmetic AP Physics C Mech 10.1 SHM Graphs Extremely small nudging alignments of graph paper lines/labels 2020-04-15 18:41
Released   SYNC (Master folder)       2020-04-15 18:43
Released Created Missing item Make and solve physics T.0.4 Writing templates for FRQs Created templates (fill-in-the-blank forms) 2020-04-24 13:20
Released Easy Missing item Make and solve physics T.0.4 Writing templates for FRQs Front page: Added the chart-making guide (doesn't have explicit wording templates) 2020-04-24 21:19
Released Easy Cosmetic AP Physics 1 6.1 Center of mass cribsheet aCOMx and net force: net force subscripts in equations now have "arrow" style (e.g. EXT->SYS) 2020-04-26 3:49
Released Copy Cosmetic AP Physics C Mech 6.1 Center of mass cribsheet aCOMx and net force: net force subscripts in equations now have "arrow" style (e.g. EXT->SYS) 2020-04-26 3:51
Released Easy Missing item AP Calculus AB 1.4 Continuity and IVT Updated list of example types of continuous functions (to match College Board list, not necessarily in order) 2020-04-30 11:39
Released Easy Cosmetic AP Calculus AB 1.1 Limit definitions Draft: Slight wording changes to get rid of phrasing "positively large" 2020-04-30 12:12
Released Easy Cosmetic AP Calculus AB 1.4 Continuity and IVT List of function types that are continuous throughout their domains: Changed so all list items are singular adjectives 2020-05-01 2:27
Released Easy Cosmetic AP Calculus AB 1.3 Calculating limits Grammar: p. 2 Arithmetic evaluation of limits: Item 1: Last paragraph: First sentence: Changed "polynomials" to "polynomial" 2020-05-01 2:28
Released Medium Missing item CRR STEML 2.1.0 Reading cards Created handout (cards to remind reader steps for digesting small pieces of sentences) 2020-05-03 3:52
Released Easy Cosmetic AP Calculus AB 1.4 Continuity and IVT Added extra space before comma in quotient property 2020-05-03 4:25
Released Easy Cosmetic AP Calculus AB 2.1 Derivatives Added extra space before comma in quotient rule 2020-05-03 4:25
Released Easy Cosmetic AP Physics 1 6.1 Center of mass cribsheet pg. 2 top of page, right column: changed subscript style on net force EXT ON SYS became EXT->SYS 2020-05-15 1:22
Released Copy Cosmetic AP Physics C Mech 6.1 Center of mass cribsheet pg. 2 top of page, right column: changed subscript style on net force EXT ON SYS became EXT->SYS 2020-05-15 1:23
Released Medium Missing item AP Physics 2 7.2.2 Potential energy landscapes (APP2) Draft: Filename now has "(APP2)", added dashed bubbles (1 for force analysis, one for energy analysis, includes text referring to rest of system), small cosmetic font size/alignment changes 2020-05-15 1:54
Released Copy fig Missing item AP Physics C Mech 7.2.2 Potential energy landscapes calc (APPC) Draft: Added dashed bubbles (1 for force analysis, one for energy analysis, includes text referring to rest of system), small cosmetic font size/alignment changes 2020-05-15 1:56
Released Easy Cosmetic AP Physics 1 10.3 SHM cribsheet Pendulum: Changed A to theta_MAX in figure and equations, changed formatting of cos equations (broke into two lines because adding theta_MAX was causing line wrapping), various nudging/line resizings 2020-05-15 3:27
Released Copy Cosmetic AP Physics C Mech 10.3 SHM cribsheet Pendulum: Changed A to theta_MAX in figure and equations, changed formatting of cos equations (broke into two lines because adding theta_MAX was causing line wrapping), various nudging/line resizings 2020-05-15 3:29
Released Easy Cosmetic AP Physics 2 7.2.2 Potential energy landscapes (APP2) Pg. 2 Dashed bubble for rest of system, reshaped to have squarer edges 2020-05-18 13:48
Released Easy/Copy fig Missing item AP Physics C Mech 7.2.2 Potential energy landscapes calc (APPC) Pg. 3 Dashed bubble for rest of system, reshaped to have squarer edges; included similar bubble pg. 2 line integral figure 2020-05-18 13:55
Released Easy Cosmetic AP Physics C EM E1.2 Electric fields and potentials with calculus Pg. 2 line integral: Replaced dashed test charges with abstracted observation points 2020-05-18 14:04
Released Copy fig Cosmetic AP Physics C EM E1.2.1 Integrating over charge distributions and paths to get electrostatic field quantities Line integral: Replaced dashed test charges with abstracted observation points 2020-05-18 14:06
Released Tedious Missing item AP Physics 1 11.1 Waves Draft: Standing wave excitation-dissipation: Indicated some forces and vertical velocities, various scalings, added some no-smoking/warning symbols in resonance-not-achieved side of figure 2020-05-19 15:46
Released Tedious Missing item AP Calculus AB 2.1 Derivatives Differentiability figure: Added bunch of rulers, markers, whooshies; adjusted opacities, mask alignment 2020-05-19 18:04
Released Easy Cosmetic AP Calculus AB 1.4 Continuity and IVT IVT conditions wording: Used "between" instead of giving two compound inequalities f(a) < N < f(b) or f(b) < N < f(a) 2020-05-19 18:06
Released Medium Cosmetic AP Calculus AB 2.6 Derivative tests Cusp and POI without tangent line figures: Added whooshies, adjusted opacities for more consistency with updated 2.1, mask alignment 2020-05-19 18:11
Released Easy Cosmetic AP Calculus AB 2.4 Extrema Cusp portion of figure: Added whooshies, adjusted opacities for more consistency with updated 2.1, mask alignment 2020-05-19 18:14
Released Medium Cosmetic AP Calculus AB 2.1 Derivatives Added some marker dots (derivative figure, product rule figure); adjusted opacities of some rulers and markers in differentiability examples figure 2020-05-20 11:38
Released Copy fig Cosmetic AP Calculus BC 3.6 Integration by parts Added some marker dots to product rule figure 2020-05-20 11:40
Released Easy Cosmetic AP Calculus AB 2.4 Extrema Adjusted some opacities of some rulers 2020-05-20 11:44
Released Medium Cosmetic AP Calculus AB 2.6 Derivative tests Cusp and concavity change without tangent line figures: Adjusted some opacities of some rulers 2020-05-20 11:54
Released Medium Cosmetic AP Calculus AB 2.6 Derivative tests Cusp and concavity change without tangent line figures: Adjusted white gradient control points 2020-05-20 12:47
Released   SYNC (Master folder)       2020-05-20 12:49
Released Medium Missing item AP Physics 1 1.1 1-d Kinematics describe (APP1) Experimental: Added alt text to all 3 figures; Adobe Acrobat screen reader does not properly render equations, probably better to make separate, parallel document/script for accessibility than to attempt to force accessibility cues into this PDF 2020-05-21 13:31
Released Easy delete   AP Calculus AB 2.2.2 Derivatives of circle functions Moved to off-site storage in DOCX folder until can be made to look nice (not very pretty hand-drawn) 2020-05-21 15:55
Released Medium Cosmetic AP Calculus AB 2.2.1 Derivatives of circle functions intjuitive Changed derivative notation to d/dx notation 2020-05-21 17:12
Released Medium Cosmetic AP Calculus AB 2.1 Derivatives Draft: Changed a bunch of prime-ish notation to Leibniz notation 2020-05-23 23:11
Released Easy Cosmetic AP Calculus AB 3.4.1 Derivatives inverse functions Got rid of one instance of prime-ish notation (replaced with Leibniz) 2020-05-23 23:13
Released Medium Cosmetic AP Calculus AB 2.1 Derivatives Power rule motivation: Use more Leibniz notation, increased vertical space between panels to fit Leibniz notation in title of 2nd panel 2020-05-24 14:38
Released Medium Cosmetic AP Calculus AB 3.4.2 Exponentials and logarithms calc Changed some prime notation to Leibniz notation in figures, vertically centered y = e^x figure (middle figure) on pg. 1 2020-05-24 16:01
Released Tedious Cosmetic AP Calculus AB 2.2.1 Derivatives of circle functions intjuitive Various alignments, added more of the graph to the right to make it easier to discuss derivative of cos(x) 2020-05-24 18:11
Released Easy Cosmetic AP Calculus AB 3.3.1.1 u-sub is backwards chain rule Various small formatting/spacing adjustments 2020-05-24 21:48
Released   SYNC (Master folder)       2020-05-24 21:49
Released Tedious Error, missing item AP Calculus AB 1.4 Continuity and IVT Quotient identity caveat corrected to g(a) \neq 0 instead of g(x) \neq 0; added text about one-sided continuity and continuity at endpoints, various resuting formatting adjustments to get everything to fit 2020-05-27 15:58
Released Easy Cosmetic AP Physics 1 11.1 Waves "(axis of polarization)": Changed text gray shade from top of 2nd to bottom of 1st, slightly reformatted sound: loudness/pitch text 2020-05-27 16:21
Released Easy Cosmetic AP Physics 1 3.1 Forces figures Pg. 1: Paragraph "The preceding statement merely …": Changed text gray shade from top of 2nd to bottom of 1st 2020-05-27 16:25
Released Copy Cosmetic AP Physics C Mech 3.1 Forces figures Pg. 1: Paragraph "The preceding statement merely …": Changed text gray shade from top of 2nd to bottom of 1st 2020-05-27 16:26
Released Easy Cosmetic AP Physics 1 3.2 Force and Newton's laws cribsheet  (APP1) Changed some text shading from top of 2nd to bottom of 1st 2020-05-27 16:29
Released Easy Cosmetic AP Physics C Mech 3.2 Force and Newton's laws cribsheet  (APPC) Changed some text shading from top of 2nd to bottom of 1st 2020-05-27 16:33
Released   SYNC (Master folder)       2020-05-27 16:34
Released Easy Cosmetic AP Calculus BC 5.1 Series, tests, and remainders Pg. 1: Formal definitions grayed (shade: bottom of 1st), reworded two instances of "sufficiently positively large" as "a sufficiently large positive number" 2020-05-28 12:38
Released Medium Minor error AP Calculus AB 1.1 Limit definitions pg. 2 One sided limits that mismatch: Added 1 missing - subscript and 1 missing + subscript on the two figure panels; pg. 1: grayed formal definitions; throughout: reworded "but" phrases as "while" phases, changed "equal to" to "equaling" 2020-05-28 13:16
Released Easy Cosmetic AP Physics 2 18.2 Thermo second law Brick + microstate figures: Dashed bubble spacings (made fit to bubbles), changed arrowhead styles to CS4 for energy amount arrows 2020-06-03 1:50
Released   SYNC (Master folder)       2020-06-03 1:52
Released Easy Cosmetic AP Calculus AB 1.3 Calculating limits Sum rule figure: Lifted all the Lsubscript labels on vertical axis by 6.1299 pixels (for stylistic consistency with epsilon-delta figure) 2020-06-04 13:21
Released Tedious Missing item AP Calculus AB 2.2.2 Derivatives of circle functions Draft: Version with streamlined text and Adobe Illustrator draft of figure (rather than ugly highlighter-drawn-by-hand version) 2020-06-05 0:07
Released   SYNC (Master folder)       2020-06-05 0:12
Released Easy Cosmetic AP Physics 1 7.2.1 Potential energy Pg. 3: Object drop figure: Set vertical axis and tickmarks shade to #000000 (was a slightly off black) 2020-06-05 12:43
Released Copy Cosmetic AP Physics C Mech 7.2.1 Potential energy Pg. 3: Object drop figure: Set vertical axis and tickmarks shade to #000000 (was a slightly off black) 2020-06-05 12:45
Released Easy Cosmetic AP Calculus AB 2.2.2 Derivatives of circle functions Fig: Removed AOR pivot symbol; added notes about small \Delta\theta, added expressions with limits of difference quotients 2020-06-05 13:00
Released Tedious Missing items AP Physics 1 12.3.1 Electric potential Draft: Conductor at electrostatic equilibrium comic strip: Lots of additional labeling (e.g. forces, velocities, electron indices) 2020-06-05 13:17
Released Copy fig Missing items AP Physics C EM E1.3 Conductors near equilibrium Draft: Conductor at electrostatic equilibrium comic strip: Lots of additional labeling (e.g. forces, velocities, electron indices) 2020-06-05 13:19
Released Tedious Cosmetic AP Physics 1 10.2 SHM UCM connection Draft: UCM figure: Make angle obviously not 45 deg (made noticeably smaller than 45 degrees) 2020-06-06 1:58
Released Copy fig Cosmetic AP Physics 1 10.3 SHM cribsheet Draft: UCM figure: Make angle obviously not 45 deg (made noticeably smaller than 45 degrees) 2020-06-06 2:01
Released Copy Cosmetic AP Physics C Mech 10.2 SHM UCM connection Draft: UCM figure: Make angle obviously not 45 deg (made noticeably smaller than 45 degrees) 2020-06-06 2:02
Released Copy Cosmetic AP Physics C Mech 10.3 SHM cribsheet Draft: UCM figure: Make angle obviously not 45 deg (made noticeably smaller than 45 degrees) 2020-06-06 2:02
Released   SYNC (Master folder)       2020-06-06 2:03
Released Easy Cosmetic AP Physics 1 11.1 Waves Draft: Standing waves superposition intro fig: Re-laid out clocks vertically going down page, added arrow labeled Deltat = T/2, shortened caption to (b) Half period elapses 2020-06-13 12:57
Released Easy Cosmetic AP Calculus BC 4.7 Polar calculus Made color scheme of pg. 1 figure more consistent with color scheme of AP Calc AB 2.2.2 Derivatives of circle functions 2020-06-13 15:12
Released Easy Cosmetic AP Calculus AB 2.2.2 Derivatives of circle functions Made color scheme more consistent with color scheme of AP Calc BC 4.7 Polar calculus 2020-06-13 15:15
Released Easy Cosmetic AP Calculus AB 1.4 Continuity and IVT Pencil test figure: Separated label "hole" from label Removable discontinuity; IVT figure: minor adjustment to brace and label "unvisited heights" 2020-06-19 3:51
Released Tedious Missing item Make and solve physics T.0.2 Production system algebra-based physics Created draft (based on drafts made since ~2020 May 4) 2020-06-21 18:29
Released   SYNC (Master folder)       2020-06-21 18:41
Released Tedious Cosmetic AP Physics 1 11.1 Waves Snapshot, history, transverse, longitudinal figs: End cap style round->square; resonance-dissiptation fig: got rid of unnecessary reflection symbol in 3rd panel row, added inset to clarify how FBD should be drawn at string-wave generator attachment point (but did not make accurate remaining panels), horizontally aligned wave generator anchor head ghost images with wave generator pillar in each panel; made transverse fig style more consistent with longitudinal fig style (for most particles, show right-now and equilibrium positions only) 2020-06-22 2:01
Released Easy Cosmetic Make and solve physics T.0.2 Production system algebra-based physics Small alignment/pen handle adjustments: ATorque and NetTorque connections, Si.RigEx, and Si.FixSk 2020-06-22 2:10
Released   SYNC (Master folder)       2020-06-22 2:12
Released Easy Cosmetic Make and solve physics T.0.2 Production system algebra-based physics Minor alignment, color/shade, and wording changes (e.g. … very interesting -> … is very interesting) 2020-06-27 1:37
Released Easy Cosmetic AP Calculus AB 2.1 Derivatives Product rule 3d: slightly adjustments for pretty function graph curves; introduction: changed Defn. 1->Definition 1, likewise for 2, shrank first fig to allow more white space to right of fig, some wording changes re: function notation 2020-06-27 1:49
Released Copy fig Cosmetic AP Calculus BC 3.6 Integration by parts Product rule 3d: slightly adjustments for pretty function graph curves 2020-06-27 1:51
Released Easy Cosmetic AP Calculus AB 2.1 Derivatives Differentiability: Boldfaced some vocabulary being introduced, adjusted layering of some rules/whooshies, added some labeled tickmarks on x axis;  Product rule 3d: Added some black arrows for function values and for foreground portion of x-axis, product rule: removed line with "Area" words, added Deltaf\cdotDeltag term to numerator of following line 2020-07-01 2:06
Released Copy fig Cosmetic AP Calculus BC 3.6 Integration by partsd Product rule 3d: Added some black arrows for function values and for foreground portion of x-axis 2020-07-01 2:07
Released   SYNC (Master folder)       2020-07-01 2:10
Released Easy Missing item CRR STEML 2.3.1 Rule chart Created item: Chart for tracking logical statements (good for taking notes in geometry) 2020-07-03 1:49
Released Medium Missing item Make and solve physics T.0.3 Writing arguments for FRQs Added references and made the reference for the counterpoint exercises more complete 2020-07-04 0:23
Released Tedious Missing item Make and solve physics T.2.1 Make problems with the help of REASoN and SiQuENC Created draft: Handout that suggests starting from abstract representations of relationships and quantities and then working toward concrete scenario descriptions and questions 2020-07-05 16:12
Released Tedious Missing item Make and solve physics T.0.2.1 Production system uses Created draft based on updated version of T.0.2. Includes vignettes of ways thinking about ontological shifts can be useful when designing, categorizing, solving, and grading problems 2020-07-05 16:34
Released Easy Cosmetic Make and solve physics T.0.2 Production system algebra-based physics Updated two labels so that AngImpMom -> AngImpAngMom 2020-07-05 16:37
Released   SYNC (Master folder)       2020-07-05 17:36
Released Easy Missing item AP Calculus AB 2.1 Derivatives Quotient rule: Added intermediate form d/dx[f(x)(g(x))^-1] 2020-07-06 1:38
Released Easy Cosmetic AP Calculus AB 1.3 Calculating limits Limit of a composite function & Squeeze theorem: Changed Hypotheses->Hypothesis, changed bullets of Limit of a composite function to numbers to match style for squeeze theorem, added horizontal rule above Limit of a composite function 2020-07-06 23:32
Released Easy Cosmetic AP Calculus AB 1.4 Continuity and IVT Changed word Hypotheses->Hypothesis (2 instances), for Continuity of composite functions, changed bullets to numbers (to match style of hypothesis items for IVT) 2020-07-06 23:38
Released Easy Cosmetic AP Calculus AB 2.3 l'Hospital's rule Hypotheses->Hypothesis, Hypothesis items changed from bulleted to numbered, removed unnecessary "Therefore," near bottom right, adjusted line spacing accordingly 2020-07-06 23:45
Released Easy Cosmetic AP Calculus AB 2.4 Extrema Converted Extreme Value Theorem in Hypothesis Conclusion style (with numbered conclusion items) 2020-07-07 0:01
Released Easy Cosmetic AP Calculus AB 2.5 Rolle & MVT Draft: Hypotheses->Hypothesis, converted bulleted lists to numbered lists, added title "Relating average and instantaneous rates of changes", added horizontal rules, reduced font size 16pt->11pt for subtitles 2020-07-07 2:00
Released Easy Cosmetic AP Calculus AB 2.6 Derivative tests Draft: Pp. 4-5: Hypotheses->Hypothesis, p. 4: Formatted hypothesis subitems using numbered lists 2020-07-07 2:10
Released Easy Cosmetic AP Calculus AB 3.2.4 Integration table All table header rows: Added 2 pt of spacing above and below line of text 2020-07-07 2:14
Released Easy Cosmetic AP Calculus BC 3.8 Improper integrals p. 3: Comparison theorem: Hypotheses->Hypothesis, Changed bulleted hypothesis item list to numbered list, made conclusion numbered list 2020-07-07 2:25
Released Easy Cosmetic AP Calculus BC 5.1 Series, tests, and remainders Draft: Various grammatical (Hypotheses->Hypothesis) level edits 2020-07-07 2:37
Released Medium Missing item Ridge-iculously hard Honors Precalculus R1.0.1 Domain restriction Created worksheet 2020-07-08 6:07
Released Easy Cosmetic CRR STEML 2.3.1 Rule chart Changed wording to emphasize the idea of "allows" 2020-07-08 21:52
Released Medium Cosmetic AP Physics 1 11.1 Waves Added uparrows to sound correspondences (loudness/volume, amplitude; pitch, frequency), changed double-headed arrows to implication style double-headed arrows; lots of layering (make black axes behind color curves); beat frequency: added little extensions to ends of dark red graphs 2020-07-09 2:20
Released   SYNC (Master folder)       2020-07-09 2:24
Released Medium Missing item Make and solve physics T.4 SiQuENC rubric Created draft (needed for tutoring today) 2020-07-09 13:21
Released Easy Missing item Ridge-iculously hard Honors Precalculus R1.3 Beware of challenging problems Created draft: Table for comparing different problems from different sources 2020-07-11 17:28
Released Tedious Missing item CRR STEML 1.1 Learn and apply STEM knowledge Created draft: Flowchart 2020-07-11 23:35
Released Easy Cosmetic AP Calculus AB 1.1 Limit definitions One-sided limits exist, but limit does not exist figure: fixed vertical alignment of "0" for axis system, added ghostly 12.5% opacity L- and L+ tickmarks and dashed lines 2020-07-14 1:59
Released Medium Cosmetic AP Calculus AB 2.1 Derivatives Implicit differentiation: Changed some notation (e.g. wrote 3x^-1 to make power rule easier to apply); higher derivatives: nudged some path handles and function tangent segment at x = 0; various figures: slightly increased space between label x and tip of arrow of x axis 2020-07-14 2:48
Released Easy Cosmetic AP Calculus AB 2.3 l'Hospital's rule Tangent through x-intercept figure: Made distance from y-axis to x-axis label same as in Derivative figure in handout 2.1 2020-07-14 2:54
Released   SYNC (Master folder)       2020-07-14 2:56
Released Medium Cosmetic AP Physics 2 17.2.1 Special relativity Added quotation marks around "synchronized" (description of frame of reference), added subscript x to Deltav/Delta t (for average x-acceleration), added space in front of units for speed of light; lots of little alignment-type edits (vertical alignment of Delta L perp for left panel of time dilation page is most prominent of such edits) 2020-07-27 2:14
Released Easy Cosmetic AP Physics 2 15.3 Light interrupted Added space in every speed of light between numerical value and units 2020-07-27 2:22
Released Easy Cosmetic AP Physics 2 15.1 Physical (wave) optics Added space in speed of light in front of units 2020-07-27 2:24
Released Easy Cosmetic AP Physics 1 11.1 Waves Added space in front of units for speeds of sound and light and for temperature (20 deg C) 2020-07-27 2:26
Released Easy Cosmetic AP Calculus AB 2.1 Derivatives Higher-order derivatives text: Unified style/spacing for "prime" symbols in derivatives 2020-08-09 16:29
Released Easy Cosmetic AP Calculus AB 1.1 Limit definitions In subscripts where the limit is "approaching" infinity, I added faint (bottom of 1st col shade) quotation marks around the -> 2020-08-09 16:31
Released Easy Missing item AP Calculus AB 1.3 Calculating limits Draft: Trig limits figure: Added xy axis system with tickmarks at x =1 and y = 1 on axes, minor formatting changes 2020-08-09 16:53
Released Easy Cosmetic AP Physics C EM M1.4 Mass spectrometer Extended mass spectrometer wall down, added +y axis label for 1st FBD, added subscript y to 1st mention of net force 2020-08-09 17:21
Released Copy Cosmetic AP Physics 2 13.3 Mass spectrometer Extended mass spectrometer wall down, added +y axis label for 1st FBD, added subscript y to 1st mention of net force 2020-08-09 17:23
Released Copy fig parts Cosmetic AP Physics 2 17.1.1 Quantum physics Updated mass spectrometer figure to be consistent with recent edits to mass spec handouts 2020-08-09 17:29
Released Easy Cosmetic AP Physics 2 13.1 Magnetism B-field from line current figure: Corrected layering error (part of a B-field loop was not correctly layered behind small white mask) 2020-08-09 17:32
Released Copy fig Cosmetic AP Physics C EM M1.1 Magnetism with calculus B-field from line current figure: Corrected layering error (part of a B-field loop was not correctly layered behind small white mask) 2020-08-09 17:35
Released Easy Cosmetic AP Physics C EM M1.1 Magnetism with calculus B-field superposition equation: Added "&\cdots" to subscript after 1&2 2020-08-09 17:36
Released Easy Cosmetic AP Physics 2 13.1 Magnetism B-field superposition equation: Added "&\cdots" to subscript after 1&2 2020-08-09 17:38
Released Easy Cosmetic AP Physics 2 16.3 Raytracing to determine visibility Eclipse: Shadow two-letter initials shrunk to 90% size, resolution increased; objects seen in mirror: changed objects 2020-08-09 17:55
Released   SYNC (Master folder)       2020-08-09 21:08
Released Tedious Missing item CRR STEML 2.1.1 Reading card large Draft: Created handout: Translating among representations 2020-08-15 21:15
Released Copy Missing item Problems   2020-0521 FRQ bank (some require high cognitive load) Copied into public folder version from 2020 May 21 2020-08-19 19:36
Released   SYNC (Master folder)       2020-08-19 19:37
Released Medium Missing item CRR STEML 3.0 REASoN grid Created item 2020-08-27 4:20
Released Easy Cosmetic AP Physics 2 17.1.1 Quantum physics Photoelectric effect graph: Removed arrowhead on plotted line 2020-08-29 22:02
Released Easy Cosmetic AP Physics 1 1.1 1-d Kinematics describe (APP1) Gray box showing velocity difference: Removed extra small space between Deltav and subscript 2,3 2020-08-29 22:07
Released Copy fig Cosmetic AP Physics 1 1.2.2 UAM position formula derivation Gray box showing velocity difference: Removed extra small space between Deltav and subscript 2,3 2020-08-29 22:09
Released Copy Cosmetic AP Physics C Mech 1.2.2 UAM position formula derivation Gray box showing velocity difference: Removed extra small space between Deltav and subscript 2,3 2020-08-29 22:11
Released Copy fig Cosmetic AP Physics C Mech 1.1 1-d Kinematics describe calc (APPC) Gray box showing velocity difference: Removed extra small space between Deltav and subscript 2,3 2020-08-29 22:13
Released Easy Missing item AP Physics 1 2.2.3 Resolve vector components using trigonometry Step 3: Inserted text "acute or right" 2020-09-07 20:39
Released Copy Missing item AP Physics C Mech 2.2.3 Resolve vector components using trigonometry Step 3: Inserted text "acute or right" 2020-09-07 20:41
Released Easy Missing item CRR STEML 2.1.1.2 Taking notes using multiple representations (not just AP) Created from 2.1.1.1 (removed AP-specific language such as EU/LO/EK), changed orientation to portrait 2020-09-07 21:35
Released Medium Missing item AP Physics 1 2.2.1 Vectors Draft: Added xy axis system to first figure panel, redid layout to fit on a single 14x11" page 2020-09-08 18:38
Released Copy Missing item AP Physics C Mech 2.2.1 Vectors Draft: Added xy axis system to first figure panel, redid layout to fit on a single 14x11" page 2020-09-08 18:40
Released Easy Cosmetic AP Physics 1 2.2.1 Vectors Draft: Changed table border style (removed gaps just near top of page) 2020-09-08 21:41
Released Copy Cosmetic AP Physics C Mech 2.2.1 Vectors Draft: Changed table border style (removed gaps just near top of page) 2020-09-08 21:42
Released Tedious Missing item AP Physics 1 1.2 1-d Kinematics graph interpretation Draft: Added 1st page with stick figure/scenario and corresponding x-t, vx-t, ax-t graphs 2020-09-08 23:16
Released Copy Missing item AP Physics C Mech 1.2 1-d Kinematics graph interpretation Draft: Added 1st page with stick figure/scenario and corresponding x-t, vx-t, ax-t graphs 2020-09-08 23:18
Released Copy fig parts Cosmetic AP Physics 1 1.1 1-d Kinematics describe (APP1) Replaced UAM stick-figure panel to correct length of v4 vector 2020-09-09 15:30
Released Copy fig Cosmetic AP Physics C Mech 1.1 1-d Kinematics describe calc (APPC) Replaced UAM stick-figure panel to correct length of v4 vector 2020-09-09 15:31
Released Medium Cosmetic AP Physics 1 1.2.2 UAM position formula derivation Replaced UAM stick-figure panel to correct length of v4 vector, updated vx-t graph to have scale consistent with graph from 1.2 and stick figure 2020-09-09 15:33
Released Copy Cosmetic AP Physics C Mech 1.2.2 UAM position formula derivation Replaced UAM stick-figure panel to correct length of v4 vector, updated vx-t graph to have scale consistent with graph from 1.2 and stick figure 2020-09-09 15:34
Released   SYNC (Master folder)       2020-09-09 15:38
Released Easy Cosmetic AP Calculus AB 1.4 Continuity and IVT f/g, g(a) \neq 0 changed to f/g if g(a) \neq 0 2020-09-12 3:01
Released Easy Cosmetic AP Calculus AB 1.3 Calculating limits Changed comma to "if" for division law of limits 2020-09-12 3:14
Released Easy Cosmetic AP Calculus AB 2.1 Derivatives Changed comma to "if" for quotient rule 2020-09-12 3:15
Released   SYNC (Master folder)       2020-09-12 3:16
Released Easy Cosmetic AP Physics C EM E1.4 Gauss's Law Added language to title formula for flux through infinitesimal patch, in step list added language "and label" just before dA_OUT 2020-09-28 16:50
Released   SYNC (Master folder)       2020-09-28 16:53
Released Medium Missing item AP Physics 1 2.2.1 Vectors Draft: Velocity addition: Added image of boat, six-pack plastic, axis systems 2020-10-04 20:05
Released Copy Missing item AP Physics C Mech 2.2.1 Vectors Draft: Velocity addition: Added image of boat, six-pack plastic, axis systems 2020-10-04 20:07
Released   SYNC (Master folder)       2020-10-04 20:08
Released Medium Cosmetic AP Physics 1 2.2.1 Vectors Added faint ",AVG" to subscripts in velocity addition panel text, Velocity addition figure: Decreased opacity of ",AVG" in subscripts to 50%, added details (whooshies/stroboscopic after images), scalar multiplication: changed style on minus signs 2020-10-09 1:06
Released Copy Cosmetic AP Physics C Mech 2.2.1 Vectors Added faint ",AVG" to subscripts in velocity addition panel text, Velocity addition figure: Decreased opacity of ",AVG" in subscripts to 50%, added details (whooshies/stroboscopic after images), scalar multiplication: changed style on minus signs 2020-10-09 1:08
Released Easy Cosmetic AP Physics C Mech 2.3 2-d Kinematics calc tiles (APPC) Stroboscopic figure: Second panel: changed i and f in subscript to t and t + Delta t, respectively 2020-10-09 1:18
Released Easy Cosmetic AP Calculus AB 3.4.1 Derivatives inverse functions Added "Hypothesis" and "Conclucion" titles, added hypothesis g(x) = f^{-1}(x), added "if f'(g(a)) \neq 0" in conclusion, triangle figure: changed hyphen to minus sign, adjusted radical size accordingly, decreased opacity of right angle symbol to 50%, made triangle less tall 2020-10-09 1:33
Released   SYNC (Master folder)       2020-10-09 1:36
Released Easy Missing item AP Calculus AB 2.1 Derivatives Product and quotient rules: Added "(Provided that f'(x) and g'(x) exist)" 2020-10-14 11:51
Released Easy Missing item AP Calculus AB 2.6.1 Derivative tests sentences worksheet (Created item from existing worksheet from tutoring) 2020-11-24 13:39
Released Easy Error AP Calculus AB 2.4 Extrema Fixed definitions for maxes/mins, organized into table 2020-12-03 1:54
Released Easy Missing item AP Calculus AB 2.6 Derivative tests Changed table column header "Illustration" to "Graph of f" 2020-12-03 1:57
Released   SYNC (Master folder)       2020-12-03 1:58
Released Tedious Missing item Arbitrage-free pricing 1.1 No arbitrage & constancy of price ratios for deterministic final prices (Created item) 2020-12-06 17:41
Released Easy Cosmetic Arbitrage-free pricing 1.1 No arbitrage & constancy of price ratios for deterministic final prices Changed V_A(…, T) to V_A(…) 2020-12-10 1:37
Released Easy Cosmetic Arbitrage-free pricing 1.1 No arbitrage & constancy of price ratios for deterministic final prices Changed V_A to A 2020-12-26 19:47
Released Easy Cosmetic AP Physics 2 11.1 Waves Moved from AP Physics 1/ to AP Physics 2/ 2020-12-26 19:58
Released Easy Cosmetic AP Physics 2 11.2 Speed of wave on string Moved from AP Physics 1/ to AP Physics 2/ 2020-12-26 19:58
Released Easy Cosmetic AP Physics 2 11.4 Doppler Moved from AP Physics 1/ to AP Physics 2/ 2020-12-26 19:58
Released Easy Cosmetic AP Physics 2 12.1 Electric charge and force Moved from AP Physics 1/ to AP Physics 2/ 2020-12-26 19:58
Released Easy Cosmetic AP Physics 2 12.2 SiQuENC Charge transfer Moved from AP Physics 1/ to AP Physics 2/ 2020-12-26 19:58
Released Easy Cosmetic AP Physics 2 12.3.1 Electric potential Moved from AP Physics 1/ to AP Physics 2/ 2020-12-26 19:58
Released Easy Cosmetic AP Physics 2 12.4 Current Moved from AP Physics 1/ to AP Physics 2/ 2020-12-26 19:58
Released Easy Cosmetic AP Physics 2 12.5 DC (equilibrated) operation Moved from AP Physics 1/ to AP Physics 2/ 2020-12-26 19:58
Released Easy Cosmetic AP Physics 2 12.6 Laboratory precautions and measurements for DC circuits Moved from AP Physics 1/ to AP Physics 2/ 2020-12-26 19:58
Released Easy Cosmetic AP Physics 2 12.7 SiQuENC DC Circuits Moved from AP Physics 1/ to AP Physics 2/ 2020-12-26 19:58
Released Easy Cosmetic AP Physics 2 11.1 Waves In title, changed "for AP Physics 1" to "for AP Physics 2" 2020-12-26 19:59
Released Easy Cosmetic AP Physics 2 12.7 SiQuENC DC Circuits In title, changed "for AP Physics 1" to "for AP Physics 2" 2020-12-26 20:01
Released   SYNC (Master folder)       2020-12-26 20:06
Released Medium Missing item Arbitrage-free pricing 2.1 Construct arbitrage portfolios with forwards (Created item) 2020-12-26 21:10
Released Easy Cosmetic Arbitrage-free pricing 3.1 Construct arbitrage portfolios with forwards Renamed file (index now 3.1 rather than 2.1) 2020-12-28 23:31
Released Easy Missing item Arbitrage-free pricing 2.1 Qualitative graphical estimation of risk-neutral price function Created item from page of notes from tutoring 2020-12-28 23:32
Released Easy Missing item Arbitrage-free pricing 2.2 Option-price duality Created item from page of notes from tutoring 2020-12-28 23:36
Released   SYNC (Master folder)       2020-12-28 23:37
Released Easy Cosmetic Arbitrage-free pricing 2.2 Option-price duality Removed extra (2nd) page 2020-12-28 23:38
Released Easy Cosmetic Arbitrage-free pricing 3.1 Construct arbitrage portfolios with forwards Added footer DAVIDLIAO.COM 2020-12-28 23:39
Released   SYNC (Master folder)       2020-12-28 23:40
Released Easy Cosmetic Arbitrage-free pricing 4.1 Construct arbitrage portfolios with forwards Renamed file (index now 4.1 rather than 3.1) 2020-12-30 16:30
Released Easy Cosmetic Arbitrage-free pricing 3.1 Option-price duality Renamed file (index now 3.1 rather than 2.2) 2020-12-30 16:55
Released Medium Missing item Arbitrage-free pricing 2.2 Black-Scholes Created item from notes from tutoring 2020-12-30 23:35
Released Easy Cosmetic Arbitrage-free pricing 2.1 Qualitative graphical estimation of risk-neutral price function Moved "(x)" and flowchart curvy arrow 2020-12-30 23:40
Released Easy Cosmetic Arbitrage-free pricing 3.1 Option-price duality Added asterisk (*) to name of PDF 2020-12-30 23:42
Released Easy Error Arbitrage-free pricing 2.1 Qualitative graphical estimation of risk-neutral price function Changed notation for risk-neutral probability distribution to indicate a PMF instead of a PDF 2020-12-30 23:49
Released Tedious Missing item Arbitrage-free pricing 1.2 Motivation for risk-neutral pricing ansatz (single-branch example) Created item 2021-01-03 0:00
Released Medium Missing item Arbitrage-free pricing 1.1 IBL Constructing arbitrage portfolios Created item 2021-01-03 0:07
Released Easy Cosmetic Arbitrage-free pricing 1.2 Motivation for risk-neutral pricing ansatz (single-branch example) Adjusted text style in first section header 2021-01-03 0:09
Released   SYNC (Master folder)       2021-01-03 0:11
Released Easy Cosmetic Arbitrage-free pricing 1.2 Motivation for risk-neutral pricing ansatz (single-branch example) Changed "single branch" to "single-branch" in running header 2021-01-03 0:13
Released Medium Missing item Arbitrage-free pricing 0.0 Connections between arbitrage-free pricing and equilibrium statistical mechanics Created item 2021-01-03 0:56
Released   SYNC (Master folder)       2021-01-03 0:57
Released Easy Missing item Arbitrage-free pricing 1.2 Motivation for risk-neutral pricing ansatz (single-branch example) Pg. 1: Added text above figure to indicate that states I and II have finite probability of being realized at time T 2021-01-03 15:59
Released Easy Cosmetic AP Physics C Mech 0.0 AP Physics C Mechanics outline Changed formatting to fit onto a single letter-sized page 2021-04-10 12:02
Released Easy Minor error AP Physics C Mech 6.2 Mass-averaging over continuous mass distributions (APPC) Fixed copy-paste errors: Changed m_3 x_3, m_3 y_3, & m_3 z_3 to, respectively, m_N x_N, m_N, y_N, & m_N z_N 2021-04-11 18:22
Released Easy Error AP Physics C Mech 3.4.2 Drag force integration (APPC) Fixed copy-paste error: decay time labeled on time axis: changed from mg/b to m/b 2021-04-11 18:29
Released   SYNC (Master folder)       2021-04-11 18:31
Released Easy Minor error Problems   2021-0507 EoY FRQ Practice Packet Edited wording for 1.5.4 QQT. Toys in slots 2021-05-07 21:41
Released Easy Minor error AP Calculus AB 4.2 Using integrals for areas Fixed typo: "RIHT " -> "RIGHT" 2021-05-19 1:09
Released Easy Error AP Physics C Mech 3.4.2 Drag force integration (APPC) v_T/e no longer labels a y-velocity axis tickmark and now labels a vertical arrow showing a difference between y-velocities 2021-05-31 10:13
Released   SYNC (Master folder)       2021-05-31 10:32
Released Easy Missing item Ridge-iculously hard Honors Precalculus R1.0.1 Domain restriction Moved some stuff in 2nd and 3rd columns around, changed graphical representation of domain to, simply, graph 2021-06-19 14:56
Released Easy Cosmetic Ridge-iculously hard Honors Precalculus R1.0.1 Domain restriction Changed some labels for table cells 2021-06-21 16:44
Released Easy Missing item CRR STEML 2.3.1.1 Rule chart (Dark) Created black-and-white version from light-blue-and-white version 2021-07-03 12:20
Released   SYNC (Master folder)       2021-07-03 12:22
Released Easy Missing item AP Physics 1 3.5 SiQuENC Forces Added text to Axis in BETA (If there is no direction of acceleration, orient axes to minimize the number of forces that fail to point along a drawn axis.) 2021-09-18 2:57
Released Copy Missing item AP Physics C Mech 3.5 SiQuENC Forces Added text to Axis in BETA (If there is no direction of acceleration, orient axes to minimize the number of forces that fail to point along a drawn axis.) 2021-09-18 2:59
Released Easy Cosmetic AP Physics 1 1.3 SiQuENC 1-d Kinematics Added missing space: t_iand -> t_i and 2021-09-18 3:00
Released Copy Cosmetic AP Physics C Mech 1.3 SiQuENC 1-d Kinematics Added missing space: t_iand -> t_i and 2021-09-18 3:02
Released Easy Cosmetic AP Physics 1 7.1 Work done by a force Figure for stronger force: Removed small green rectangle 2021-09-18 3:11
Released Copy Cosmetic AP Physics C Mech 7.1 Work done by a force Figure for stronger force: Removed small green rectangle 2021-09-18 3:12
Released   SYNC (Master folder)       2021-09-18 3:13
Released Medium Missing item Ridge-iculously hard Honors Precalculus R1.1 Make sadistic problems Created item 2021-10-15 14:52
Released Medium Missing item Quant Interviewing 1.1 Counting Adapted from internal precalculus notes 2022-01-08 0:47
Released Medium Missing item Quant Interviewing 1.2 Probability & conditional probability Adapted from middle-school & high school precalculus notes 2022-01-08 0:48
Released Medium Missing item Quant Interviewing 1.3 Agile probabilistic reasoning Created item 2022-01-08 0:49
Released Easy Cosmetic AP Physics 1 2.3.1 SiQuENC 2-d Kinematics Changed "t_iand t_f" to "t_i and t_f" 2022-01-08 0:55
Released Copy Cosmetic AP Physics C Mech 2.3.1 SiQuENC 2-d Kinematics Changed "t_iand t_f" to "t_i and t_f" 2022-01-08 0:56