Harold's Cheat Sheets    
Harold's Trigonometry Cheat Sheet Docx My trig supplement to Paul's Online Notes
Harold's Triangles Cheat Sheet Docx Law of Sines, Cosines and Tangents
Harold's Trig Proofs Cheat Sheet Docx My proofs of three (3) trig formulas that allow us to easily derive ALL the trig formulas
Harold's Precalculus Cheat Sheet Docx My rectangular, polar, and parametric coordinate equations for conics sections
Harold's Parent Functions Cheat Sheet Docx My parent functions and their inverses for algebra, trig and the conics. Also called Library of Functions.
Harold's Exponential Growth and Decay Cheat Sheet Docx My natural growth and decay formulas used in finance, radioactive decay half-lifes, and biology bacteria growth
Harold's Graphing Rationals and Illegals Cheat Sheet Docx My list of common illegal math operations and tips on graphing P(x)/Q(x)
Harold's Series Cheat Sheet Docx My arithmentic and geometric series, permutations, and combinations formulas
Harold's Partial Fraction Expansion (Precalculus) Cheat Sheet Docx My partial fraction expansion tips with a Precalculus example
Harold's Finances Cheat Sheet Docx My basic financial equations for compounded interest and computing loan payments
Harold's Vectors Cheat Sheet Docx

My vector formulas with illustrations and examples

Harold's TI-84 Grid for Parametric Art Docx My template for creating parametric art on a TI-84 calculator
Paul's Online Math Notes    
Trig Cheat Sheet - Full
Fits on four pages (source link) (Texas: Math 2412)
Trig Cheat Sheet - Reduced
Fits on one page (2 pages per side) (source link) (Texas: Math 2412)
Algebra & Trig Review
Review for Calculus 1 students (source link) (Texas: Math 2412)
Complex Number Primer
Common complex number concepts (source link) (Texas: Math 2412)
BarCharts QuickStudy Outlines   NOTE: Use login = "student", password = "WyzAnt2".
Precalculus Link  
Trigonometry Link  
TI-84 Plus Calculator Link  
Textbooks Link Free Open-Source Textbooks
Precalculus Link OpenStax free open-source textbook - Precalculus
Algebra and Trigonometry Link OpenStax free open-source textbook - Algebra and Trigonometry
Schaum's Outline - Precalculus   Schaum's Outline of Precalculus, 2nd Edition (2008)
Precalculus: Graphical, Numerical, Algebraic   Franklin Demana, Bert K. Waits, Gregory D. Foley and Daniel Kennedy, 7th Edition (2006)
Links   Computational Knowledge Engine   The Free Encyclopedia that anyone can edit
Conic Secions   Determining Conic Sections by Inspection
Partial Fractions   Wikipedia article explaining partial fraction expansion
Calculator Tutorials for the TI-83/TI-84   Calculator Tutorials for the TI-83/TI-84 by John LaPrise
Desmos Graphing Calculator   Free Web-based graphing calculator
iPad Apps   Apple's App Store
Graphing Calculator   Best Graphing Calculator
WolframAlpha   The Google of Mathematics
Math Ref   Best Math, Physics, and Chemistry Formulas
Formulas - Formulas for Calculus   More Formulas
PCalc   Best Calculator
Symbolic Calculator HD   Symbolic Calculator (CAS)
PocketCAS Pro   Symbolic Calculator (CAS)
SpaceTime   Graphing
Pi Cubed   Calculator

Samples of my student's parametric art on a TI-84 calculator.

Parametric Art Hall of Fame Date Photo
Ryan - TI-84 Art - Futurama May 2012 Donald Duck
Jessica - TI-84 Art - Donald Duck May 2011 Donald Duck
Lauren - TI-84 Art - Mini Mouse May 2011 Mini Mouse


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Last updated 8 May 2024