| Harold's Cheat Sheets | ||
| Harold's Algebra Cheat Sheet | Docx | Summarizes an Algebra textbook |
| Harold's Parent Functions: Algebraic & Conics Cheat Sheet | Docx | My parent functions and their inverses for algebraic, transcendental, and the conic sections. Also called Library of Functions. |
| Harold's Graphing Rationals Cheat Sheet | Docx | My tips on graphing rational polynomial functions P(x)/Q(x) |
| Harold's Illegals Cheat Sheet | Docx | My list of common illegal (undefined) math operations |
| Harold's Math Etiquette Cheat Sheet | Docx | Lists bad math etiquette, illegal math operations, and how to polish your work. |
| Harold's Math is Fun Cheat Sheet | Docx | Fun math graphs, images, jokes, quotes, and proofs from basic math to calculus. |
| Paul's Online Math Notes | ||
| Algebra Cheat Sheet - Full | Fits on four pages (source link) | |
| Algebra Cheat Sheet - Reduced | Fits on one 2-sided printout (source link) | |
| Algebra Notes (Text Book) | Free text book (source link) | |
| Algebra & Trig Review | Review for Calculus 1 students (source link) | |
| Common Math Errors | Only two of my students have got them all correct the 1st time (source link) | |
| BarCharts QuickStudy Guide | ||
| Algebra Part 1 | ||
| Textbooks | ||
| Prealgebra 2e | Link | OpenStax free open-source textbook - Prealgebra |
| Elementary Algebra 2e | Link | OpenStax free open-source textbook - Elementary Algebra |
| Intermediate Algebra 2e | Link | OpenStax free open-source textbook - Intermediate Algebra |
| College Algebra 2e | Link | OpenStax free open-source textbook - College Algebra |
| Algebra and Trigonometry | Link | OpenStax free open-source textbook - Algebra and Trigonometry |
| Links | ||
| WolframAlpha.com | Computational Knowledge Engine | |
| Wikipedia.org | The Free Encyclopedia that anyone can edit | |
| Calculator Tutorials for the TI-83/TI-84 | Calculator Tutorials for the TI-83/TI-84 by John LaPrise | |
| iPad Apps | Apple's App Store | |
| Graphing Calculator | Best Graphing Calculator | |
| WolframAlpha | The Google of Mathematics | |
| Math Ref | Best Math, Physics, and Chemistry Formulas | |
| PCalc | Best Calculator | |
| Symbolic Calculator HD | Symbolic Calculator (CAS) | |
| PocketCAS Pro | Symbolic Calculator (CAS) | |
| SpaceTime | Graphing | |
| Pi Cubed | Calculator |
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Last updated 4 October 2025