Mathematics resources

Here is a collection of math links for arithmetic, algebra, trigonometry, statistics, higher math, history of math, and even recreational and practical math. There are also links to tables and pages with problems designed to stump and challenge. Some sites require plug-ins and Java.

1. Algebra, Calculus, Geometry and Trigonometry
2. Elementary and Middle School Math
3. General Math Resources
4. Graphers and Calculators
5. History of Math
6. Recreational Math and Stumpers
7. Statistics and Probability
8. Tables and Constants

Algebra, Calculus, Geometry and Trigonometry

• Algebrahelp.com Worksheets and lessons that cover nearly all high school and freshman college algebra. There is an explanation of how to do word problems, but no word problems for practice.
• Ask Dr. Math: College A question and answer service for math students and their teachers covering all areas of math. Maintained by the Math Forum @ Drexel University.
• Dave's Short Trig Course This site is an outline style textbook that covers basic concepts in trigonometry including trigonometric functions and their inverses but not conic sections.
• EE Link "Your link to environmental education resources on the Internet." Includes: classroom activities, a calendar, grant information, and even a job board.
• Karl's Calculus Tutor Extensive outline style explanations, including worked problems, for precalculus and differential calculus. Also includes a section on why one should take calculus, a check list of things one should already know, and tips on sending mathematical notation through email.
• Purplemath Lessons Understandable explanations of beginning, intermediate, and advanced algebra topics.
• Virtual Polyhedra: The Encyclopedia of Polyhedra A tutorial on polyhedra by George W. Hart, a computer scientist professor and geometric artist.
• Webmath.com Solves math problems by showing the steps required for the solution. Topics include algebra, geometry, and trigonometry as well as basic and elementary school math.

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Elementary and Middle School Math

• A+ Math "This web site was developed to help students improve their math skills interactively. " Problems cover extremely basic arithmetic and mathematical games, and include work sheets and flash cards. Topics include: addition, subtraction, multiplication, division, money problems, decimals, percentages, and fractions.
• Ask Dr. Math: Middle School A question and answer service for math students and their teachers covering all areas of math. Maintained by the Math Forum @ Drexel University.
• Math League Help Topics Covers basic math topics with examples for 4th through 8th grades.
• Problem of the Week Math Contest Four new math problems are posted each week for for elementary and middle school students.

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General Math Resources

• Dictionary of Number Words "A dictionary of English language words, phrases, prefixes, suffixes, and symbols that describe numbers."
• Internet Public Library: Mathematics A well-organized and maintained list of math related links in a variety of topics.

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Graphers and Calculators

• GCalc Graph algebra, trigonometric, and even differential calculus functions using this free Java-based online graphing calculator.
• Plane Graphic Calculator "The Plane Graphic Calculator is a software tool that interactively displays a graphical view of mathematical functions." The interactive graphing software will handle most functions, including vectors. Keep the numbers low or scale up the graph proportionally

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History of Math

• A Modern History of Blacks in Mathematics Small but detailed biographies of and links to pages about famous Black mathematicians from 1849 through 1997.
• The Abacus A well organized site about the abacus covering general information, history, articles and a interactive virtual abacus.
• The Museum of HP Calculators Virtual museum of Hewlett-Packard calculators from 1968 to 1986.

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Recreational Math and Stumpers

• Brainbasher's Brain Teasers and Puzzles Mathematical stumpers at various levels including visual problems and games.
• IBM Ponder This "You are cordially invited to match wits with some of the best minds in IBM Research. Seems some of us can't see a problem without wanting to take a crack at solving it. Does that sound like you? Good. Forge ahead and ponder this month's problem. We'll post a new one every month, and allow two to three weeks for you to submit solutions (we may even publish submitted answers, especially if they're correct)." Since these problems are submitted by and for engineers and programmers, they are extremely challenging. Not for the mathematically faint of heart.
• Interactive Mathematics Miscellany and Puzzles "A resource that would help to learn, if not math itself, then, at least, ways to appreciate its beauty... A resource for things, simple but curious, related to mathematics." An assortment of math games and trivia with fairly extensive explanations. Requires curiosity and interest rather than subject background.

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Statistics and Probability

• Probability Web A collection of probability resources on the web.
• Stat Trek: Statistics and Probability Features free statistics tutorials cover the central ideas of basic statistics, analytical tools for statistics and probability, and an online statistics glossary.
• StatLib "A system for distributing statistical software, datasets, and information by FTP and WWW." Software and datasets are arranged in a table. This site is for the statistically sophisticated, though it also provides a glossary that explains the offerings.
• StatSci.org A meta site for statistical links, including books, journals, and data sets. Designed for the person with some knowledge of statistics and who also knows exactly what he/she wants.
• The Statistics Homepage A full text, statistics textbook that nearly every interested person who has had algebra can use. Choose from the table of contents at the right. Topics range from "Elementary Concepts" to splines.

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Tables and Constants

• Mathsoft Constants Descriptions of various mathematical constants including pi and e.
• Statman.Info Conversion Tables Conversion tables for length/distance, mass/weight, volume, hexadecimal to decimal, Roman numerals to decimal, and more.

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