HEATKEYS

Math explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. For K-12 kids, teachers and parents.

Mathwarehouse.com--a website dedicated to Math lessons, demonstrations, interactive activities and online quizzes on all areas of geometry, algebra and trigonometry.

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Purplemath contains practical algebra lessons demonstrating useful techniques and pointing out common errors. Lessons are written with the struggling student in mind, and stress the practicalites over the technicalities. Links and other resources als...

YouTube is a place to discover, watch, upload and share videos.

MathWorks is the world’s leading developer of technical computing software for engineers and scientists in industry, government, and education

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Gateway to organizations and services related to applied mathematics, statistics, and computational science at the National Institute of Standards and Technology (NIST).

Usability testing has never been easier. The cheapest, fastest way to find out why visitors leave your website.

Since 1983, developing the free Unix style operating system GNU, so that computer users can have the freedom to share and improve the software they use.

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