Wolfram MathWorld 5/6/14 Formerly: Eric Weisstein's Encyclopedia of Mathematics

This is a compendium of mathematical definitions, formulas, figures, tabulations, and references. It is intended for a broad spectrum of readers with a wide range of mathematical backgrounds and interests. The text and all the equations and figures are searchable. The entries are extensively cross-linked and cross-referenced, some with external Web links. Standard mathematical references are given at the end of most entries to facilitate additional reading. The work also contains a large number of explicit formulas and derivations. Because of the alphabetical listing of entries in the encyclopedia, neither table of contents nor index are included. Most articles are followed by a "see also" list of related entries for quick navigation. (Updates vary)

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Eric W. Weisstein; Wolfram Alpha

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