 Summation Formulae - http://polysum.tripod.com/ For polynomials of degrees up to 50, generated using the Euler-Maclaurin method. |
 Wolfram: Mathematical Functions - http://functions.wolfram.com/ Includes advanced formulas and visualizations of various equation, such as elliptical curves. |
 On-Line Encyclopedia of Integer Sequences - http://www.research.att.com/~njas/sequences/ Identify a sequence by entering few terms in the sequence. Additional information includes examples, formulas, and related links. |
 Abacus: Mystery of the Bead - http://webhome.idirect.com/~totton/abacus/ History of the abacus and an instruction manual on its use. |
 Glossary of Math Terms - http://www.dpi.state.wi.us/dpi/standards/mathglos.html Explains commonly used words specialized to this field. Includes examples and some graph illustrations. |
 Mathematics Resources - http://www.educationindex.com/math/ Offers a large number of links to mathematical resources, dedicated to various topics. |
 Platonic Realms - http://www.mathacademy.com/pr/index.asp Online resource for the mathematics community: links library, bookstore, quotes, and online articles. |
 Mathematics Notes - http://pages.prodigy.net/jmiller.cb/math.html Exposition of the basic concepts and theory of various subjects including matrix theory, calculus, modern abstract algebra, linear algebra, plane analytic geometry and solid analytic geometry. |
 The Math Reference Project - http://www.mathreference.com/ An electronic archive of articles by Karl Dahlke on topics ranging from high school geometry up to graduate level topology. |
 EquationSheet.com - http://www.equationsheet.com/ Searchable directory, arranged by field, of equations, constants, symbols and SI units. Also features LaTEX utilities, software links. |
 Mathematical Atlas - http://www.math.niu.edu/~rusin/known-math/welcome.html A topical guide to modern mathematics that explains the subdisciplines. Includes graphics that represent their relative size and relationship. |
 Math2.Org - http://www.math2.org/ Formerly Dave's Math Tables. Mathematical tables on-line and downloadable. |
 PlanetMath - http://planetmath.org/ A collaborative encyclopaedia with entries contributed under the GNU Free Documentation License. |
 Geometry Formulas and Facts - http://geom.math.uiuc.edu/docs/reference/CRC-formulas/ An excerpt from the 30th Edition of the CRC Standard Mathematical Tables and Formulas, covering the area of Geometry (minus differential geometry), by Silvio Levy. |
 Sin and Cos in Surds - http://www.jdawiseman.com/papers/easymath/surds_sin_cos.html Sin and Cos expressed in square roots, simplified with rationalised denominators. |
 Wikipedia: Mathematics Section - http://en.wikipedia.org/wiki/Mathematics Free encyclopedia. Covers number systems, different math fields, foundations, history, applications, and famous problems. |
 Numerical Prefixes - http://phrontistery.info/numbers.html Tables for Greek and Latin number values alone and as a part of other words. |
 Digital Library of Mathematical Functions - http://dlmf.nist.gov/ This mockup gives an idea of the current ideas about the design and organization of the new Digital Library; these ideas are, of course, subject to change. Content only is only available in a few places. |