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    http://dlmf.nist.gov/   » Digital Library of Mathematical Functions - 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.

    http://www.equationsheet.com/   » EquationSheet.com - Searchable directory, arranged by field, of equations, constants, symbols and SI units. Also features LaTEX utilities, software links.

    http://geom.math.uiuc.edu/docs/reference/CRC-formulas/   » Geometry Formulas and Facts - 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.

    http://www.dpi.state.wi.us/dpi/standards/mathglos.html   » Glossary of Math Terms - Explains commonly used words specialized to this field. Includes examples and some graph illustrations.

    http://www.ercangurvit.com/   » Math Assistance - Lists rules and formulas for a number of mathematical subjects, such as plotting graphics, functions, factoring, derivatives, integrals, matrices, vectors, and numerical analysis. In English, French and Turkish languages.

    http://www.mathreference.com/   » The Math Reference Project - An electronic archive of articles by Karl Dahlke on topics ranging from high school geometry up to graduate level topology.

    http://www.math.niu.edu/~rusin/known-math/welcome.html   » Mathematical Atlas - A topical guide to modern mathematics that explains the subdisciplines. Includes graphics that represent their relative size and relationship.

    http://www.educationindex.com/math/   » Mathematics Resources - This site comprises a large number of links to matheamtical resources, dedicated to various topics.

    http://www.math2.org/   » Math2.Org - Formerly Dave's Math Tables. Mathematical tables on-line and downloadable.

    http://www.research.att.com/~njas/sequences/   » On-Line Encyclopedia of Integer Sequences - Identify a sequence by entering few terms in the sequence. Additional information includes examples, formulas, and related links.

    http://planetmath.org/   » PlanetMath - A collaborative encyclopaedia with entries contributed under the GNU Free Documentation License.

    http://www.mathacademy.com/pr/index.asp   » Platonic Realms - Online resource for the mathematics community: links library, bookstore, quotes, and online articles.

    http://polysum.tripod.com/   » Summation Formulae - For polynomials of degrees up to 50, generated using the Euler-Maclaurin method.

    http://en.wikipedia.org/wiki/Mathematics/   » Wikipedia: Mathematics Section - Free encyclopedia. Cover number systems, different math fields, foundations, history, applications, and famous problems.

    http://functions.wolfram.com/   » Wolfram: Mathematical Functions - Includes advanced formulas and visualizations of various equation, such as elliptical curves.

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