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Symmetry methods for Differential Equations: Online Free Resources

Lie symmetry analysis of differential equations was initiated by the Norwegian mathematician Sophus Lie (1842 - 1899). Today, this area of research is actively engaged. In this course, we trace the mathematical idea of symmetry and provide the salient fea

Online Free Resources

Mathworld

A free resource from Wolfram Research based on Eric Weissteinn CRC Concise Encyclopedia of Mathematics.

Math Forum@Drexel

An open website of problems and puzzles, online mentoring, research, team problem solving, collaborations, and professional development.

NISTDigital Library of Mathematical Functions

A free electronic copy of NIST Handbook of Mathematical Functions. Contains notation, properties, applications, and computation.

S.O.S. Mathematics

Free, online resource offering quick summaries of mathematical topics, tables, and formulas.