Science, Math, Reference - The Math Reference Project. An electronic archive of articles by Karl Dahlke on topics ranging from high school geometry up to graduate level topology.
Science, Math, Reference - 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.
Science, Math, Reference - Digital Library of Mathematical Functions. This mockup gives an idea of the current ideas about the design and organization of the new Digital Library.