SYMDIFF is a tool for symbolic differentiation of mathematical expressions. It includes Python and Tcl interfaces.
Symja is a pure Java library for symbolic mathematics. It supports arbitrary precision integers, rationals and complex numbers, polynomials, differentiation, integration, pattern matching, linear algebra, solvers, and more.
Tools for packaging RDF data in the AWD cloud.
Talks to your 8-bit Apple computer over serial, ethernet, or audio links.