Maxima is a Common Lisp implementation of MIT's Macsyma system for computer based algebra. It features plotting over the network via netmath, computations over the network, extensive testing on a large array of problems, a source level debugger for maxima code, ease of extension in fundamentally new ways, access to Common Lisp and portability to many systems.
Maxima is a free computer algebra system, written in Lisp and released under the GNU General Public License. The software runs on all POSIX platforms such as Unix, BSD, and Linux as well as under Microsoft Windows.