The PC Lab in PSB 208 has the computer software wxMaxima installed. Maxima is a fairly complete computer algebra system written in lisp with an emphasis on symbolic computation. It is based on DOE-MACSYMA which was developed over several decades starting in the 1960's. It is licensed under the General Public License or GPL (see Wikipedia for more information). Its abilities include symbolic algebra, calculus, plotting, and differential equations. It also has nice animation features.
The software is available for free on Windows, Mac and Linux computers:
(Download and install the latest version of wxMaxima.)