octave: matlab's cousin
since we all like free things, and open source, here is the link to matlab's cousin, octave:
http://www.gnu.org/software/octave/
i've never used it, but i'd feel like a stud if i knew how.
GNU Octave is a high-level language, primarily intended for numerical computations. It provides a convenient command line interface for solving linear and nonlinear problems numerically, and for performing