Anyone know of any open source alternatives to MatLab, Maple, Mathematica, etc.?
FreeMat and Octave are two Matlab-ish programs that I've used.
octave is pretty good.
I created a thread awhile back dealing with the best math-related OSS available (in my opinion):
Maxima is mostly written in LISP and it's possible to use TeXmacs or Emacs to view it's output in LaTeX. Take a look at some of the screenshots I made.
Maxima is best suited as a replacement for Mathematica and Maple as it's missing a few (many) features that Matlab offers.
I used octave not to long ago to do some control analysis. I'll have to check out maxima.
Octave is decent, but it doesn't have CAS functionality, like Maxima does. I would suggest that Octave be used as Matlab replacement.
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