Another basket full of Awesomeness
So, I've always avoided Maxima because it doesn't have an interface, or so I thought.
There is a fantastic little emacs lisp module called Imaxima that renders Maxima output in LaTeX and embeds it into an interactive emacs mode. So far, I like it much more than Mathematica 5's bizarre, ugly and schizophrenic Motief interface. Admittedly, I haven't yet tried Mathematica's new QT interface, but I suspect it will probably be nicer-looking but more complicated. I prefer simple and direct, and Imaxima is just that.
And yes, after doing a bunch of machine-assisted algebra, you can make interactive 3d color plots directly from emacs. Yes, emacs really does do everything.
