Freemat is an interpreted, matrix-oriented development environment for engineering and scientific applications, similar to the commercial package MATLAB. Freemat provides visualization, image manipulation, and plotting as well as parallel programming.
I've just tried the OS X version. There are some problems that make it unusable: - no Preferences dialog in the application menu. - I couldn't find a way to save the default script folder configuration (yet) - no Window menu, making it unwieldy to switch between all the Matlab-style windows (main, scripts, graphs). - MIGHT BE MY HARDWARE, but the plots take too much time to zoom in. So regrettably, I'm going to give it a thumbs down and choose something else until these features are fixed. Some good points: - graphic user interface, not Terminal. Very good. - easy to use interface, other than the mentioned problems.