"ripley" == ripley <Nicolas> writes: ripley> Is there a equation system resolver in debian or linux in ripley> general? Basicly, I need to resolv equation systems or ripley> simplify very long and complicated equations. It's been a very long time since I've looked for stuff like this, but GNU Octave is a Matlab like system that might be what you are looking for. Cheers! Shyamal