Look, for example, at texmacs, of just use the Open Office "Math" package.
I think that there might be some texmacs extensions for solving algebraic equations, but I've not too sure about that point. I do know that there's an R extensions that lets you embed "active" R scripts in texmacs documents, which can be handy at times. (F.Y.I.: R is a data processing / statistical analysis language, based on the AT&T developed langauge, S. R is available from CRAN in France.)
Last edited by PTrenholme; 04-27-2006 at 08:00 AM.