>
> http://en.wikipedia.org/wiki/GNU_Maxima
>
By the way, please note that Maxima is *not* a GNU project (though it is
released under GPL), and so should not be referred to as "GNU Maxima".
The link above works for convenience (it is a redirect); another redirect
(which I just created) is http://en.wikipedia.org/wiki/Maxima_CAS
-s