TITLE: What are you using for symbolic computation?
QUESTION [7 upvotes]: What are the pluses and minuses of different software packages? Anything new worth checking out?
I'm especially interested in open source packages.

REPLY [2 votes]: I suggest you to try Reduce, it is OpenSource and there are RPM packeges. It looks like this: 
alt text http://static.itmages.ru/i/10/1012/h_1286887665_4af06aa049.png