I've been looking for a free download of a programming language that is easy to use and handles large numbers for a number theory problem I'm working on. I will report my results here after I use it. My TI isn't powerful enough and my other programmable calculator that I downloaded, graphcalc, doesn't do matrices. I'm guessing I need something that handles 30 digit integers, but the more the better. And of course it needs to handle matrices. Any suggestions? Thank you.