Found that this site interesting, as a first time user I have know been on this site for almost 2 hours. there is a lot of information to cover. This would be a could companion program to run while in a finite math class.
I found it very difficult to follow. I downloaded the demo and felt lost to try to figure out how to use it. I is possible that because I don't have the full version I do not have access to some of the material that would make the site user friendly.