Hello guys, I don't know where else to post this but here goes. I'm going to be catching up on a looot of math this year. Unfortunately a lot of the math books that I'll be using only provide the answers to odd numbered questions. And the answers that they do provide a lot of the times "do not show the work". Is there software out there that will provide detailed proofs and solutions to most precalculus-calculus math problems? Thanks.