Computer Algebra Systems basically help you do math. If you want to integrate an expression, or solve a system symbolically, you can, of course, sit down and do that with pen and paper. Or you can "ask" a CAS to do this for you.

This is much easier than it sounds. And it's fun too: https://wordsandbuttons.online/sympy_makes_math_fun_again.ht...

I suppose, a lot of not games but game developers use CASes and we don't even know :-)