[strangetortoise]

I might misinterpret the parent, but I think the parents idea is more that it helps when deriving the math used in a lot of video game programming. (e.g. simplifying expressions in shader code, or deriving closed forms for intersection tests).

Where this might help is if you don't have a strong background in algrabra, and don't know all the properties of e.g. quaternions by heart. You'd implement essentially the answer that you get after playing with a computer algebra system

[okaleniuk]

Yes, exactly! A CAS lends you the skills of a mathematician once you already have the knowledge of a mathematician.