That’s not what I was getting at. Yes you need to know what those things do, but you don’t need to have an academic knowledge of the workings of them.
e.g.
You don’t need to make sense of everything here :
As long as you understand this :
By User:Acdx - Self-made, based on Image:Right_hand_cross_product.png, CC BY-SA 3.0, File:Right hand rule cross product.svg - Wikimedia Commons
Don’t be put off by pages of seemingly unintelligible maths, the basic concepts alone will get you a long way.