I would start with vectors and physics. Note that there is some basic calculus involved in both of those. The Wikipedia is a bit dense, but if you take the ti

I would start with vectors and physics. Note that there is some basic calculus involved in both of those. The Wikipedia is a bit dense, but if you take the time to follow links to concepts that you aren't familiar with you should be good. https://en.wikipedia.org/wiki/Vector_calculus https://en.wikipedia.org/wiki/Vector_calculus You might have done a little bit of calculus with High School trig without knowing it. Sometimes Trig is mixed in with Analysis for some nuanced reasons. I would check out the Khan academy post for a basic grounding in calculus. https://www.khanacademy.org/math/calculus-home/limits-and-continuity-calc/limits-introduction-calc/v/introduction-to-limits-hd https://www.khanacademy.org/math/calculus-home/limits-and-co...