I’d argue that most if not all of the math that I learned in school could be distilled down to analyzing problems in the correct coordinate system or domain! The actual manipulation isn’t that esoteric once you get in the right paradigm. And those professors never explained things at that kind of higher theoretical level, all I remember was the nitty gritty of implementation. What a shame. I’m sure there’s higher levels of mathematics that go beyond my simplistic understanding, but I’d argue it’s enough to get one through the full sequence of undergraduate level (electrical) engineering, physics, and calculus.