Why use complicated math to answer a simple problem? [on hold]

Why use complicated math to answer a simple problem? [on hold]

I hear of game programmers talking on Calculus, Linear Algebra,
Trigonometry, etc. Why?
As a computer programmer myself I have actually CUT corners, and got what
needed to be done without anything above the most rudimentary, elementary
basics of arithmetic.
Why implement extremely complicating algorithms to solve such simple
problems?
For example, a character's rotation animation can be measured by an array
of singular values, and the result will be just as perfect as if using
algebraic equations.
So my question is simple:
Why employ extremely advanced fields of math, mathematics, equations,
algorithms, and computation principles to solve otherwise rudimentary math
problems?
The same applies for 3-D graphics; a rotation matrix can be implemented in
a plain array of values, where one points to the next, or any
corresponding data type.
And this doesn't have to be limited to computer programming either.
It just sickens me how people blab, brag, and talk about advanced math
when I am terrible at math, and I still employ my own computer programs
that are fully functioning, playable, enjoyable, and non-glitchy, all by
my dear self.