the class I took was called
"Mathematics in Art"

It wasn't pre-calc and hardly practical, we mostly explored ideas that artists have used over the vast centuries.

For instance, the square root of 2 otherwise known as Phi (explored briefly and non-chalently in David Brown's The Davinci Code) was imployed by many Greek artists and then again during the Rennaisance. It was considered to be the number closest to God and perfection; though it was an irrational number and consequently unacchieavable by man kind it was still considered the scale on which beauty could be compared.