[Dimensio]

and one of them took advanced math courses for fun in college.

He should try Engineering calc. Four semesters of advanced math. Frequent tests, even more frequent tests, no calculators allowed.

After surviving that mess, I get sick when I see an integral signal, and I am good with math. On the plus side, it made every math course that I took after that (Linear Algebra, Finite, Prob & Stat) a walk in the park.

[From many - one.]

Too late now, he's been out of school for something like 20 years. Math was strictly recreational and he stopped when he got his first non A grade.

I think we're slightly ot here.

Got any evolution questions?