God is math, math is God!
I left more comments at the original post. (Hello again, @geke!)
No, I did not (could not) read all those formulas. I woke up with a headache (nothing uusual there) and life is too short to try again to comprehend formulas... I "got it," in high school, but rarely managed to balance a simple algebraic equation.
I was a straight-A student if not for math. I had to work arduously just to achieve a C in Algebra. But I got an A in Geometry!