Isermann Square
Loved this Jim Isermann op art. I couldn't (or wasn't willing) to get all the fine detail, but loved the skewed partition of the square. I think Isermann is using the harmonic partition (1st part is 1 long, 2nd is 2, ...) but you can change that in the function. x^2, sin(x)+1, abs(n+1-x) or abs(.5n-x) are some other functions to try.
