With all the complex numbers, exps, logs, sins, coss in the code I wonder if this is the formula? (Not that I understand a word of the link, but I know you are a matematician)
http://vision.stanford.edu/~birch/projective/node14.html
"The five senses obstruct or deform the apprehension of reality."
Jorge L. Borges?
"Premature optimization is the root of all evil in programming."
Donald Knuth, repeating C. A. R. Hoare
"To die for a religion is easier than to live it absolutely"
Jorge L. Borges