Hey BlueThen. Another cool snippet.
I've recently taken a brief look at trigonometry and I've gotten down some of the basics (cosine, sine, tangent, and their opposites); and yeah, it's quite interesting.
However, I haven't actually started making picture window animations/games yet, but they seem to be a fine challenge. :d
And to answer your question, I think it'd be a good idea to release your documentation of algorithms.