I hope that this is a simple algorithm, but I have to angles along a degree system with 0 up, 90 right, -90 left, and 180 down (for drawing a circle), and two angles from zero. I have one angle that I want to go to the other angle, but I need to know if I go counterclockwise or clockwise to get from it...like I have a 90 degree angle and a -170 degree angle and I want to the program to figure out which way to go (like negative or postitive).