This program uses the actual math of a circle to create an ALMOST perfect circle, because I don't know that many digits of pi, and scratch doesn't let me copy and paste a million digits... :-) Just because I wanted to. More to come! CHECK OUT: - Parabolas - y=mx+b - y=mx+b, and z=mx+b (3D version, only a test!) - Factorial - Pythagorean theorem explanation - My Advanced Challenge (Of course...) - Perfect Triangle within a square - Perfect square outside a circle - Regular Pentagon Inside A circle (my favorite) - Spirals All can be found inside Toby's Math Studio. Request to enter in comments on this program, as this is the base of most of the others.