PLEASE READ. ------------------- Press space for a new shape. Accuracy is very important. Don't use below 50 or so unless you're curious. What we do here with the 'accuracy' is modular arithmetic. Supports decimals, but Scratch's sliders don't. Sample program using decimals supplied (press 'a'), use turbo mode and an accuracy of 100 with it. I personally recommend: 49 modulo 200 500 modulo 300 300 modulo 300 99 modulo 200 but there's loads of others.
The shapes inside are given by the parametric equation: ((a)cos(t)-cos(t(a)),(a)sin(t)-sin(t(a))) where the 'Times Tables' variable is 'a' This is a special case of the epicycloid equation: ((a+b)cos(t)-cos(t(a+b)/b),(a+b)sin(t)-sin(t(a+b)/b)) where b=1, then adjusted slightly to turn 'a+1's into 'a's, which better fits this method.