Just click the green flag. Please consider checking out my other math projects in my math studio that this project is in! If you go inside the project, you can change the point set. Maybe I'll make a Fourier Series out of this. The Scratch Cat has been represented here with a set of 74 points (the first and last of which are the same). A pair of parametric equations defined in 73 segments between the 74 points are used to connect the points. The parametric equations are x and y as functions of t for time. If this is all too mathematical, don't worry about it unless you plan to take calculus.