Set Geometery is mathematics dealing with geometrical objects as sets of points. This allows us to do interesting things with them, in particular, add them! Adding "shapes"- sets- is defined in the technical appendix. Intuitively, you grab one shape at the origin and drag it all around the other. This project allows you to add some simple shapes. Download with turbo for best performance. Coauthor credit to Infinitygirl314159. Technical appendix: Let S and T be sets of points. Then S+T is defined as {s + t: s in S, t in T} This definition invokes adding points; how do we do that? Like adding vectors, i.e. if p = (x1, y1) and q = (x2, y2), p + q = (x1 + x2, y1+y2)