Spirographing v1.0

Description

This edutaining program lets you graph curves of the kind created by the popular "Spirograph" toy on your TI-84 Evo. In math terms, it produces parametric curves in the epicycloid and hypocycloid families. The user controls the value of R, r, A, the number of revolutions, and the color of the graph, and this program graphs it. This program includes six demo curves, and you can modify the parameters of any of the demos to experiment with your own designs. When you create a design you like, you can export to any of the parametric equations so you can explore your curve in the TI-OS. A great way for students to see the connection between math and art!