Epicycloid Generator

This interactive module allows you to simulate the rolling of a circle of radius r around another circle of radius 1.

Click with the mouse to determine the angle between the centers of the inner and outer circles. The computer will return the angle, and the angle through which a point on the edge of the outer circle has rotated.

Radius of Outer Circle: 0 <= <= 1

Marked Point on Outer Circle: degrees

Superimpose curve traced by point?

Return to: Parametrizing the Nephroid
Vic Reiner <reiner@math.umn.edu>
Frederick J. Wicklin <fjw@geom.umn.edu>
Last modified: Thu Apr 4 14:50:17 1996