A cycloid is the curve traced by a point on a circle as the circle rolls along a line. Roberval (1634) found the velocity vector (this is modern terminology) that describes both the tangent direction for a point on the cycloid, and the velocity of the point moving along the curve as the circle rolls at a constant rate. Susan Addington, Created with GeoGebra 



Last updated November 29, 2010 Copyright 200910 David Dennis and Susan Addington. All rights reserved. 