Interactive rolling hypocycloids'in kopyası
An interactive version of the rolling hypocycloids described by John Baez (and others) at:
http://johncarlosbaez.wordpress.com/2013/12/03/rolling-hypocycloids/
Javascript and GeoGebra versions at:
http://www.malinc.se/m/RollingHypocycloids.php
In order to fit inside each other, each hypocycloid rotates around a point that lies on the periphery of a circle whose midpoint is the centre of the next (larger) hypocycloid.
Move the white dot!
The Javascript version is a tad slow. If possible try with Java Applet, or download the worksheet.