When you were little, you might have played with a toy called a Spirograph.

This toy uses two wheels - a big hollow wheel and one of several little wheels - to draw what are called cyclocycloids.

But with computers, we aren't restricted by the limits of such a set.

This allows us to create any spiral pattern we want by rotating a point around another rotating point.

My version of this classic idea doesn't use wheels.

Instead, it uses an "arm" and a "wheel".

You can control the length and speed of the arm, and place the pen anywhere on the virtual wheel.

Then let it spin and see what you can create!