Shows a projection of a hypersphere onto the plane. It uses a 2x4 matrix to convert 4D points into 2D points. Use the arrow keys
and the mouse to rotate it in 4D.
There are a circle of points, each one corresponding
to a number. Lines are drawn between points according
to rules. Create interesting shapes like cardioids
This program rolls (invisible) shapes around other
(invisible) shapes and traces a point on the shape as
it moves along. Create interesting shapes like cardioids.