Displays the projection and intersection of a hypercube in 3 dimensions. Includes a thorough discussion of the applet. Octahedron Interactive animation of an tetrahedron with the central octahedron missing. The Geometry Applet Shows an icosahedron which can be turned and moved. Spirograph Draws a spirograph from two slowly moving circles.
Cycloids Demonstrates how to draw trachoids by spinning a wheel.
Both regular cycloids, hypocycloids as well as epicycloids can be drawn. Curve Demonstrates a Hermite, Bezier or B-spline curve based on four points. Groove Draws Bezier curves. Bezier Splines Demonstrates the drawing of a Bezier curve between two endpoints and with two additional points in between. Bezier Curve Plots a Bezier curve based on arbitrarily many points.