If you have a slow connection or a slow computer, consider the (Small) option in the examples.

The following elementary examples were produced from Maple output.

Knots (Small)	Moebius Strip (Small)	Torus (Small)
Catenoid (Small)	Helicoid (Small)	Shells (Small)
Spherical Harmonics (Small)	Klein Bottle (Small)	Tubes (Small)