3-D graphing in Calculus

This sphere was created on Grapher which is part of the Mac OS X bundle from Apple. It can be manipulate and rotated.

This is a hyperboloid of one sheet also done on Grapher.  We did several other graphs such as an ellipsoid, a hyperboloid of 2 sheets, an elliptic cone, an elliptic paraboloid, and a hyperboloid paraboloid.