Bour's Minimal Surface and Variations
This Demonstration shows Bour's minimal surface for , , and , with variations for other values.
A. Gray, Modern Differential Geometry of Curves and Surfaces with Mathematica, 2nd ed., Boca Raton, FL: CRC Press, pp. 732–733, 1997.
R. Maeder, Programming in Mathematica, 3rd ed., Reading, MA: Addison–Wesley, pp. 29–30, 1997.