A surface of constant Negative Curvature obtained by twisting a Pseudosphere and given by the
parametric equations

(1) | |||

(2) | |||

(3) |

The above figure corresponds to , , , and .

**References**

Geometry Center. ``Dini's Surface.'' http://www.geom.umn.edu/zoo/diffgeom/surfspace/dini/.

Gray, A. *Modern Differential Geometry of Curves and Surfaces.* Boca Raton, FL: CRC Press, pp. 494-495, 1993.

Nordstrand, T. ``Dini's Surface.'' http://www.uib.no/people/nfytn/dintxt.htm.

© 1996-9

1999-05-24