Definition of surface, in parametric
equations:x(u,v) = cos(á) sinh(v) sin(u) + sin(á)
cosh(v) cos(u) where: - á is a parameter ranging from 0 to 2ð, giving the 80 frames shown here with a step of ð/40
- u ranges from 0 to 3ð, resulting in the three folds of the surface
- v ranges from -ð/2 to ð/2, defining the diameter of the "cylinder" within which the surface lies.
Note: The values ð/2 and 3ð/2 for á result in a
Weisstein, Eric W. |

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