The Möbius strip or band is a topological object and so it does not have a
defined geometric shape. However, this particular version is rather pleasing.
Parameterization
This parameterization creates a Möbius strip of width that springs from
a centre circle of radius that lies in the
XY plane and is centered at (0, 0, 0).
The parameter runs around the strip while moves from one edge to
the other. It is easy to see that there is a single boundary.