[X,Y,Z] = CYLINDER(R,N) forms the unit cylinder based on the generator
curve in the vector R. Vector R contains the radius at equally
spaced points along the unit height of the cylinder. The cylinder
has N points around the circumference. SURF (X,Y,Z) displays the
[X,Y,Z] = CYLINDER(R), and [X,Y,Z] = CYLINDER default to N = 20
and R = [1 1].
Omitting output arguments causes the cylinder to be displayed with
a SURF command and no outputs to be returned.
See also SPHERE21SLDWP.