How to visualize catenoid surface using matlab?

please help me for the visualisation of catenoid surface using matlab (with syntex),

Answer 1

[Matt J]

Here is a very similar example from the documentation for the cylinder() command

t = 0:pi/10:2*pi;
r = 2 + cos(t);
[X,Y,Z] = cylinder(r);

surf(X,Y,Z)