Cylindrical Surfaces
These are generated when a curve on a plane is moved parallel to a line.
> with(plots):
> cylinderplot(3,theta=0..2*Pi,z=-2..2,scaling=constrained,axes=NORMAL);
> plot3d(y^2,x=-5..5,y=-5..5, axes=boxed);
> plot3d(sin(x),x=-5..5,y=-5..5, axes=boxed);
> plot3d(exp(-y),x=-5..5,y=-5..5, axes=boxed);
>