Plotting the circular cylinder

> implicitplot3d('x'^2+'y'^2=1,'x'=-1..1,'y'=-1..1,'z'=-0.5..2,scaling=constrained,axes=frame,labels=['x','y','z']);

Notice the quotes around the x, y, and z. This is to "delay the evaluation" of these names, because they are assigned to . , and . Without the quotes, Maple would produce an error message.

>