Question: How do I plot parametric surfaces?

      I've searched quite extensively across the internet and cannot seem to find my answer, even on this forum or in maple help.

     I'm trying to plot parametric surfaces using the (u,v) notation or in other words

cos(v)i + sin(v)j + (u)k

so have tried in maple as such:

cylinder := (u,v) -> [cos(v), sin(v), u];

but when I plot3d that, I either get a z range problem, come up with only a plane, or get absolutly nothing (mind you, I don't have axis in mine right now, so I haven't checked to see if those would show up, i'm willing to bet yes).

My plot3d looks like:

plot3d( cylinder(u,v), u = 0..30, v = 0..2Pi);

which yields a blank graph. I've tried multiple variations and am unsure what I'm doing wrong. It should be said that I'm using maple 10 currently.

Any help is very much appreciated as this is the only part of a project I'm stumbling with.

Thanks

Erich