I didn't know it was possible to animate things using Maple. Thank you so, so, so much !!! :)

I didn't know it was possible to animate things using Maple. Thank you so, so, so much !!! :)

Thank you so so much !! :) 

Thank you so so much !! :) 

Thank you so much!!! It worked perfectly :)

Thank you so much!!! It worked perfectly :)

(I mean, your picture's shaded so that the space in the middle looks like an empty space. I don't know how to do that...) 

(I mean, your picture's shaded so that the space in the middle looks like an empty space. I don't know how to do that...) 

First of all, thank you for your answers. Both worked pretty well. Preben, the only problem with your answer is that I'm not familiar with those commands, but the solid I got is the one I'm expecting, so thank you so much!! 

Carl, thank you very much for your answer too. I got the solid, it's the one I'm expecting, but I think there's a problem with my maple. I'm using Maple 16, and you see, the problem I have is that the image Maple's showing me is not the same as yours. I don't really care about the color but I do worry about the solid showing "more volume", and by this I mean the "empty space" that should be, well, empty. How can I fix this? what are the options you're using for the plot?

Thank you!! :)

First of all, thank you for your answers. Both worked pretty well. Preben, the only problem with your answer is that I'm not familiar with those commands, but the solid I got is the one I'm expecting, so thank you so much!! 

Carl, thank you very much for your answer too. I got the solid, it's the one I'm expecting, but I think there's a problem with my maple. I'm using Maple 16, and you see, the problem I have is that the image Maple's showing me is not the same as yours. I don't really care about the color but I do worry about the solid showing "more volume", and by this I mean the "empty space" that should be, well, empty. How can I fix this? what are the options you're using for the plot?

Thank you!! :)