Hi David, Thank you for your suggestion. I tried it on Maple10 and successfully plotted the circle & triangle. But I do find this method difficult -- I had wanted something simpler like the way I draw objects in Powerpoint, freely scale and move the objects around on the screen. I'm saying this because if I need to create many geometry diagrams, using the Maple10 "plot" command would take a long time to generate them. For instance, if I need more complicated diagrams like drawing a triangle within a circle, do some shading within the triangels, etc, I would imagine very complicated commands in Maple10 to do that. Could you recommended any other methods for what I'm trying to do? Thks, Shuh Lit

Hi David, Thank you for your suggestion. I tried it on Maple10 and successfully plotted the circle & triangle. But I do find this method difficult -- I had wanted something simpler like the way I draw objects in Powerpoint, freely scale and move the objects around on the screen. I'm saying this because if I need to create many geometry diagrams, using the Maple10 "plot" command would take a long time to generate them. For instance, if I need more complicated diagrams like drawing a triangle within a circle, do some shading within the triangels, etc, I would imagine very complicated commands in Maple10 to do that. Could you recommended any other methods for what I'm trying to do? Thks, Shuh Lit