You were understood correctly. That is the effect of having the same seed for every random component. Have you tried changing the seed numbers as i said above? With real random numbers the top and bottom diameters will become interior and exterior boundaries.
On Apr 5, 7:20 am, Taylor <[email protected]> wrote: > Maybe i didnt express accurately,i mean , when i did the defination as > David's picture, the random point just emerged at the surface of the > cylinder, not inside.That's the point. The 65 I set just to control > the diameters of the circle,top and bottom.So I really want to know > how to set random point inside a circle.
