Random Points on a Sphere

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There are several ways to pick random points on a sphere. Using points of the form , where and , gives an evenly distributed set of points. Using spherical coordinates, , causes too many points to cluster at the poles. Picking points at random in a cube around the sphere and normalizing, , creates too many points that come from the corners of the cube.

Contributed by: Ed Pegg Jr (March 2011)
Open content licensed under CC BY-NC-SA




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