# Projecting Points on Spheres to Lower Dimensions

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Take points at random inside the sphere (or hypersphere) in dimensions, and project them to that sphere. Now project that set of points to either the interval , the unit disk, or the unit 3D ball (the interior of the 3D unit sphere) by dropping all but one, two, or three coordinates.

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Contributed by: George Beck (March 2011)

Open content licensed under CC BY-NC-SA

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