From Conservapedia
This is an old revision of this page, as edited by Stitch75 (Talk | contribs) at 12:55, 20 April 2009. It may differ significantly from current revision.

Jump to: navigation, search
A wireframe sphere.

A sphere is the set of all points in three-dimensional euclidean space (R3) which are at a fixed distance r (called radius) away from a point called the center.

A generalization of it is the set of points which in some vector space is, according to a specified norm, equidistant.