Difference between revisions of "Sphere"
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[[Image:Sphere-wireframe.png|right|thumb|200px|A [[wireframe]] sphere.]] | [[Image:Sphere-wireframe.png|right|thumb|200px|A [[wireframe]] sphere.]] | ||
A '''sphere''' is the set of all points in three-dimensional [[euclidean space]] ('''R'''<sup>3</sup>) which are at a fixed distance ''r'' (called radius) away from a point called the center. | A '''sphere''' is the set of all points in three-dimensional [[euclidean space]] ('''R'''<sup>3</sup>) which are at a fixed distance ''r'' (called radius) away from a point called the center. | ||
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| + | A generalization of it is the set of points which in some vector space is, according to a specified norm, equidistant. | ||
[[category:geometry]] | [[category:geometry]] | ||
Revision as of 16:55, April 20, 2009
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.
