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2,093 bytes added ,  21:55, 19 May 2010
Created page with 'File:lighterstill.jpgright|frame *Date: [http://www.wikipedia.org/wiki/14th_Century 14th century] ==Definitions== *1 obsolete : discord *2 a ...'
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*Date: [http://www.wikipedia.org/wiki/14th_Century 14th century]
==Definitions==
*1 obsolete : discord
*2 a : [[separation]] in [[time]]
:b : the [[degree]] or amount of separation between two points, lines, [[surfaces]], or objects
:c (1) : an extent of area or an advance along a route [[measured]] [[linear]]ly (2) : an extent of [[space]] measured other than linearly <within walking distance> d : an extent of advance from a beginning
:e : expanse
:f (1) : length of a race or contest <won at all distances> (2) : the full length (as of a prizefight or ball [[game]]) (3) : a long race <distance [[training]]>
*3 : the [[quality]] or [[state]] of being distant: as a : spatial remoteness
:b : [[personal]] and especially [[emotion]]al separation; also : reserve, coldness
:c : [[difference]], disparity
*4 : a distant point or region
*5 a : [[aesthetic]] distance
:b : [[capacity]] to [[observe]] dispassionately
— go the distance also last the distance : to complete a [[course]] of [[action]]
==Description==
'''Distance''' is a [[numerical]] description of how far apart objects are. In [[physics]] or everyday [[discussion]], distance may refer to a [[physical]] length, or an estimation based on other criteria (e.g. "two counties over"). In [[mathematics]], a distance [[function]] or metric is a generalization of the [[concept]] of physical distance. A metric is a function that behaves according to a specific set of rules, and provides a concrete way of describing what it means for elements of some space to be "close to" or "far away from" each other.

Distance cannot be negative. Distance is a [http://en.wikipedia.org/wiki/Scalar_(physics) scalar] [[quantity]], containing only a [[magnitude]], whereas a [http://en.wikipedia.org/wiki/Displacement_(vector) displacement vector] is a [http://en.wikipedia.org/wiki/Vector_(geometry) vector] quantity characterized by both [[magnitude]] and [http://en.wikipedia.org/wiki/Direction_(geometry,_geography) direction].

[[Category: General Reference]]