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[[File:lighterstill.jpg]][[File:Long_Distance_Love.jpg|right|frame]]
[[File:lighterstill.jpg]][[File:Long_Distance_Love.jpg|right|frame]]
*Date: [http://www.wikipedia.org/wiki/14th_Century 14th century]
*Date: [https://www.wikipedia.org/wiki/14th_Century 14th century]
==Definitions==
==Definitions==
*1 obsolete : discord
*1 obsolete : discord
'''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''' 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].
Distance cannot be negative. Distance is a [https://en.wikipedia.org/wiki/Scalar_(physics) scalar] [[quantity]], containing only a [[magnitude]], whereas a [https://en.wikipedia.org/wiki/Displacement_(vector) displacement vector] is a [https://en.wikipedia.org/wiki/Vector_(geometry) vector] quantity characterized by both [[magnitude]] and [https://en.wikipedia.org/wiki/Direction_(geometry,_geography) direction].
[[Category: General Reference]]
[[Category: General Reference]]
