## ::Distance

### ::concepts

**Distance**::between ''x''::''y'' Point::space ''A''::points ''B''::**distance** Right::''d''

{{#invoke:Hatnote|hatnote}}

**Distance** is a numerical description of how far apart objects are. In physics or everyday usage, 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 is a concrete way of describing what it means for elements of some space to be "close to" or "far away from" each other.
In most cases, "distance from A to B" is interchangeable with "distance between B and A".

**Distance sections**

Intro Mathematics Distance versus directed distance and displacement Other \"distances\" See also References

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