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distance

Also known as Euclidian distance, Euclidean distance, distant, straight-line distance

thumb|275px|A board showing distances near Visakhapatnam, India

AI overview

Distance is the measure of how far apart two things are from each other. It matters because knowing distances helps us navigate, plan travel, and understand the space between places and objects in our daily lives.

AI-generated from the Wikipedia summary — may contain errors.

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Image: A distância entre dois pontos.png

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Commons category: Distance
Stack Exchange tag: stackoverflow.com/tags/distance
equivalent class: schema.org/Distance

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~13 min read

Article

21 sections

Contents

Distances in physics and geometry
Straight-line or Euclidean distance
Measurement
Shortest-path distance on a curved surface
Effects of relativity
Other spatial distances
Metaphorical distances
Statistical distances
Edit distances
Distance in graph theory
In the social sciences
Mathematical formalization
Distance between sets
Related ideas
Distance travelled{{anchor|Travelled|Traveled}}
Displacement and directed distance{{anchor|Displacement|Directed distance}}
Signed distance
See also
Library support
References
Bibliography

thumb|275px|A board showing distances near Visakhapatnam, India

Distance is a numerical or occasionally qualitative measurement of how far apart objects, points, people, or ideas 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"). The term is also frequently used metaphorically to mean a measurement of the amount of difference between two similar objects (such as statistical distance between probability distributions or edit distance between strings of text) or a degree of separation (as exemplified by distance between people in a social network). Most such notions of distance, both physical and metaphorical, are formalized in mathematics using the notion of a metric space.