Dimension - Wikipedia
https://en.wikipedia.org/wiki/Dimension
OverviewIn mathematicsIn physicsIn computer graphics and spatial dataMore dimensionsList of topics by dimensionSee alsoFurther readingIn physics and mathematics, the dimension of a mathematical space (or object) is informally defined as the minimum number of coordinates needed to specify any point within it. Thus, a line has a dimension of one (1D) because only one coordinate is needed to specify a point on it – for example, the point at 5 on a number line. A surface, such as the boundary of a cylinder or sphere, has a dimension of two (2D) …
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