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| en:speech:book:mathematics [2024/08/20 11:10] – brahmantra | en:speech:book:mathematics [2024/08/20 11:15] () – removed brahmantra |
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| ====== MATHEMATICS ====== | |
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| * [[:hi:magnitude|magnitude]] | |
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| ====== DEFINITE DIMENSIONS ====== | |
| * [[:en:scientific_roots_of_magnitude | Scientific roots of magnitude ]] | |
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| In 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) because two coordinates are needed to specify a point on it – for example, both a latitude and longitude are required to locate a point on the surface of a sphere. A two-dimensional Euclidean space is a two-dimensional space on the plane. The inside of a cube, a cylinder or a sphere is three-dimensional (3D) because three coordinates are needed to locate a point within these spaces. | |
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