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mathematical technique > frame of reference > coordinate system > spherical coordinate
astronomical technique > astrometry > coordinate system > spherical coordinate

Terme préférentiel

spherical coordinate  

Définition(s)

  • In mathematics, a spherical coordinate system is a coordinate system for three-dimensional space where the position of a point is specified by three numbers: the radial distance of that point from a fixed origin, its polar angle measured from a fixed zenith direction, and the azimuthal angle of its orthogonal projection on a reference plane that passes through the origin and is orthogonal to the zenith, measured from a fixed reference direction on that plane. It can be seen as the three-dimensional version of the polar coordinate system. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Spherical_coordinate_system)

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http://data.loterre.fr/ark:/67375/MDL-KQL8L7VC-9

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RDF/XML TURTLE JSON-LD Dernière modif. 24/04/2023