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coordinate system
(redirected from System of coordinates)

   Also found in: Wikipedia 0.01 sec.

coordinate system

Arrangement of reference lines or curves used to identify the location of points in space. In two dimensions, the most common system is the Cartesian (after René Descartes) system. Points are designated by their distance along a horizontal (x) and vertical (y) axis from a reference point, the origin, designated (0, 0). Cartesian coordinates also can be used for three (or more) dimensions. A polar coordinate system locates a point by its direction relative to a reference direction and its distance from a given point, also the origin. Such a system is used in radar or sonar tracking and is the basis of bearing-and-range navigation systems. In three dimensions, it leads to cylindrical and spherical coordinates.



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Much attention in this context is given to scientific problems of enhancing the accuracy of the terrestrial gravitational field and the accuracy characteristics of the accepted system of coordinates.
A system of coordinates does organize the paintings (the horizontal direction of the semicontinuous curlicues from left to right, the vertical parallel lines of the runoffs), but this serves only to heighten the dynamic tilt of the loops themselves.
Let us define a system of coordinates in which the external magnetic field and the initial polarization vector of the neutrons are directed along the axis z.
 
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