See Also: Widmanstatten figures(medicine)
single figures(dictionary)
double figures(dictionary)
Purkinje's figures(medicine)
fortification figures(medicine)
Figures - Synchro Swimming(gambling)
coordinate(1)(dictionary)
Coordinate(medicine)
coordinate(2)(dictionary)
coordinate 3, adjective(dictionary)

coordinate system (sh) and Widmanstatten figures (medicine)


coordinate system (sh)




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 Rene 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.


Widmanstatten figures (medicine)


widmanstatten figures
<chemical> Certain figures appearing on etched meteoric iron; so called after A. B. Widmanstatten, of Vienna, who first described them in 1808. See the Note and Illust. Under Meteorite.

Source: Websters Dictionary