Cartesian Coordinates
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Cartesian Coordinates
A coordinate
system in which the locations of points in space are expressed by
reference to three planes, called coordinate planes, no two of which are
parallel. Compare curvilinear
coordinates.
The three planes intersect in three straight lines, called coordinate
axes. The coordinate planes and coordinate axes intersect in a common point,
called the origin. From any point P in space three straight lines may be
drawn, each of which is parallel to one of the three coordinate planes. If A,
B, C denote these points of intersection, the Cartesian coordinates of P are
the distances PA, PB, and PC. If the coordinate axes are mutually
perpendicular, the coordinate system is rectangular; otherwise, oblique.
References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use