Cartesian coordinate system
n.
1. A two-dimensional coordinate system
in which the coordinates of a point in a plane are its distances from two perpendicular lines that
intersect at an origin, the distance from each line being measured along a straight line parallel
to the other.
2. A three-dimensional coordinate system in which the coordinates of a point in space
are its distances from each of three perpendicular lines that intersect at an origin.
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