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Cartesian coordinate system

A geometrical referencing system used in CNC programing to establish point-to-point positions and movements. The two dimensional Cartesian coordinate grid shown below has two axes, x and y. Where the axes cross is the origin and has a numeric value of X0 and Y0. All of the points shown are referenced from that origin. In Cartesian coordinates the points below are, P=X4 Y3, Q=X-1.3 Y2.5, R=X-1.5 Y-1.5, S=X3.5 Y-1, and T=X4.5 Y0. The axes divide the plane into four quadrants: P is in the first quadrant, Q in the second, R in the third, and S in the fourth. T is on the positive x-axis. See also axis, origin, coordinate, Descartes

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