
Definition of Polar coordinates
1. Noun. (mathematics) The coordinates of a point in a plane, measured as its Cartesian distance from the origin and the angle measured anticlockwise/counterclockwise from the ''x''axis to a line joining the point to the origin. ¹
2. Noun. (mathematics) The coordinates of a point in threedimensional space, measured as its Cartesian distance from the origin, the angle measured from the zaxis to a line joining the point to the origin, and the angle measured anticlockwise from the xaxis to this line. ¹
¹ Source: wiktionary.com
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