polar coordinates

Noun

 * 1)  The coordinates of a point in a plane, measured as its Cartesian distance from the origin and the angle measured counterclockwise from the x-axis to a line joining the point to the origin.
 * 2)  A system of coordinates using such measurements to indicate position.
 * 3)  The coordinates of a point in three-dimensional space, measured as its Cartesian distance from the origin, the angle measured from the z-axis to a line joining the point to the origin, and the angle measured counterclockwise from the x-axis to this line.

Translations

 * Chinese:
 * Mandarin: 極坐標
 * Finnish: napakoordinaatit
 * French: coordonnées polaires
 * Hungarian: polár koordináta
 * Japanese: 極座標
 * Portuguese: coordenadas polares
 * Romanian:
 * Russian:
 * Swedish: polära koordinater