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This question is too vague to give a proper answer. The system was devised by Rene Descartes.
The Cartesian Coordinate System was discovered by Rene Descartes.
Cartesian coordinate system is used for map making, GPA for cars.
The z axis in the vertical axis in the Cartesian Coordinate System.
The Cartesian coordinate system was invented in the 17th century. The idea of this system was developed in 1637.