Page 177 cartesian co-ordinates (Maths) A system of co-ordinates in which the position of a point in a plane or in space is specified by its distances from two lines or three planes respectively. The two lines, and the three lines in which the three planes intersect are called co-ordinate axes and each distance is measured parallel to an axis. If the axes are mutually perpendicular the system is said to be rectangular. Devised by Descartes and published in 1637.
Nathaniel Tyler, 2 Pi radians in a circle. Thanks for the comment, and keep up with the physics! You might also like my new website: www.universityphysics.education Cheers, Dr. A
