Principle objective of this article is to Define and Discuss on Polar Coordinates. Here explain Polar Coordinates in mathematical terms. The rectangular coordinate system is the most favored coordinate system. Second in importance would be the polar coordinate system. It is made up of fixed point 0 called the pole, or origin. Extending with this point is a ray called the polar axis. Polar coordinates are greatest used when periodic functions are considered. Although either system can usually double, polar coordinates are especially useful under certain ailments.