Polar Coordinates

Below is a summary of polar coordinates equations and formulas. By graphing polar coordinates, we have the following diagram for a circle in polar coordinates.

Equation for a circle in polar coordinates

The equation for a circle in polar coordinates is given by:

where

Other equations in polar coordinates

1. r = k is a circle in polar coordinates with center at (0,0) and radius k.
2.  is a straight line similar to y = mx where the slope of curve in polar coordinates m = tan k.
3.  is a spiral in polar coordinates.