DefinitionPolar equations graphs the relationship between two variables in the polar coordinate system, where points are determined by a distance and an angle with respect to a fixed point (the pole). The polar coordinate system is particularly well-suited to graphing certain types of curves that are more very difficult to graph in a standard coordinate system, such as spirals, circles, and roses. As a result, polar splits are widespread in physics, engineering, and graphics, where they are generally used to represent oscillatory or rotational phenomena. For example, the polar equation r=1+sin(θ) is the limaçon, a type of polar curve that has loops and petals.
