Noun
polar equation (plural polar equations)
(mathematics) An equation defining a curve in terms of radius and angle.
Polar equation of a curve The equation defining an algebraic curve expressed in polar coordinates is known as a polar equation. Source: Internet
Because of the circular nature of the polar coordinate system, many curves can be described by a rather simple polar equation, whereas their Cartesian form is much more intricate. Source: Internet
Polar rose A polar rose is a famous mathematical curve that looks like a petaled flower, and that can be expressed as a simple polar equation, : for any constant ɣ 0 (including 0). Source: Internet