# Parametric Equations

Parametric equations are a set of equations that together express a set of quantities as explicit functions of a number of independent variables, which are known as parameters.

Parametric equations is a high school-level concept that would be first encountered in a pre-calculus course.

### Examples

Curve: | A curve is a continuous map from a one-dimensional space to an n-dimensional space. Loosely speaking, the word "curve" is often used to mean the function graph of a two- or three-dimensional curve. |

Plane Curve: | A plane curve is a curve that lies in a single plane. A plane curve may be closed or open. |