# Multivariable calculus

**Multivariable calculus** (also known as **multivariate calculus**) is the extension of calculus in one variable to calculus with functions of several variables: the differentiation and integration of functions involving several variables, rather than just one.[1]

This article relies largely or entirely on a single source. (October 2015) |

It has been suggested that Calculus on Euclidean space be merged into this article. (Discuss) Proposed since May 2022. |

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Multivariable calculus may be thought of as an elementary part of advanced calculus. For advanced calculus, see calculus on Euclidean space.