Line integral

Definite integral of a scalar or vector field along a path

In mathematics, a line integral is an integral where the function to be integrated is evaluated along a curve. The terms path integral, curve integral, and curvilinear integral are also used; contour integral is used as well, although that is typically reserved for line integrals in the complex plane. The function to be integrated may be a scalar field or a vector field.

From Wikipedia, under CC BY-SA. More on occurri.