Gradient of multivariable function vectors.

Measure of function's local distortion.

(mathematics) A famous problem on polynomials in several variables.

In vector calculus, the Jacobian matrix of a vector-valued function of several variables is the matrix of all its first-order partial derivatives.

In mathematics, the Jacobian variety J(C) of a non-singular algebraic curve C of genus g is the moduli space of degree 0 line bundles.