(logic) A function which replaces a variable bound by an existential quantifier which lies in the scope of an even number of logical negations; such function is a function of the remaining bound variables whose scope contain the given variable (being replaced).

(mathematics) Any of a group of special functions of several complex variables, important in many areas, including the theories of abelian varieties and moduli spaces, and of quadratic forms.

A function which is equal to 1 for all points in its domain which belong to a given set, and is equal to 0 for all points in the domain which do not belong to that given set.

(computing) A function that modifies a file to make it assume the statistical properties of another file.

(computer science) The negative of the convex function.

(computer science) A mathematical function whose input is a set (usually of real numbers or a set of points in the Euclidean or some measure space), and whose output is usually a number.

(mathematical analysis) A mathematical function that is also called the Euler integral of the first kind; it is a symmetric special function.

(mathematical analysis) The mathematical function of an electromagnetic wave is a measure of the change undergone by the amplitude of the wave as it propagates in a given direction, which is also called the propagation constant.

Any of the higher mental functions that manage cognitive processes.

(mathematical analysis) A generalization of the hyperfactorial function in mathematics to real and complex numbers.