(mathematics) Any of a class of functions that are solutions to a particular form of differential equation (a Bessel equation) and are typically used to describe waves in a cylindrically symmetric system.

(mathematics) a function of the type f:V⨯V→V, or more generally, a function of the type f:U_1⨯U_2⨯...⨯U_n→V in which exactly two of the sets Uᵢ are equal to V.

plural of functional group

plural of binary function

(mathematics) A function from the real line to a finite subset of the real line.

(mathematics) A function that either never decreases or never increases as its independent variable increases.

(calculus) A function f : X→R (where X is a subset of R, possibly a discrete set) that either never decreases or never increases as its independent variable increases; that is, either x ≤ y implies f(x) ≤ f(y) or x ≤ y implies f(y) ≤ f(x).

plural of Boolean function

plural of elementary function

(mathematics) A function to be maximized or minimized in optimization theory.