mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function...

In mathematics, some functions or groups of functions are important enough to deserve their own names. This is a listing of articles which explain some...

In mathematics, a partial function f from a set X to a set Y is a function from a subset S of X (possibly the whole X itself) to Y. The subset S, that...

In mathematics, the membership function of a fuzzy set is a generalization of the indicator function for classical sets. In fuzzy logic, it represents...

In mathematics, the composition operator ∘ {\displaystyle \circ } takes two functions, f {\displaystyle f} and g {\displaystyle g} , and returns a new...

In mathematics, a surjective function (also known as surjection, or onto function /ˈɒn.tuː/) is a function f such that, for every element y of the function's...

In mathematics, an argument of a function is a value provided to obtain the function's result. It is also called an independent variable. For example...

In mathematics, an injective function (also known as injection, or one-to-one function ) is a function f that maps distinct elements of its domain to...

In mathematics, an L-function is a meromorphic function on the complex plane, associated to one out of several categories of mathematical objects. An L-series...

Floor and ceiling functions In mathematics, the floor function is the function that takes as input a real number x, and gives as output the greatest integer...

In mathematics, a monotonic function (or monotone function) is a function between ordered sets that preserves or reverses the given order. This concept...

In mathematics, the trigonometric functions (also called circular functions, angle functions or goniometric functions) are real functions which relate...

In mathematics, a multivalued function, multiple-valued function, many-valued function, or multifunction, is a function that has two or more values in...

a mathematical notation defined by cis x = cos x + i sin x, where cos is the cosine function, i is the imaginary unit and sin is the sine function. x...

In mathematics, hyperbolic functions are analogues of the ordinary trigonometric functions, but defined using the hyperbola rather than the circle. Just...

In mathematics, the term undefined refers to a value, function, or other expression that cannot be assigned a meaning within a specific formal system...

normalized to one. The normalization for the potential function is the Jacobian for the appropriate mathematical space: it is 1 for ordinary probabilities, and...

In mathematics, an identity function, also called an identity relation, identity map or identity transformation, is a function that always returns the...

Mathematics, Form and Function, a book published in 1986 by Springer-Verlag, is a survey of the whole of mathematics, including its origins and deep structure...

achieving an aim using language Function (mathematics), a relation that associates an input to a single output Function (sociology), an activity's role...

traditionally known as the theory of functions of a complex variable, is the branch of mathematical analysis that investigates functions of complex numbers. It is...

In mathematics, a constant function is a function whose (output) value is the same for every input value. As a real-valued function of a real-valued argument...

In mathematical analysis, the smoothness of a function is a property measured by the number of continuous derivatives (differentiability class) it has...

In mathematics, an analytic function is a function that is locally given by a convergent power series. There exist both real analytic functions and complex...

A periodic function, also called a periodic waveform (or simply periodic wave), is a function that repeats its values at regular intervals or periods....

Value function Value (computer science) Absolute value Truth value "Value". Meschkowski, Herbert (1968). Introduction to Modern Mathematics. George...

In mathematics, a zero (also sometimes called a root) of a real-, complex-, or generally vector-valued function f {\displaystyle f} , is a member x {\displaystyle...

In mathematics, the graph of a function f {\displaystyle f} is the set of ordered pairs ( x , y ) {\displaystyle (x,y)} , where f ( x ) = y . {\displaystyle...

Mathematical Functions (DLMF) is an online project at the National Institute of Standards and Technology (NIST) to develop a database of mathematical...

Technology (NIST). Its full title is Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables. A digital successor to the Handbook...