representation theory of groups, a class function is a function on a group G that is constant on the conjugacy classes of G. In other words, it is invariant...

first-class functions if it treats functions as first-class citizens. This means the language supports passing functions as arguments to other functions, returning...

of a function is a property measured by the number of continuous derivatives (differentiability class) it has over its domain. A function of class C k...

special comparison functions. Class K {\displaystyle {\mathcal {K}}} functions belong to this family: Definition: a continuous function α : [ 0 , a ) → [...

with first-class functions, where they fulfil the same role for the function type as literals do for other data types. Anonymous functions originate in...

lexical closure or function closure, is a technique for implementing lexically scoped name binding in a language with first-class functions. Operationally...

passed as an argument, returned from a function, and assigned to a variable. The concept of first- and second-class objects was introduced by Christopher...

first-class function objects and may even make significant use of them. Functional programming languages additionally support closures, i.e. first-class functions...

In statistical learning theory, a learnable function class is a set of functions for which an algorithm can be devised to asymptotically minimize the expected...

computer science, a higher-order function (HOF) is a function that does at least one of the following: takes one or more functions as arguments (i.e. a procedural...

(exponentially many) set-theoretic functions mappings A to B in the category of sets. The class of such maps or functions is called the exponential object...

complex analysis, the Hardy spaces (or Hardy classes) H p {\displaystyle H^{p}} are spaces of holomorphic functions on the unit disk or upper half plane. They...

be thought of as "classes". In ZF, the concept of a function can also be generalised to classes. A class function is not a function in the usual sense...

derivative is also a continuous function over the domain of the function f {\textstyle f} . Generally speaking, f is said to be of class C k {\displaystyle C^{k}}...

collectively referred to as non-union classes) that has data and functions (also called member variables and member functions) as its members whose access is...

special comparison functions. Class K L {\displaystyle {\mathcal {KL}}} functions belong to this family: Definition: A continuous function β : [ 0 , a ) ×...

be achieved by mechanisms such as the native function pointer, the first-class function, classes or class instances in object-oriented programming languages...

a concave function is any function for which the hypograph is convex. The class of concave functions is in a sense the opposite of the class of convex...

of functions on groups: Definition (Class functions). A function φ : G → C {\displaystyle \varphi :G\to \mathbb {C} } is called a class function if it...

homomorphism in general. Characters are class functions, that is, they each take a constant value on a given conjugacy class. More precisely, the set of irreducible...

funarg problem (function argument problem) refers to the difficulty in implementing first-class functions (functions as first-class objects) in programming...

later. Such a function can always be defined but languages with first-class functions make it easier. The ability to easily compose functions encourages...

Given a class function G: V → V (where V is the class of all sets), there exists a unique transfinite sequence F: Ord → V (where Ord is the class of all...

class, which it can use to create a new function interface to a target class. An extension function will appear exactly like a function of the class and...

smoothness. These types of functions were disliked by contemporaries: Charles Hermite, on finding that one class of function he was working on had such...

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 and the...

the aims of proposed non-abelian class field theory is to incorporate the complex-analytic nature of Artin L-functions into a larger framework, such as...

of the general class of step functions, all of which can be represented as linear combinations of translations of this one. The function was originally...

Ackermann function. Other equivalent classes of functions are the functions of lambda calculus and the functions that can be computed by Markov algorithms...

class is a set containing one element (singleton set). Functions that are constant for members of the same conjugacy class are called class functions...