Function or functionality may refer to:
Computing
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Function key
A function key is a key on a computer or terminal keyboard that can be programmed so as to cause an operating system command interpreter or application program to perform certain actions, a form of soft key. On some keyboards/computers, function ...
, a type of key on computer keyboards
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Function model, a structured representation of processes in a system
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Function object
In computer programming, a function object is a construct allowing an object to be invoked or called as if it were an ordinary function, usually with the same syntax (a function parameter that can also be a function). Function objects are often c ...
or functor or functionoid, a concept of object-oriented programming
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Function (computer programming)
In computer programming, a function or subroutine is a sequence of program instructions that performs a specific task, packaged as a unit. This unit can then be used in programs wherever that particular task should be performed.
Functions may ...
, or subroutine, a sequence of instructions within a larger computer program
Music
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Function (music), a relationship of a chord to a tonal centre
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Function (musician) (born 1973), David Charles Sumner, American techno DJ and producer
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"Function" (song), a 2012 song by American rapper E-40 featuring YG, Iamsu! & Problem
* "Function", song by Dana Kletter from ''
Boneyard Beach'' 1995
Other uses
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Function (biology)
In evolutionary biology, function is the reason some object or process occurred in a system that evolved through natural selection. That reason is typically that it achieves some result, such as that chlorophyll helps to capture the energy of sunl ...
, the effect of an activity or process
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Function (engineering), a specific action that a system can perform
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Function (language), a way of achieving an aim using language
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Function (mathematics)
In mathematics, a function from a set to a set assigns to each element of exactly one element of .; the words map, mapping, transformation, correspondence, and operator are often used synonymously. The set is called the domain of the functi ...
, a relation that associates an input to a single output
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Function (sociology)
Structural functionalism, or simply functionalism, is "a framework for building theory that sees society as a complex system whose parts work together to promote solidarity and stability".
This approach looks at society through a macro-level o ...
, an activity's role in society
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Functionality (chemistry), the presence of functional groups in a molecule
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Party
A party is a gathering of people who have been invited by a host for the purposes of socializing, conversation, recreation, or as part of a festival or other commemoration or celebration of a special occasion. A party will often featu ...
or function, a social event
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Function Drinks, an American beverage company
See also
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Function field (disambiguation)
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Function hall
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Functional (disambiguation)
Functional may refer to:
* Movements in architecture:
** Functionalism (architecture)
** Form follows function
* Functional group, combination of atoms within molecules
* Medical conditions without currently visible organic basis:
** Functional s ...
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Functional group (disambiguation) The term functional group may have several meanings:
*Functional group, in organic chemistry, a group of atoms responsible for the characteristic chemical reactions of a molecule
*Functional group (ecology), a collection of organisms
*The Party of ...
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Functionalism (disambiguation)
Functionalism may refer to:
* Functionalism (architecture), the principle that architects should design a building based on the purpose of that building
* Functionalism in international relations, a theory that arose during the inter-War period
* ...
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Functor (disambiguation)
A functor, in mathematics, is a map between categories.
Functor may also refer to:
* Predicate functor in logic, a basic concept of predicate functor logic
* Function word in linguistics
* In computer programming:
** Functor (functional program ...
{{Disambiguation