Function

Function may refer to:

professional or official position: Official
Function (mathematics), an abstract entity that associates an input to a corresponding output according to some rule
Computable function in software programming languages
Function (biology), explaining why a feature was created
Function (philosophy), in philosophy, a normative relation of objects or events to their use or consequences
Function object, or functor or functionoid, a concept of object-oriented programming
Functionalism (sociology), in sociology, a philosophy that originally attempted to explain social institutions
Functionalism (architecture), in architecture, the principle that a building should be designed based on its purpose
Functional programming, a programming paradigm that avoids local variables and keeping state
Grammatical function, in language studies, the purpose of a word or phrase in a sentence
Diatonic functionality, in music, the role (tonic, dominant, etc.) of a note in a chord
Subroutine, in computer science, a procedure that implements a function
Functional group, a substituent in chemistry that performs a function in a molecule

See also