Functional may refer to:
* Movements in architecture:
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Functionalism (architecture)
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Form follows function
Form follows function is a principle of design associated with late 19th and early 20th century architecture and industrial design in general, which states that the shape of a building or object should primarily relate to its intended function ...
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Functional group
In organic chemistry, a functional group is a substituent or moiety in a molecule that causes the molecule's characteristic chemical reactions. The same functional group will undergo the same or similar chemical reactions regardless of the re ...
, combination of atoms within molecules
* Medical conditions without currently visible organic basis:
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Functional symptom
A functional symptom is a medical symptom with no known physical cause. In other words, there is no structural or pathologically defined disease to explain the symptom. The use of the term 'functional symptom' does not assume psychogenesis, only ...
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Functional disorder
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Functional classification for roads
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Functional organization
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Functional training
In mathematics
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Functional (mathematics)
In mathematics, a functional (as a noun) is a certain type of function. The exact definition of the term varies depending on the subfield (and sometimes even the author).
* In linear algebra, it is synonymous with linear forms, which are l ...
, a term applied to certain scalar-valued functions in mathematics and computer science
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Functional analysis
Functional analysis is a branch of mathematical analysis, the core of which is formed by the study of vector spaces endowed with some kind of limit-related structure (e.g. inner product, norm, topology, etc.) and the linear functions defined o ...
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Linear functional
In mathematics, a linear form (also known as a linear functional, a one-form, or a covector) is a linear map from a vector space to its field of scalars (often, the real numbers or the complex numbers).
If is a vector space over a field , the ...
, a type of functional often simply called a functional in the context of functional analysis
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Higher-order function, also called a functional, a function that takes other functions as arguments
In computer science, software engineering
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(C++), a header file in the C++ Standard Library
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Functional design, a paradigm used to simplify the design of hardware and software devices
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Functional model In systems engineering, software engineering, and computer science, a function model or functional model is a structured representation of the functions ( activities, actions, processes, operations) within the modeled system or subject area. , a structured representation of functions, activities or processes in systems and software engineering
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Functional programming
In computer science, functional programming is a programming paradigm where programs are constructed by applying and composing functions. It is a declarative programming paradigm in which function definitions are trees of expressions that ...
, a programming paradigm based on mathematical functions rather than changes in variable states
* In an
ontology (information science), "functional" is a property or relation that can only hold a single value for a given individual
See also
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Function (disambiguation)
Function or functionality may refer to:
Computing
* Function key, a type of key on computer keyboards
* Function model, a structured representation of processes in a system
* Function object or functor or functionoid, a concept of object-orient ...
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Functionalism (disambiguation)
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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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Functional grammar (disambiguation)
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