Functional may refer to:
* Movements in architecture:
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Functionalism (architecture)
In architecture, functionalism is the principle that buildings should be designed based solely on their purpose and function.
This principle is a matter of confusion and controversy within the profession, particularly in regard to modern archite ...
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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 res ...
, combination of atoms within molecules
* Medical conditions without currently visible organic basis:
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Functional symptom
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Functional disorder
‘Functional disorder’ is an umbrella term for a group of recognisable medical conditions which are due to changes to the functioning of the systems of the body rather than due to a disease affecting the structure of the body.
Functional disor ...
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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 ...
, 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 ...
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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 , th ...
, 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, 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)
In computer science and information science, an ontology encompasses a representation, formal naming, and definition of the categories, properties, and relations between the concepts, data, and entities that substantiate one, many, or all domai ...
, "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)
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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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