Functional

Look up functional in Wiktionary, the free dictionary.

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 symptom
- Functional disorder
Functional classification for roads
Functional organization
Functional training

In mathematics

Functional (mathematics), a term applied to certain scalar-valued functions in mathematics and computer science
- Functional analysis
- Linear functional, a type of functional often simply called a functional in the context of functional analysis
Higher-order function, also called a functional, a function that takes other functions as arguments

"Functional" (noun) may be used as a synonym for Higher-order function
functional (C++), a header file in the C++ Standard Library
Functional design, a paradigm used to simplify the design of hardware and software devices
Functional model, a structured representation of functions, activities or processes in systems and software engineering
Functional programming, 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