Functional

Generally, functional refers to something able to fulfill its purpose or function.

• Functionalism and Functional form, movements in architectural design
• Functional group, certain atomic combinations that occur in various molecules, e.g. carbonyl, amine
• Functional symptom, functional disorder, sometimes used in medicine to describe symptoms and conditions that have no current visible organic basis
• Functional classification, a classification system for roads in the United States.

In mathematics and computer science

• 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
• In an ontology, "functional" is a property or relation that can only hold a single value for a given individual
• Functional programming, a programming paradigm based on mathematical functions rather than changes in variable states

In software engineering

• 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

See also

• Function (disambiguation)
• Functionalism (disambiguation)
• Functional group (disambiguation)
• Functional grammar (disambiguation)