Function

• Function (biology)
  Function (biology)
  
  A function is part of an answer to a question about why some object or process occurred in a system that evolved through a process of selection....
  , explaining why a feature survived selection
• Function (mathematics)
  Function (mathematics)
  
  The mathematical concept of a function expresses dependence between two quantities, one of which is known and the other which is produced. A function associates a single output to each input element drawn from a fixed Set , such as the real numbers , although different inputs may have the same output....
  , an abstract entity that associates an input to a corresponding output according to some rule
• Function (engineering)
  Function (engineering)
  
  In engineering, a function is an action or task that a system is designed to perform....
  , related to the utility/goal of a property
• Function (computer science), or subroutine, a portion of code within a larger program, performs a specific task
• Function model
  Function model
  
  A function model or functional model in systems engineering and software engineering is a structured representation of the functions, activities or processes within the modeled system or subject area....
   is a structured representation of the functions, activities or processes.
• Function object
  Function object
  
  A function object, also called a functor, functional or functionoid, is a computer programming construct allowing an object to be invoked or called as if it were an ordinary function , usually with the same syntax....
  , or functor or functionoid, a concept of object-oriented programming
• Diatonic function
  Diatonic function
  
  A diatonic function, in tonality music theory, is the specific, recognized role of each note and chord in relation to the key .Three general and inseparable essential features of harmonic function in tonal music are:...
   describes a music term
• A formal event such as a party
  Party
  
  A party is a gathering of persons who have been invited by a host for the purposes of socializing, conversation, and recreation. A party will typically feature eating and Drinking#Alcoholic beverages, and often music and dancing as well....
   or meeting
  Meeting
  
  In a meeting, two or more people come together for the purpose of discussing a predetermined topic such as business or community event planning, often in a formal setting....
  

See also

• Functional (disambiguation)
• Functionalism (disambiguation)
• Functor
  Functor
  
  In category theory, a branch of mathematics, a functor is a special type of mapping between categories. Functors can be thought of as morphisms in the category of small categories....
  
• Function hall
  Function hall
  
  A function hall or banquet hall is a room for the purpose of hosting a party, banquet, reception, or other social event.These are often found within the buildings of clubs and fraternal organizations or within a restaurant....