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IEVref:102-01-10ID:
Language:enStatus: backup
Term: function
Synonym1: operation
[Preferred]
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Definition: relation f such that for any entity a there is exactly one entity b to which a is related by f

NOTE 1 If a is related to b by the function f, then:

  • f is said to be defined for a,
  • a is an argument of the function f,
  • b is a value of the function f and is usually denoted by f(a).

The argument a may be an ordered set of more elementary entities.

NOTE 2 If A is the set of all arguments of the function f and B is a set containing all the values, then:

  • f is said to be a mapping of A into B,
  • A is the domain of the function,
  • B is the range or codomain of the function.

NOTE 3 The term "operation" is used in common language for elementary functions such as addition, subtraction, multiplication, division.


Publication date:2007-08
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