Domain of definition
of a function
The set on which the function considered is given, that is, the collection of all elements with each of which the given function associates an element of some set . Thus, if , then is called the domain of definition of .
The set of values of , i.e. if denotes the domain of definition, is called the range of values of .
Domain of definition. Encyclopedia of Mathematics. URL: http://www.encyclopediaofmath.org/index.php?title=Domain_of_definition&oldid=13605