Книга: Range (mathematics): Mathematics, Function, Range, Domain of a Function, Bijection, Injection and Surjection, Rescaled Range, Sequence, Column Space

High Quality Content by WIKIPEDIA articles! In mathematics, the range of a function f (denoted by mbox{ran},f ) is the set of all 'output' values produced by f. Sometimes it is called the image, or more precisely, the image of the domain of the function. If a function is a surjection then its range is equal to its codomain. In a representation of a function in an xy Cartesian coordinate system, the range is represented on the ordinate (on the y axis). Sometimes the range means the set of all possible values ? the codomain. This is also the current usage for range in computer science. The ambiguity makes it preferable to specify whether it is the image or the codomain being discussed.