The codomain of a function 
is the set 
specified as its possible output values. Its domain
is 
, while its range 
consists of the values actually taken
and is a subset of 
.
Codomain
See also
Domain, RangeExplore with Wolfram|Alpha
References
Borowski, E. J. and Borwein, J. M. (Eds.). The HarperCollins Dictionary of Mathematics. New York: HarperCollins, p. 89, 1991.Griffel, D. H. Applied Functional Analysis. New York: Wiley, p. 116, 1984.Referenced on Wolfram|Alpha
CodomainCite this as:
Weisstein, Eric W. "Codomain." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Codomain.html