Definition: (1) The inputs for which a function or relation is defined. For instance, 0 is not in the domain of reciprocal (1/x). (2) The possible values of a variable.
See also range, total function.
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Entry modified 17 December 2004.
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Cite this as:
Paul E. Black, "domain", in Dictionary of Algorithms and Data Structures [online], Vreda Pieterse and Paul E. Black, eds. 17 December 2004. (accessed TODAY) Available from: http://www.nist.gov/dads/HTML/domain.html