Definition: A function that always gives the same value.
See also 0-ary function, unary function, binary function, n-ary function.
Note: A 0-ary or nullary function that is pure (no state or interactions with external variables) must be a constant function.
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Entry modified 17 December 2004.
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Cite this as:
Paul E. Black, "constant function", in Dictionary of Algorithms and Data Structures [online], Paul E. Black, ed. 17 December 2004. (accessed TODAY) Available from: https://www.nist.gov/dads/HTML/constantfunc.html