1. A set containing a certain number of objects selected from another set.The number of combinations of r objects chosen from a set of n is
n C r = n! / ((n-r)! r!)where "n C r" is normally with n and r as subscripts or as n above r in parentheses. See also permutation.
2. In the theory of combinators, a combination denotes an expression in which function application is the only operation.
Last updated: 1995-04-10
com ♦ COMAL ♦ combination ♦ combinator ♦ combinatory logic ♦ Combined object-oriented Language
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