The arity of something is the number of arguments it takes. This is usually applied to functions: an n-ary function is one that takes n arguments. Unary is a synonym for 1-ary, and binary for 2-ary.

Title arity
Canonical name Arity
Date of creation 2013-03-22 13:00:01
Last modified on 2013-03-22 13:00:01
Owner Henry (455)
Last modified by Henry (455)
Numerical id 4
Author Henry (455)
Entry type Definition
Classification msc 00A05
Synonym ary
Synonym -arity
Related topic BinaryOperation
Defines unary
Defines binary