• (mathematics, programming, computer engineering) Of an operation, function, procedure, or logic gate, taking exactly one operand, argument, parameter, or input; having domain of dimension 1.

    "Negation is a unary operation."

  • Consisting of or involving a single element or component.


  • (information theory) Unary coding, an entropy encoding for natural numbers.
  • (mathematics) The unary numeral system; the bijective base-1 numeral system.

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