補ほ数すう

noun

complement (of a number)

Mathematical term for the number that, when added to a given number, yields a specified base or modulus. Common in computing and number theory.

• 10進しん数すうでは、3の補ほ数すうは7です。

  In decimal, the complement of 3 is 7.

• コンピュータは負ふの数すうを表あらわすのに2の補ほ数すうを使つかう。

  Computers use two's complement to represent negative numbers.