Arithmetical complement of a number

Related to Arithmetical complement of a number: 2's complement, 2's complement arithmetic, Two's complement arithmetic
(Math.) the difference between that number and the next higher power of 10; as, 4 is the complement of 6, and 16 of 84.

See also: Complement

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.