radix complement

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radix complement (true complement) For an integer represented in a fixed-radix number system, a number formed by adding one to the radix-minus-one complement of the given integer. For example, in the decimal system the ten's complement of 0372 is 9628 (i.e. 9627 + 1); in the binary system the two's complement of 1100 is 0100 (i.e. 0011 + 1). See also complement number system.