Definitions for: Mantissa


[n] the positive fractional part of the representation of a logarithm; in the expression log 643 = 2.808 the mantissa is .808



Webster (1913) Definition: Man*tis*sa, n. [L., an addition, makeweight; of
Tuscan origin.] (Math.)
The decimal part of a logarithm, as distinguished from the
integral part, or characteristic.

Synonyms: fixed-point part

See Also: fraction

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