man·tis·sa (m n-t s  )n. The decimal part of a logarithm. In the logarithm 2.95424, the mantissa is 0.95424. [Latin, makeweight, perhaps of Etruscan origin.] |
mantissa [mænˈtɪsə]
n
(Mathematics) the fractional part of a common logarithm representing the digits of the associated number but not its magnitude the mantissa of 2.4771 is .4771 Compare characteristic [2a]
[from Latin: something added, of Etruscan origin]
| mantissa (mn-ts) The part of a logarithm to the base ten that is to the right of the decimal point. For example, if 2.749 is a logarithm, .749 is the mantissa. Compare characteristic. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. | mantissa - the positive fractional part of the representation of a logarithm; in the expression log 643 = 2.808 the mantissa is .808 fraction - the quotient of two rational numbers |
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