# mantissa

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## man·tis·sa

(măn-tĭs′ə)*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}[C17: from Latin: something added, of Etruscan origin]

## man•tis•sa

(mænˈtɪs ə)*n.,*

*pl.*

**-sas.**

the decimal part of a common logarithm. Compare characteristic (def. 3a).

[1860–65; < Latin, variant of

*mantisa*addition; because additional to the characteristic part]## man·tis·sa

(măn-tĭs′ə) 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.

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Noun | 1. | mantissa - the positive fractional part of the representation of a logarithm; in the expression log 643 = 2.808 the mantissa is .808fraction - the quotient of two rational numbers |

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