# 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 characteristic2a
[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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
 Noun 1 mantissa - the positive fractional part of the representation of a logarithm; in the expression log 643 = 2.808 the mantissa is .808fixed-point partfraction - the quotient of two rational numbers
Translations
References in periodicals archive ?
Newcomb (1881), in his article titled Note on the Frequency of Use of the Different Digits in Natural Numbers, concluded that "the law of the probability of the occurrence of numbers is such that all the mantissas of their logarithms are equally probable".
The sign bit chooses the operations whereas the exponent decides the operands or bits in mantissas to which be added.
Here m represents mantissa bit value, t represents the bits after leading one in mantissa, a represents error value for first t bits, b represents adjacent value to a, k represents total number of most significant bits in mantissa and n1 represents decimal value of k-t bits.
To multiply the two mantissas, a 24 x 24 bit reversible multiplier is to be designed.
v) To determine the sign part, a 24-bit reversible comparator to compare the mantissa is required.
These shortened mantissas show up in the decimal printout too.
Add the mantissas to produce the fraction of the result.
Essentially, the mantissas of the input operands are multiplied together and the exponents of the input operands are added together.
If we are using normalized, IEEE floating-point, double-precision numbers which have an implicit leading 1, mantissas lie in the interval [1,2).
The Alpha AXP architecture provides hardware support for D-float with only 53-bit mantissas, whereas the VAX architecture provides 56-bit mantissas.
1-b where b is the number of bits in the mantissas of the computer's floating-point numbers.

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