mantissa definition

  • noun:
    • The decimal element of a logarithm. In logarithm 2.95424, the mantissa is 0.95424.
    • A minor addition to a text.
    • The element of a common logarithm after the decimal point, the fractional section of a logarithm.
    • The significand; that part of a floating-point quantity or quantity in systematic notation that contains its considerable digits.
    • The decimal part of a logarithm, as distinguished from the integral part, or characteristic.
    • A supplementary treatise; an inferior work after one for a passing fancy topic.
    • The decimal element of a logarithm: so called as being extra to the characteristic or key part.
    • [capitalized] In zoology, a genus of mollusks.
    • the good fractional area of the representation of a logarithm; within the phrase log 643 = 2.808 the mantissa is .808

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