English Dictionary
mantissa
n : the positive fractional part of the representation of a
logarithm; in the expression log 643 ◦ 2.808 the mantissa
is .808 [syn: {fixed-point part}]
English Computing Dictionary
mantissa
1.
The part of a {floating point} number which, when multiplied by its {radix} raised to the power of its
{exponent}, gives its value. The mantissa may include the
number's sign or this may be considered to be a separate part.
2. The fractional part of a {logarithm}.
(1996-06-15)