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Mantissa


For a real number x, the mantissa is defined as the positive fractional part x-|_x_|=frac(x), where |_x_| denotes the floor function.

For example, for x=3.14159, the mantissa is 0.14159.


See also

Characteristic, Floor Function, Fractional Part, Scientific Notation

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Cite this as:

Weisstein, Eric W. "Mantissa." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Mantissa.html

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