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MantissaExponent

MantissaExponent[x]
gives a list containing the mantissa and exponent of a number x.
MantissaExponent
gives the base-b mantissa and exponent of x.
  • The mantissa always lies between and or and .
In[1]:=
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Out[1]=
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Integers:
Base 2:
Exact numeric quantities:
The precision of the mantissa will depend on the precision of the inputs:
The fundamental identity :
If r=RealExponent[x, b] then and :
RealDigits gives the mantissa in terms of digits:
The mantissa is given by :
This is equal to the values given by MantissaExponent:
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