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Built-in Mathematica Symbol

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RealExponent

RealExponent[x]
gives

.

RealExponent[x, b]
gives

.

MORE INFORMATION

If x is an approximate number consistent with zero, then RealExponent[x] gives -Accuracy[x].

For any approximate number x, RealExponent[x] is equal to Precision[x]-Accuracy[x]. »

RealExponent automatically threads over lists.

Basic Examples (1)

The base 10 exponent for a number

:

This is the number

such that

:

The base 2 exponent:

This is the number

such that

:

Applications (2)

Properties & Relations (4)

Log10 Log MantissaExponent IntegerExponent Accuracy Precision

Representation of Numbers

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