## Rules for Logarithm

Notation is used for operation of logarithm for positive number and , . The number is called the base. The definition of logarithm of to the base is equivalent to the power from the base

When the base is not mention, we usually refer as .

When (euler number), we use special notation

For positive and and for any real and any positive base

Special case for any positive base

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See also
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:
Kardi Teknomo Tutorials
,
Power Rule
,
Logarithmic Curve

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