Logarithm base a

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The logarithm with base $a$, $\log_a$, is defined by $$\log_a(z)=\dfrac{\log(z)}{\log(a)},$$ where $\log$ denotes the logarithm.

Properties

Log base a in terms of logarithm base b
Log a(z)=1/log b(a)
Log e(z)=log(z)

See also

Logarithm
Logarithm (multivalued)

References