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PHP : Function Reference : Mathematical Functions : log10

log10

Base-10 logarithm (PHP 4, PHP 5)
float log10 ( float arg )

Returns the base-10 logarithm of arg.

Parameters

arg

The argument to process

Return Values

The base-10 logaritm of arg

See Also
log()

Related Examples ( Source code ) » log10


Code Examples / Notes » log10

smalladi

Note that log of a negative or undefined number returns -Infinity.

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