Note that log of a negative or undefined number returns -Infinity.
log10
(PHP 4, PHP 5, PHP 7)
log10 — Base-10 logarithm
Description
log10
( float
$arg
) : float
Returns the base-10 logarithm of arg.
Parameters
-
arg -
The argument to process
Return Values
The base-10 logarithm of arg
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smalladi at lexgen dot com ¶
17 years ago
