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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()
<< lcg_value
PHP
:
Function Reference
:
Mathematical Functions
: log10
log1p >>
Related Examples ( Source code ) » log10
Examples ( Source code ) »
Exp
Code Examples / Notes » log10
smalladi
Note that log of a negative or undefined number returns -Infinity.
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