(PHP 4 >= 4.1.0, PHP 5, PHP 7)
log1p — Returns log(1 + number), computed in a way that is accurate even when the value of number is close to zero
$number
)
log1p() returns log(1 +
number
) computed in a way that is accurate even
when the value of number
is close to zero.
log() might only return log(1) in this case
due to lack of precision.
number
The argument to process
log(1 + number
)
Version | Description |
---|---|
5.3.0 | This function is now available on all platforms |