The log1p() function returns log(1+number), computed in a way that is accurate even when the value of number is close to zero.
float log1p ( float $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.
Parameter | Description |
---|---|
number | The argument to process |
log(1 + number)