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(PHP 4 >= 4.1.0, PHP 5)

log1p — 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`-
The argument to process

log(1 + * number*)

Version | Description |
---|---|

5.3.0 | This function is now available on all platforms |