log1p

(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

Description

float log1p ( float number )

Varning

Den h�r funktionen �r EXPERIMENTELL. Dess beteende, namnet p� den, och allt annat dokumenterat om den h�r funktionen kan �ndras i framtida utg�var av PHP. Anv�nd den p� egen risk.

log1p() returns log(1 + number) computed in a way that is accurante even when the value of number is close to zero.

Not: Den h�r funktionen �r inte tillg�nglig under Windows.

See also expm1() and log().