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# log1p

(PHP 4 >= 4.1.0)

log1p -- Returns log(1 + number), computed in a way that accurate even when the val ue of number is close to zero

## Description

``float log1p` (float number)`

Warning
This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change in a future release of PHP without notice. Be warned and use this function at your own risk.

Warning
This function is currently not documented, only the argument list is available.

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