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