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Manual Reference Pages  - LOG1P (3)

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log1p - logarithm of 1 plus argument

CONTENTS

Synopsis
Description

#include <math.h> 



double log1p(double x); 



float log1pf(float x); 



long double log1pl(long double x); 

log1p(x) returns a value equivalent to ‘log (1 + x)’. It is computed in a way that is accurate even if the value of x is near zero.

BSD, C99. The float and the long double variants are C99 requirements.

exp(3), log(3), expm1(3)

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