log1p.c File Reference

#include "../math.h"

Functions
double	log1p (double x)
	Compute natural logarithm of value + 1. More...

Function Documentation

log1p()

double log1p

(

double

x

)

Compute natural logarithm of value + 1.

The log1p functions compute the base-e (natural) logarithm of 1 plus the argument. A domain error occurs if the argument is less than −1. A pole error may occur if the argument equals −1.

Parameters

x	Value whose logarithm is calculated.

Returns

The log1p functions return log_e(1 + x).