EXPM1
Section: Linux Programmer's Manual (3)
Updated: 20020727
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NAME
expm1, expm1f, expm1l  exponential minus 1
SYNOPSIS
#include <math.h>
double expm1(double x);
float expm1f(float x);
long double expm1l(long double x);
Link with lm.
DESCRIPTION
expm1(x)
returns a value equivalent to `exp (x)  1'. It is
computed in a way that is accurate even if the value of x is near
zeroa case where `exp (x)  1' would be inaccurate due to
subtraction of two numbers that are nearly equal.
CONFORMING TO
BSD, C99.
The
float
and
long double
variants are C99 requirements.
SEE ALSO
exp(3),
log(3),
log1p(3)
Index
 NAME

 SYNOPSIS

 DESCRIPTION

 CONFORMING TO

 SEE ALSO

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