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GNU/Linux man pages

Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :

ISBN : 978-2-7460-9712-4
EAN : 9782746097124
(Editions ENI)

GNU/Linux

CentOS 4.8

i386

acoshf(3)


ACOSH

ACOSH

NAME
SYNOPSIS
DESCRIPTION
ERRORS
CONFORMING TO
SEE ALSO

NAME

acosh, acoshf, acoshl − inverse hyperbolic cosine function

SYNOPSIS

#include <math.h>

double acosh(double x);

float acoshf(float x);

long double acoshl(long double x);

DESCRIPTION

The acosh() function calculates the inverse hyperbolic cosine of x; that is the value whose hyperbolic cosine is x. If x is less than 1.0, acosh() returns not-a-number (NaN) and errno is set.

ERRORS

EDOM

x is out of range.

CONFORMING TO

SVID 3, POSIX, BSD 4.3, ISO 9899. The float and long double variants are C99 requirements.

SEE ALSO

asinh(3), atanh(3), cosh(3), sinh(3), tanh(3)



acoshf(3)