acosh(3M)

NAME | SYNOPSIS | API RESTRICTIONS | DESCRIPTION | RETURN VALUES | ATTRIBUTES | SEE ALSO

NAME

acosh- inverse hyperbolic cosine function

SYNOPSIS

$(NUCLEUS_DIR)/lib/libm.a
#include <math.h>

double acosh(double x);

API RESTRICTIONS

The function or functions documented here may not be used safely in all application contexts with all APIs provided in the ChorusOS 5.0 product.

See API(5FEA) for details.

DESCRIPTION

The acosh() function computes the inverse hyperbolic cosine of the real argument x. For information about errors due to rounding off, see Intro(3M).

RETURN VALUES

The acosh() function returns the inverse hyperbolic cosine of x. If the argument is less than one, acosh() sets errno to EDOM and a system-dependent notification is performed.

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE	ATTRIBUTE VALUE
Interface Stability	Evolving

SEE ALSO

asinh(3M), atanh(3M), exp(3M), infnan(3M), Intro(3M)

ChorusOS 5.0  Last Revised December 2001

NAME | SYNOPSIS | API RESTRICTIONS | DESCRIPTION | RETURN VALUES | ATTRIBUTES | SEE ALSO