Man page - asinhf(3)

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Manual

asinh

NAME
LIBRARY
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
ATTRIBUTES
STANDARDS
HISTORY
SEE ALSO

NAME

asinh, asinhf, asinhl - inverse hyperbolic sine function

LIBRARY

Math library ( libm , -lm )

SYNOPSIS

#include <math.h>

double asinh(double x );
float asinhf(float x );
long double asinhl(long double x );

Feature Test Macro Requirements for glibc (see feature_test_macros (7)):

asinh ():
_ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
|| _XOPEN_SOURCE >= 500
|| /* Since glibc 2.19: */ _DEFAULT_SOURCE
|| /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE

asinhf (), asinhl ():
_ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
|| /* Since glibc 2.19: */ _DEFAULT_SOURCE
|| /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE

DESCRIPTION

These functions calculate the inverse hyperbolic sine of x ; that is the value whose hyperbolic sine is x .

RETURN VALUE

On success, these functions return the inverse hyperbolic sine of x .

If x is a NaN, a NaN is returned.

If x is +0 (-0), +0 (-0) is returned.

If x is positive infinity (negative infinity), positive infinity (negative infinity) is returned.

ERRORS

No errors occur.

ATTRIBUTES

For an explanation of the terms used in this section, see attributes (7).

Image grohtml-427534-1.png

STANDARDS

C11, POSIX.1-2008.

HISTORY

C99, POSIX.1-2001.

The variant returning double also conforms to SVr4, 4.3BSD.

SEE ALSO

acosh (3), atanh (3), casinh (3), cosh (3), sinh (3), tanh (3)