# asinh(3) [osx man page]

```ASINH(3)						   BSD Library Functions Manual 						  ASINH(3)

NAME
asinh -- inverse hyperbolic sine function

SYNOPSIS
#include <math.h>

double
asinh(double x);

long double
asinhl(long double x);

float
asinhf(float x);

DESCRIPTION
The asinh() function computes the inverse hyperbolic sine of the real argument

SPECIAL VALUES
asinh(+-0) returns +-0.

asinh(+-infinity) returns +-infinity.

VECTOR OPERATIONS
If you need to apply the asinh() function to SIMD vectors or arrays, using the following functions provided by the Accelerate.framework may
give significantly better performance:

#include <Accelerate/Accelerate.h>

vFloat vasinhf(vFloat x);
void vvasinhf(float *y, const float *x, const int *n);
void vvasinh(double *y, const double *x, const int *n);

acosh(3), atanh(3), exp(3), math(3)

STANDARDS
The asinh() function conforms to ISO/IEC 9899:2011.

4.3 Berkeley Distribution					 December 11, 2006					 4.3 Berkeley Distribution```

## Check Out this Related Man Page

```ACOSH(3)						   BSD Library Functions Manual 						  ACOSH(3)

NAME
acosh -- inverse hyperbolic cosine function

SYNOPSIS
#include <math.h>

double
acosh(double x);

long double
acoshl(long double x);

float
acoshf(float x);

DESCRIPTION
The acosh() function computes the principle value of the inverse hyperbolic cosine of x.  The result is in the range [0, +infinity].

SPECIAL VALUES
acosh(1) returns +0.

acosh(x) returns a NAN and raises the "invalid" floating-point exception for x < 1.

acosh(+infinity) returns +infinity.

VECTOR OPERATIONS
If you need to apply the acosh() function to SIMD vectors or arrays, using the following functions provided by the Accelerate.framework may
give significantly better performance:

#include <Accelerate/Accelerate.h>

vFloat vacoshf(vFloat x);
void vvacoshf(float *y, const float *x, const int *n);
void vvacosh(double *y, const double *x, const int *n);