asinh, asinhf, asinhl
The new home for Visual Studio documentation is Visual Studio 2017 Documentation on docs.microsoft.com.
The latest version of this topic can be found at asinh, asinhf, asinhl.
Calculates the inverse hyperbolic sine.
double asinh( double x ); float asinh( float x ); // C++ only long double asinh( long double x ); // C++ only float asinhf( float x ); long double asinhl( long double x );
Parameters
x
Floating-point value.
The asinh functions return the inverse hyberbolic sine (arc hyperbolic sine) of x. This function is valid over the floating-point domain. If x is a quiet NaN, indefinite, or infinity, the same value is returned.
| Input | SEH Exception | _matherr Exception |
|---|---|---|
| ± QNAN, IND, INF | none | none |
When you use C++, you can call overloads of asinh that take and return float or long double values. In a C program, asinh always takes and returns double.
| Function | C header | C++ header |
|---|---|---|
asinh, asinhf, asinhl | <math.h> | <cmath> |
For additional compatibility information, see Compatibility.
// crt_asinh.c
// Compile by using: cl /W4 crt_asinh.c
// This program displays the hyperbolic sine of pi / 4
// and the arc hyperbolic sine of the result.
#include <math.h>
#include <stdio.h>
int main( void )
{
double pi = 3.1415926535;
double x, y;
x = sinh( pi / 4 );
y = asinh( x );
printf( "sinh( %f ) = %f\n", pi/4, x );
printf( "asinh( %f ) = %f\n", x, y );
}
sinh( 0.785398 ) = 0.868671 asinh( 0.868671 ) = 0.785398
Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.
Floating-Point Support
Long Double
cos, cosf, cosl, cosh, coshf, coshl
acosh, acoshf, acoshl
sin, sinf, sinl, sinh, sinhf, sinhl
tan, tanf, tanl, tanh, tanhf, tanhl
atanh, atanhf, atanhl
_CItan