Reference

<cmath> (math.h)

function
<cmath> <ctgmath>

asinh

 double asinh (double x); float asinhf (float x);long double asinhl (long double x);
 double asinh (double x); float asinh (float x);long double asinh (long double x); double asinh (T x); // additional overloads for integral types
Compute area hyperbolic sine
Returns the area hyperbolic sine of x.

The area hyperbolic sine is the inverse operation of the hyperbolic sine .

Header <tgmath.h> provides a type-generic macro version of this function.
Additional overloads are provided in this header (<cmath> ) for the integral types: These overloads effectively cast x to a double before calculations (defined for T being any integral type ).

This function is also overloaded in <complex> (see complex asinh).

Parameters

x
Value whose area hyperbolic sine is computed.

Return Value

Area hyperbolic sine of x.

Example

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/* asinh example */
#include <stdio.h> /* printf */
#include <math.h> /* asinh, exp, cosh */
int main ()
{
 double param, result;
 param = exp(2) - cosh(2);
 result = asinh(param) ;
 printf ("The area hyperbolic sine of %f is %f.\n", param, result);
 return 0;
}

Output:

The area hyperbolic sine of 3.626860 is 2.000000.


See also

sinh
Compute hyperbolic sine (function)
acosh
Compute area hyperbolic cosine (function)

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