C/math.h/asinh

asinh: returns the arc hyperbolic sine of arg

<source lang="cpp">

//Declaration: float asinhf(float arg);

              double asinh(double arg); 
              long double asinhl(long double arg);  

   
 
 #include <math.h>
 #include <stdio.h>
 int main(void)
 {
   printf("%f.\n", asinh(12));
   return 0;
 }
        

/* 3.179785.

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      </source>