تابع ‎asin()‎‎ در ‎C++‎

/* asin example */
#include <stdio.h>/* printf */
#include <math.h>/* asin */

#define PI 3.14159265

int main ()
{
double param, result;
param = 0.5;
result = asin (param) * 180.0 / PI;
printf ("The arc sine of %f is %f degreesn", param, result);
return 0;
}