#include <math.h>
#include <stdio.h> 
#include "header.h"

main(){
  double tol = 1e-8;

  /* evaluate the sine function approximately */
  double a = mysin(1.2 , tol ); 

  /* evaluate the inverse of the approximate
     sine function approximately */
  double b = myasin(a, tol);

  /* print results */
  printf ("mysin(1.2)=%17.15lg , sin(1.2)=%17.15lg,"
	  "difference=%17.15lg\n", 
	  a, sin(1.2), fabs(a-sin(1.2)));

  printf("myasin(mysin(1.2)) = %17.15lg , error=%17.15lg\n",
	 b, fabs(b-1.2));
}