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

main()
{	
	int i;
	for (i = 0; i < 10; i++)
	{
	printf("------------------------------------------------------\n");
	printf ( "remainder of 5.3 / 2 is %f\n", remainder (5.3,2) );
  	printf ( "remainder of 18.5 / 4.2 is %f\n", remainder (18.5,4.2) );
//remainder of 5.3 / 2 is -0.700000
//remainder of 18.5 / 4.2 is 1.700000

	printf ( "fmod of 5.3 / 2 is %f\n", fmod (5.3,2) );
	printf ( "fmod of 18.5 / 4.2 is %f\n", fmod (18.5,4.2) );
// fmod of 5.3 / 2 is 1.300000
// fmod of 18.5 / 4.2 is 1.700000

	double param, fractpart, intpart, result;
	int n;

  	param = 3.14159265;
  	fractpart = modf (param , &intpart);
  	printf ("%f = %f + %f \n", param, intpart, fractpart);
//3.141593 = 3.000000 + 0.141593

 	param = 0.95;
	n = 4;
	result = ldexp (param , n);
	printf ("%f * 2^%d = %f\n", param, n, result);
//0.950000 * 2^4 = 15.200000

	param = 8.0;
	result = frexp (param , &n);
	printf ("%f = %f * 2^%d\n", param, result, n);
//8.000000 = 0.500000 * 2^4
	param = 50;
	result = frexp (param , &n);
	printf ("%f = %f * 2^%d\n", param, result, n);
    }
}