#include <iostream>
#include <iomanip>  // this include file is needed for the output
			  // manipulation - first cout statement you see below

using namespace std;

void main ()
{
	int x = 9, y = 2, z = 4, w;
	double a = 9.0, b = 2.0, c = 4.0, d;

	// the following line tells the computer to display numbers
	// in decimal (rather than scientific) notation, showing the
	// decimal point with 2 significant digits.
	// page 113 - 114 of your C++ text
	cout << fixed << showpoint << setprecision(2);

	w = x / y; // int/int into an int
	// the (i/i to i) means int/int stored in an int
	cout << "  w is ( i/i to i) " << w << endl;

	d = a / b; // double/double into a double
	cout << " d is ( d/d to d) " << d << endl;

	d = x / y;  // int/int into a double
	cout << " d is ( i/i to d) " << d << endl;

	w = a / y;  // double/int into an int
	cout << " w is (d/i to i) " << w << endl;

	d = x / b; // int/double into a double
    cout << " d is  (i/d to d)" << d << endl;

	w = a / b; // double/double into an int
    cout << " w is  (d/d to i)" << w << endl;

	//explicit type casting - forcing a data type to another type

	d = (double)x / y; // this forces x to be transformed to a double
					   // for this one calcuation

    cout << " d is  (i typcast as double d/i to d)" << d << endl;

	d = x / (double)y; // this forces y to be transformed to a double
					   // for this one calcuation

    cout << " d is  (i typcast as double i/d to d)" << d << endl;

	d = (double)(x / y); // this forces the number x/y to be a double
					     // for this one calcuation

    cout << " d is  (typecast(int/int) as d)" << d << endl;

}