//
// *****   Program Ch03_2.cpp   ***********
// Example of arithmetic operations, increment and decrement
// operators
#include <iostream>

using namespace std;

int main()
{
	// declare variables for use in the program and assign them an initial
	// value.  These variables are used in various expressions to illustrate
	// mathematical computations in C++
	int num1 = 10, num2 = 20, num3 = 30;
	float flt1 = 40, flt2 = 50.0, flt3 = 60.5;
	int num;
	float flt;


	// Output the values of the variables used in the program.  This information
	// is then used to verify the results shown for the mathematical operations

	cout << "num1 = " << num1 << " : num2 = " << num2 << " : num3 = " << num3 << endl;
	cout << "flt1 = " << flt1 << " : flt2 = " << flt2 << " : flt3 = " << flt3 << endl;
	cout << "=================================================================\n";

	// Addition and subtraction
	// Perform integer and floating point addition and subtraction and output
	// the results.
	cout << "Addition and subtraction\n\n";
	num = num1 - num2 + num3 +5;
	cout << "num1 - num2 + num3 +5 = " << num << endl;
	flt = -flt1 + flt2 + flt3;
	cout << "-flt1 + flt2 + flt3 = " << flt << endl;
	cout << "=================================================================\n";

	// Integer and Floating point multiplication examples
	cout << "Multiplication\n\n";
	cout << "num1*num2 = " << num1*num2 << endl;
	cout << "flt1*flt3 =  " << flt1*flt3 << endl;
	cout << "=================================================================\n";


	// Example of floating point division
	cout << "floating point division\n";
	cout << "flt1/flt2 = " << flt1/flt2 << endl;
	cout << "16.0000/5.0000 = " << 16.0000/5.0000 << endl;
	cout << "16.0000/4.0000 = " << 16.0000/4.0000 << endl;

	// Example of integer division
	cout << "\nInteger division: " << num1 << "/" << num2 << " = "
		<< num1/num2 << endl;
	cout << "integer division2, 19/3 = " << 19/3 << endl;
	cout << "integer division3, 17/9 = " << 17/9 << endl;
	cout << "=================================================================\n";

	return 0;
}