//	File name:	assignment3.cpp
//	Author:		Whitney Keating
//	Instructor:	Dr. John Wang
//	Due date:	Wed., Sept. 19, 2007
//	Compilation:	g++ assignment3.cpp -o assignment3.out
//	Execution: 	./assignment3.out
//
//	Goal:	This program will output the operations of two numbers

#include <iostream>
#include <iomanip>	

using namespace std;

int main()
{
	// 1. declare variables
	float a, b, add, sub, mul, div;
	cout << fixed << showpoint << setprecision(1);

	// 2. input
	cout << "Input a: (-1 to quit): ";
	cin >> a;

	cout << "Input b: ";
	cin >> b; 

	while( a > 0)	
	{
		// 3. computing
		add = a + b;
		sub = a - b;
		mul = a * b;
		div = a / b;		

		// 4. output
		cout << setprecision(1);
		cout << a << "\t+\t" << b << "\t=\t" << add << "\n";
		cout << a << "\t-\t" << b << "\t=\t" << sub << "\n";
		cout << a << "\t*\t" << b << "\t=\t" << mul << "\n";
		cout << a << "\t/\t" << b << "\t=\t" << div << "\n";

		cout << "Input a: (-1 to quit): ";
       		cin >> a;
		cout << "Input b: ";
		cin >> b;
	}

	return 0;
}