//	File name:	hw4.cpp
//	Author:		Christie Abbott
//	Instructor:	Dr. John Wang
//	Due Date:	Sept. 26, 2007
//	Compiling:	g++ hw4.cpp -o hw4.out
//	Execution:	./hw4.out
//
//	Goal: This program will ouput the balance after the first, second, and third car payments.

#include <iostream>
#include <iomanip>	// setprecision 

using namespace std;

int main()
{
	float bal, pmt, i;
	int k, n;
	
	cout << fixed << showpoint << setprecision(2);

	pmt = 165.25;
	i = 0.09/12.0;
	n = 36;

	// output ..
	cout << "Monthly Payment:\t$" << pmt << "\n";
	cout << "Annual Interest Rate:\t" << i*12*100 << "%\n";
	cout << "Total # of Payments:\t" << n << "\n";

	// computing for the 1st payment
	k = 1;
	bal = pmt *((1 - pow(1 + i, k - n)) / (i));
	cout << "\nBalance after " << k << " payment(s) is:\t$ " << bal << "\n";
	
	k = 2;
	bal = pmt *((1 - pow(1 + i, k - n)) / (i));
	cout << "\nBalance after " << k << " payment(s) is:\t$ " << bal << "\n";

	k = 3;
 	bal = pmt *((1 - pow(1 + i, k - n)) / (i));
	cout << "\nBalance after " << k << " payment(s) is:\t$ " << bal << "\n";

	return 0;
}