#include<iostream.h>
#include<math.h>
#include<iomanip.h>

void calculate (double &, double &, double &, double &);
void get_info(double &, double &, double &, double &);
void print (double, double);
void main()
{
double principal;
double length;
double low_rate;
double high_rate;
get_info(principal, length, low_rate, high_rate);

calculate (principal, length, low_rate, high_rate);

}

void get_info(double & principal, double & length, double & low_rate, double & high_rate)
{
cout<<"what is the ammount of the loan?"<<endl;
	cin>>principal;
cout<<"what is the length of the loan in years?"<<endl;
	cin>>length;
cout<<"what is the low anual interest rate?"<<endl;
	cin>>low_rate;
cout<<"what is the high anual interest rate?"<<endl;
	cin>>high_rate;
}

void calculate (double & principal, double & length, double & low_rate, double & high_rate)
{
length *=12;

double c;

double monthly_payment;
cout<<"Annual Interest Rate"<<setw(25)<<"Monthly Payment"<<endl;
while(high_rate +0.25>= low_rate)
	{
	low_rate /=100;
	low_rate/=12;
	c =  pow((1+low_rate),length);
	monthly_payment = (principal*low_rate*c)/(c-1);
	low_rate*=100;
	low_rate*=12;

	print(low_rate,monthly_payment);

	low_rate +=.25;
	}

}

void print(double low_rate, double montly_payment)
{

	cout<<setiosflags(ios::fixed);
	cout<<setprecision(2);
	cout<<setw(10)<<low_rate;
	cout<<setw(30)<<montly_payment<<endl;
}