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double maturityCalc (double invest, float interestR, float years, int compound)
{
double interestT = 0;
double epon = 0;
interestT = (1+((interestR/100) / compound)); // =(1+P/M)
epon = (years * compound); //^(Y*M)
double result = invest * pow (interestT, epon); //Finally, multiply the investment into the total interest
return result;
}
int maturityDriver()
{
double invest = 0;
float interestR = 0;
float years = 0;
int compound = 0;
double maturity = 0;
cout << "This program will calcuate a maturity. Please enter the following: \n";
//ask user for input
cout << "\nInital investment: ";
cin >> invest;
cout << "\n";
cout << "Interest rate, in percentage: ";
cin >> interestR;
cout << "\n";
cout << "Total years of maturity: ";
cin >> years;
cout << "\n";
cout << "Compound, number of times interest is applied: ";
cin >> compound;
cout << "\n";
maturity = maturityCalc(invest, interestR, years, compound);
cout << "Your maturity is: " << maturity << "\n";
system ("pause");
return 0;
}
double loanPay (int loan, float rate, int payment)
{
float baseLoan = 0;
double numer = 0;
double denom = 0;
double resultB = 0;
double resultF = 0;
double resultT = 0;
baseLoan = (1 + (rate/1200));
resultB = pow ((double) baseLoan, (double) payment);
numer = ((double) rate/1200) * resultB;
denom = resultB - 1;
resultF = numer / denom;
resultT = resultF * loan;
return resultT;
}
int loanDriver()
{
cout << "This program will calculate your monthly loan payments,\n";
cout << "please enter the following: \n";
int loan, payment = 0; //L and N, Loan amount and number of payments
float rate = 0; //R, interest rate
double getLoan = 0; //calls getloan
cout << "\nLoan amount: ";
cin >> loan;
cout << "\n";
cout << "Interest Rate, in percentage: ";
cin >> rate;
cout << "\n";
cout << "Number of payments: ";
cin >> payment;
cout << "\n";
getLoan = loanPay(loan,rate,payment);
cout << "Your monthly loan payment is: " << getLoan << "\n"; //display results
system ("pause");
return 0;
}
int _tmain(int argc, _TCHAR* argv[])
{
cout << "This program is designed to calculate a Maturity value of an investment or \n";
cout << "the monthly payments on a loan. Please enter the 1 or 2. \n";
cout << "1) Maturity Calculator \n";
cout << "2) Monthly Loan Payments \n";
char response = ' ';
cin >> response;
if (response == '1')
{
maturityDriver(); //calls maturity function
}
else if (response == '2')
{
loanDriver(); //calls loan function
}
else
{
cout << "You entered in an invalid option. \n";
system("pause");
}
return 0;
}
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