#include<iostream>
#include<cmath>
int main()
{
 unsigned long loanAmount=150000;
 float annualInterestRate=6.0;
 unsigned short loanLength=30;
 const unsigned short MONTHS_IN_YEAR=12;
 float monthlyInterestRate=annualInterestRate/MONTHS_IN_YEAR;
 monthlyInterestRate=monthlyInterestRate/100;
 unsigned short numberPayments=loanLength*MONTHS_IN_YEAR;
 float monthlyPayment=1-pow((1+monthlyInterestRate),-numberPayments);
 monthlyPayment=monthlyInterestRate/monthPayment;
 monthlyPayment=loanAmount*monthlyPayment;
 std::cout<<"Assuming a loanin the amount of $"<<loanAmount<<",at"<<annualInterestRate
  <<"% interdet,over"<<loanLength<<"yeats,the monthly payment would be $";
 std::cout.setf(std::ios_base::fixed);
 std::cout.setf(std::ios_base::showpoint);
 std::cout.precision(2);
 std::cout<<monthlyPayment<<".\n";
 std::cout<<"press Enter or return to continue";
 std::cin.get();
 return 0;
}