Thread: erro help newbie at C++

Code:

#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 monthlyPayments = 1 - pow((1 +
  monthlyInterestRate),
  numberPayments);
  
  monthlyPayment = monthlyInterestRate/
   monthlyPayment;
  monthlyPayment = loanAmount *
   monthlyPayment;  
  
  std::cout << "Assuming a loan in the 
  ammount of £" << loanAmount
  << ", at " << annualInterestRate
  << "% interest, over " << loanlength
  << " years, the monthly payment would 
  be £";
  
  std::cout.setf(std::ios_base::fixed);
  std::cout.setf(std::ios_base::
   showpoint);
  std::cout.percision(2);
  std::cout << monthlyPayment << ".\n\n";
  
  std::cout << "Press enter or return to 
  continue.\n";
  std::cin.get();
  
   return 0;
 }

i am getting a error on this part of the code on the top line

Code:

monthlyPayment = monthlyInterestRate/
   monthlyPayment;
  monthlyPayment = loanAmount *
   monthlyPayment;

please post the error message

sorry here it is

24 C:\temp\Untitled1.cpp
`monthlyPayment' undeclared (first use this function)

this code is what im doing out of c++ book and a have write it out word for word

thanks all got it sorted

Originally Posted by raze

this code is what im doing out of c++ book and a have write it out word for word

most books contain errors, some are not proofread very well before publishing. You should get online with the publisher to see if they have electronic corrections you can download. Some publishers/authors also provide free electronic copies of the source code.