fork download
copy 
  1. //Jacklyn Isordia             CSC5            Chapter 3, P. 146, #17
  2. //
  3. /**************************************************************
  4.  *
  5.  * Calculate Monthly Loan Payments
  6.  * ____________________________________________________________
  7.  * This program calculates the monthly payment for a loan using
  8.  * the formula:
  9.  * 
  10.  * Pyament = Rate * (1 + Rate)^N
  11.  *           --------------------  * L
  12.  *           ((1 + Rate)^N - 1)
  13.  * 
  14.  * Rate = monthly interest rate
  15.  * N    = number of payment
  16.  * L    = loan amount
  17.  * ____________________________________________________________
  18.  * INPUT
  19.  *   loanAmount      : total amount of loan
  20.  *   annualRate      : annual interest rate
  21.  *   numPayments     : number of payments
  22.  * 
  23.  * OUTPUT
  24.  *   monthlyPayment  : payment due of loan
  25.  *   annualRate      : total amount paid
  26.  *   interestPaid    : total interest paid
  27.  *
  28.  **************************************************************/
  29.  #include <iostream>
  30.  #include <iomanip>
  31.  #include <cmath>
  32.  using namespace std;
  33.  
  34.  int main()
  35.  { 
  36.      float loanAmount;
  37.      float annualRate;
  38.      float monthlyRate;
  39.      int numPayments;
  40.  
  41.      float monthlyPayment;
  42.      float amountPaidBack;
  43.      float interestPaid;
  44.  
  45.  //
  46.  //	 Input Values
  47.  //
  48. 	 cout << "Enter loan amount: ";
  49. 	 cin >> loanAmount;
  50.  
  51. 	 cout << "Enter annual interest rate (percent): ";
  52. 	 cin >> annualRate;
  53.  
  54. 	 cout << "Enter nubmer of payments: ";
  55. 	 cin >> numPayments;
  56.  
  57.  //
  58.  //	 Convert Interest Rate
  59.  //
  60. 	 monthlyRate = (annualRate / 100) /12;
  61.  
  62.  //
  63.  //	 Compute Monthly Payment
  64.  //
  65. 	 monthlyPayment =
  66. 		 monthlyRate * pow((1 + monthlyRate), numPayments) /
  67. 		 (pow((1 + monthlyRate), numPayments) - 1) * loanAmount;
  68.  
  69.  //
  70.  //	 Compute Totals
  71.  //
  72. 	 amountPaidBack = monthlyPayment * numPayments;
  73. 	 interestPaid = amountPaidBack - loanAmount;
  74.  
  75.  //
  76.  //	 Output Result
  77.  //
  78. 	 cout << fixed << setprecision(2);
  79.  
  80. 	 cout << endl;
  81. 	 cout << "Loan Amount:			  $" << loanAmount << endl;
  82. 	 cout << "Monthly Interest Rate:  " << monthlyRate * 100 << "%" << endl;
  83. 	 cout << "Number of Payments:	  " << numPayments << endl;
  84. 	 cout << "Monthly Payment:	 	  $" << monthlyPayment << endl;
  85. 	 cout << "Amount Paid Back:		  $" << amountPaidBack << endl;
  86. 	 cout << "Interest Paid:		  $" << interestPaid << endl;
  87.  
  88. 	 return 0;
  89.  }
Success #stdin #stdout 0.01s 5320KB
comments (?)
stdin
copy 
10000
12
36
stdout
copy 
Enter loan amount: Enter annual interest rate (percent): Enter nubmer of payments: 
Loan Amount:			  $10000.00
Monthly Interest Rate:  1.00%
Number of Payments:	  36
Monthly Payment:	 	  $332.14
Amount Paid Back:		  $11957.16
Interest Paid:		  $1957.16
https://ideone.com/sl2TaU
Chapter 3 P. 146 #17
language:
C++ (gcc 8.3)
created:
4 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!