Ever wonder what a car payment may be when given the APR, duration, and principal. Here is a simple program that does just that check it out!

//Full Working Program #include <iostream> #include <stdlib.h> //this is required to use system pause #include <math.h> //this is required in order to perform more advanced math using namespace std; int main() { double i,l,r,m,p,cnt=1,tot_interest=0; cout<<"Enter the principal"<<endl; cin>>p; //takes in the amount of the loan cout<<"Enter the interest rate"<<endl; cin>>r; //takes in the interest rate cout<<"Enter the length of the loan in months"<<endl; cin>>m; //takes in the duration of the loan in months r=r/100; //converts the rate into decimal form l=(p*(r/12.0))/(1-(pow((1+r/12.0),-m))); //equation to calculate an amount of a loan cout << "Your car payment will be "<<l<<" dollars"<<endl; system("pause"); //will pause the program allowing the user to be able to see the car payment amount while(cnt<=m) //the loop will continue as long as cnt is less than or equal to the loan duration { i=30.4167*(p*(r/365)); //this will calculate the interest paid in a given month tot_interest=tot_interest+i; //total interest equals what it was plus that interest for the month cout<<"Interest charged in month "<<cnt<<": "<<i<<endl; cout<<""<<endl; cnt++; //cnt is incremented by one each time the loop runs p=p-(l-i); //the principal equals what is was minus the loan after the loan is substracted from interest cout<<"Remaining balance: "<<p<<endl; cout<<""<<endl; } cout<<"Total interest paid "<<tot_interest<<" dollars"<<endl; system("pause"); return 0; }