Question

If P dollars (aka principal) is invested at r% interest compounded annually, then the future value of the investment after n years is given by the formula

Future value = P(1 + r/100)n

Demonstrate your ability to use C++ syntax to design and develop a program to accept the principal, interest rate and years and displayed the computed future value with 2 decimal places. Use the pow function for this computation. The loop is controlled via the sentinel value, ‘E’. Include in your answer the TWO include files that provides the requirements to display with 2 decimal places and the pow function.

Answer 1

// C++ program to calculate compound interest

#include<iostream>

#include<math.h>

using namespace std;

int main()

{

    float p,r,n,Future_value;

    cout<<"Enter Principle, Rate and Years:\n";

    cin>>p>>r>>n;

    Future_value=p*pow((1+r/100),n);

    cout<<"\nCompound Interest = "<<Future_value;

    return 0;

}