Question

C Programming:

Create code that will allow the user to input their initial investment, their monthly deposit into their investment, the annual interest rate, and the years to calculate your monthly investment.

The table should have three columns: (1) the month (starting at zero), (2) the total amount invested that month, and (3)the present value of your investment with compound interest at the end of that month.

(YOU CANNOT USE THE POW FUNCTION)

I'm having serious difficulty formulating a loop that gives me the correct amount, it's definitely my equations. PLEASE HELP!!!

Answer 1

#include <stdio.h>

int main()
{
    double balance, rate, deposit, investment;
    int years, i;
    printf("Enter initial investment: ");
    scanf("%lf", &balance);
    printf("Enter annual interest rate: ");
    scanf("%lf", &rate);
    printf("Enter monthly deposit: ");
    scanf("%lf", &deposit);
    printf("Enter number of years: ");
    scanf("%d", &years);
    rate /= 12;
    rate /= 100;
    investment = balance;
    for(i = 0; i < 12*years; ++i) {
       balance += (rate * balance);
       balance += deposit;
       printf("%d\t%lf\t%lf\n", (i+1), investment+((i+1)*deposit), balance);
   }
    return 0;
}

Enter initial inuestment 1000 Enter annual interest rate: 15 9 Enter monthly deposit: 100 Enter number of years: 3 1100.000000 1200.000000 1300.000000 1400.000000 1500.000000 1600.000000 170.000000 1800.000000 1900.000000 2000.000000 2100.000000 2200.000000 2300.000000 2400.000000 2500.000000 2600.000000 2700.000000 2800.000000 2900.000000 3000.000000 3100.000000 3200.000000 3300.000000 3400.000000 3500.000000 3600.000000 3700.000000 3800.000000 3900.000000 4000.000000 4100.000000 4200.000000 4300.000000 4400.000000 4500.000000 4600.000000 1112.500000 1226.406250 1341.736328 1458.508032 1576-739383 1696-448625 1817.654233 1940.374911 2064.629597 2190.437467 2317.817935 2446.790660 2577.375543 2709.592737 2843.462646 2979.005929 3116.243503 3255.196547 3395.886504 3538.335085 3682.564274 3828.596327 3976.453781 126.159454 4277.73644 4431.208152 4586.598254 4743.930733 4903.229867 5064.520240 5227.826743 5393.174577 5560.589260 5730.096625 5901.722833 6075.494369 i0 17 20 21 23 24 25 26 27 28 rocess exited after 10.64 seconds with return value ress any key to continue -. .