Thread: this code doesn't work please help me debug

#include <stdio.h>
#include <math.h>

int main(void)

{

double r, a, p, x, powr, n;



printf("How long is the loan in years?\n");

scanf("%d", &n);

n = n / 12;

printf("How much did you borrow?\n");

scanf("%lf", &a);

printf("What is it's interest?\n");

scanf("%lf", &r);

x = r + 1;

powr = pow((double) x , (double) n);

p = (r * powr ) / ( powr - 1 );

printf("your monthly payment is : %f", p);

return 0;

}



see any errors?

Code:

#include <stdio.h>
#include <math.h>

int main(void)
{
     double r, a, p, x, powr, n;

    printf("How long is the loan in years?\n");
    scanf("%d", &n);    /* n is a double not an integer !! So don't use %d */

    n = n / 12;

    printf("How much did you borrow?\n");

    scanf("%lf", &a);

    printf("What is its interest?\n");

    scanf("%lf", &r);

    x = r + 1;

    powr = pow((double) x , (double) n);

    p = (r * powr ) / ( powr - 1 );

    printf("your monthly payment is : %f", p);

    return 0;

}