Thread: Help with assigning values to arrays/printing arrays

Hi, I have just begun to learn C and I have come across the following question:

Using a for loop, construct two 100 element arrays, x and y, such that element i of x stores the value sin(2*pi*i/100)) and the corresponding element of y stores cos((2*pi*i/100)). Print the values stored in the elements of x and y as you calculate them.

I have attempted to solve it but I'm not sure why the value 0 is only being printed, maybe I haven't assigned sin(2i/100)) and cos((2i/100)) to the arrays properly?


Here is my attempt at the solution:

Code:

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

int main ()
{

     /*Define arrays*/
     int x[100];
     int y[100];
     int i; 
   
         /* For loops for x and y using i*/
         
         for (i=0; i<100; i++)
             {
             
             
             x[i] = sin (((2.0*M_PI)*i)/100.0);
             y[i] = cos (((2.0*M_PI)*i)/100.0);
             
             
             printf(" Value of x %d: %d\n", i, x[i]);
             printf(" Value of y %d: %d\n", i, y[i]);
             
             
             }
     return(0);

}

Thanks

Thank you for your help : D

Also, I wondering why it works with double instead of int?