forsin.c


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/* File: forsin.c
   calculate the function sinc(x) = sin(x)/x
   for x from -10 to 10 with step size 5 */
 
#include <stdio.h>
#include <math.h>
   
int main()
{
    int x;
    printf("%3c | %5s\n",'x',"sinc(x)");
    printf("-------------\n");
    for(x=-10;x<=10;x+=5)
    {
        printf("%3i | %6.3f\n",x,sin(x));
    }
    return 0;
}