Test case for https://stackoverflow.com/q/44266715/827263

#include <stdio.h>
#include <math.h>
int main(void) {
    for (int i = 5; i <= 15; i += 5) {
        int i_2 = pow(i, 2);
        printf("pow(%d, 2) = %d\n", i, i_2);
    }
}