thing.c

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

int main()
{
 float pi = 3.141592;
 float i;
 float bulb1;
 float bulb2;
 float bulb3;
 int bulbs_num;
 float offset;


 bulbs_num = 3;
 offset = 100/bulbs_num;

 for (i = 0; i < 2 * pi;i = i + pi/10 ){
   bulb1 = (sin(i-(pi/2)) + 1) * 50;
   bulb2 = (sin((i + offset)-(pi/2)) + 1) * 50;
   bulb3 = (sin((i + 2 * offset)-(pi/2)) + 1) * 50;

   printf("Bulb One Brightness: ");
   printf("%9.6f", bulb1);
   printf("\n");

   printf("Bulb Two Brightness: ");
   printf("%9.6f", bulb2);
   printf("\n");

   printf("Bulb Three Brightness: ");
   printf("%9.6f", bulb3);
   printf("\n");

 }

 return 0;

}