C Code for Moire Fringe Pattern Spacing

This c programming code is used to find the moire fringe pattern spacing . You can select the whole c code by clicking the select option and can use it. When you click text, the code will be changed to text format. This c program code will be opened in a new pop up window once you click pop-up from the right corner. You can just copy, paste this c code and use it to find the moire fringe pattern spacing .

#include<stdio.h>
#include<math.h>
int main()
{
  float b,x=30,a=10,d;
  if(x>360)
  {
   printf("Angle should be within 0 to 360");
  }
  else
  {
    b=sin((3.14/180)*(x/2));
    if(b<0)
    {
     b=-1*b;
    }
    d=a/(2*b);    
    printf("Moire Fringe Spacing = %f",d);
  }
  return 0;
}