/* -*-ePiX-*- */
#include "epix.h"
using namespace ePiX;

int main()
{
  picture(P(-1.25,-1.25), P(1.25,1.25), "1.5 x 1.5in");
  offset(P(0,0.125));

  begin();
  degrees();
  double dp(2);

  bold();
  circle();
  P i0(1,0), i1(0,1), i2(-1,0), i3(0,-1);

  quad(i0, i1, i2, i3);
  line(i0, i2);
  line(i1, i3);

  label(P(0,0), P(-dp,-dp), "$O$", bl);
  label(i0, dp*i0, "$1$", r);
  label(i1, dp*i1, "$i$", t);
  label(i2, dp*i2, "$-1$", l);
  label(i3, dp*i3, "$-i$", b);

  label(P(0,ymin()), P(0,-6), "\\textsc{Fig.~5}", b);

  tikz_format();
  end();
}