);  plot (,[sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{}); plot (,[sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{}); plot (,[sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{});  plot (,[-sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{}); plot (,[-sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{}); plot (,[-sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{});  plot (,[sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{}); plot (,[sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{}); plot (,[sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{});  plot (,[-sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{}); plot (,[-sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{}); plot (,[-sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{});  plot ([sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{},); plot ([sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{},); plot ([sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{},);  plot ([-sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{},); plot ([-sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{},); plot ([-sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{},);  plot ([sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{},); plot ([sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{},); plot ([sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{},);  plot ([-sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{},); plot ([-sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{},); plot ([-sqrt(0+0.0)\*sqrt(0-/(0-0.0))]{},);  