3
  0.947204  -0.228998  -0.224422 -0.0114076
  0.312406    0.81667   0.485233   0.154225
 0.0721613  -0.529726   0.845094    1.04716
         0          0          0          1
  0.934788   0.289708  -0.205524 -0.0869862
 -0.156035   0.854708   0.495104  -0.104804
  0.319098  -0.430749   0.844175    1.16494
         0          0          0          1
 0.602884  0.775717 -0.186529 -0.292028
-0.628457  0.605765  0.487945 0.0575162
   0.4915 -0.176949  0.852711   1.01678
        0         0         0         1
