3
  0.927534  -0.286986  -0.239416 -0.0116706
  0.371044   0.783889    0.49784   0.187903
 0.0448023  -0.550597   0.833568    1.04575
         0          0          0          1
  0.942843   0.242206  -0.228875 -0.0675371
 -0.102523    0.86434   0.492347 -0.0724004
  0.317075  -0.440741   0.839769    1.17707
         0          0          0          1
 0.668119  0.713128 -0.212284  -0.28577
-0.557046  0.668552  0.492686 0.0684007
 0.493271 -0.210921  0.843918   1.02426
        0         0         0         1
