0   0.0000   1.7205   0.5754   0.0558   0.0465
   0.0000   0.0000   0.0000   1.9142   0.1890   0.0357
   0.0000   0.0000   0.0000   0.0000   1.7169   0.5759
   0.0000   0.0000   0.0000   0.0000   0.0000   1.9118

 The inverse generator is 
  -0.2355   0.5231  -0.0642   0.0077   0.0187  -0.0265
  -0.5568  -0.0568   0.0229   0.0060   0.0363   0.0000
   0.5825   0.0000  -0.0387   0.0052   0.0003  -0.0575
  -0.1754   0.5231   0.0119  -0.0265  -0.0110   0.0076

 The inverse Cholesky factor is 
   0.5774   0.0000