$hessian                                                                        
        0.2437917434   0.0744269236  -0.1892321769  -0.0608210334  -0.1045465413
       -0.0027177446  -0.1829707100   0.0301196177   0.1919499215
        0.0744269236   0.4182157950   0.1718908100  -0.1340226860  -0.3639294752
       -0.0835434356   0.0595957624  -0.0542863198  -0.0883473743
       -0.1892321769   0.1718908100   0.2802459042  -0.0198343846  -0.1116484641
       -0.0459219017   0.2090665615  -0.0602423459  -0.2343240025
       -0.0608210334  -0.1340226860  -0.0198343846   0.0536144498   0.1067306668
        0.0108574159   0.0072065836   0.0272920192   0.0089769687
       -0.1045465413  -0.3639294752  -0.1116484641   0.1067306668   0.3794694053
        0.1185898901  -0.0021841255  -0.0155399300  -0.0069414260
       -0.0027177446  -0.0835434356  -0.0459219017   0.0108574159   0.1185898901
        0.0585121456  -0.0081396713  -0.0350464545  -0.0125902439
       -0.1829707100   0.0595957624   0.2090665615   0.0072065836  -0.0021841255
       -0.0081396713   0.1757641264  -0.0574116369  -0.2009268902
        0.0301196177  -0.0542863198  -0.0602423459   0.0272920192  -0.0155399300
       -0.0350464545  -0.0574116369   0.0698262499   0.0952888004
        0.1919499215  -0.0883473743  -0.2343240025   0.0089769687  -0.0069414260
       -0.0125902439  -0.2009268902   0.0952888004   0.2469142464
