    1   -0.65292E+10      0.00000E+00      0.65292E+10
    2   -0.33353E+08      0.00000E+00      0.33353E+08
 atrace = -6.5625163884676018E+09
 EIGENVALUE sum = -6.5625163884676008E+09 0.0000000000000000E+00
when comparing A*S with S*LAMBDA,
     the worst error obtained was ( 5.69969E-07, 0.00000E+00)
WHEN MULTIPLYING MODAL MATRIX BY INVERSE MODAL MATRIX
 WORST ERROR IN   DIAGONAL   TERM WAS ( 0.11102E-15, 0.00000E+00)
 WORST ERROR IN OFF-DIAGONAL TERM WAS ( 0.17639E-13, 0.00000E+00)
MODAL MATRIX ... S
                    1                             2
    1    -1.0000E+00     0.0000E+00    -9.9999E-01     0.0000E+00
    2     2.0843E-03     0.0000E+00    -3.9932E-03     0.0000E+00
INVERSE MODAL MATRIX ...SI
                    1                             2
    1    -6.5705E-01    -0.0000E+00     1.6454E+02    -0.0000E+00
    2    -3.4296E-01    -0.0000E+00    -1.6454E+02    -0.0000E+00
