Example description

nag_lapackeig_dggesx (f08xbc) Example Program Results

 Matrix A
            1          2          3          4
 1      3.9000    12.5000   -34.5000    -0.5000
 2      4.3000    21.5000   -47.5000     7.5000
 3      4.3000    21.5000   -43.5000     3.5000
 4      4.4000    26.0000   -46.0000     6.0000

 Matrix B
            1          2          3          4
 1      1.0000     2.0000    -3.0000     1.0000
 2      1.0000     3.0000    -5.0000     4.0000
 3      1.0000     3.0000    -4.0000     3.0000
 4      1.0000     3.0000    -4.0000     4.0000

Number of sorted eigenvalues =    2

The selected eigenvalues are:
  1 (   2.0000e+00,    0.0000e+00)
  2 (   4.0000e+00,    0.0000e+00)

For the selected eigenvalues,
the reciprocals of projection norms onto the deflating subspaces are
 for left  subspace, rcond =    1.9e-01
 for right subspace, rcond =    1.8e-02

 asymptotic error bound    =    5.7e-14

For the left and right deflating subspaces,
reciprocal condition numbers are:
 for left  subspace, rcond =    5.4e-02
 for right subspace, rcond =    9.0e-02

 approximate error bound   =    1.2e-13