F07BHF Example Program Results

 Solution(s)
             1          2
 1     -2.0000     1.0000
 2      3.0000    -4.0000
 3      1.0000     7.0000
 4     -4.0000    -2.0000

 Backward errors (machine-dependent)
       1.1E-16    9.9E-17
 Estimated forward error bounds (machine-dependent)
       1.6E-14    1.9E-14