nag_dgtrfs (f07chc) Example Program Results

 Solution(s)
            1          2
 1     -4.0000     5.0000
 2      7.0000    -4.0000
 3      3.0000    -3.0000
 4     -4.0000    -2.0000
 5     -3.0000     1.0000

Backward errors (machine-dependent)
    7.2e-17     5.9e-17 

Estimated forward error bounds (machine-dependent)
    9.4e-15     1.4e-14