nag_dpbrfs (f07hhc) Example Program Results

 Solution(s)
            1          2
 1      5.0000    -2.0000
 2     -2.0000     6.0000
 3     -3.0000    -1.0000
 4      1.0000     4.0000

Backward errors (machine-dependent)
    1.1e-16     1.1e-16 
Estimated forward error bounds (machine-dependent)
    2.1e-14     3.0e-14