nag_zpbrfs (f07hvc) Example Program Results

 Solution(s)
                    1                  2
 1  (-1.0000, 8.0000)  ( 5.0000,-6.0000)
 2  ( 2.0000,-3.0000)  ( 2.0000, 3.0000)
 3  (-4.0000,-5.0000)  (-8.0000, 4.0000)
 4  ( 7.0000, 6.0000)  (-1.0000,-7.0000)

Backward errors (machine-dependent)
    8.2e-17     5.4e-17 
Estimated forward error bounds (machine-dependent)
    3.6e-14     3.0e-14