nag_ztrrfs (f07tvc) Example Program Results

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

Backward errors (machine-dependent)
    6.2e-17     2.7e-17 
Estimated forward error bounds (machine-dependent)
    2.9e-14     3.2e-14