F07PPF Example Program Results

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

 Backward errors (machine-dependent)
       5.1E-17    5.9E-17

 Estimated forward error bounds (machine-dependent)
       2.5E-15    3.0E-15

 Estimate of reciprocal condition number
       1.5E-01