F07HVF 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 8.3E-17 Estimated forward error bounds (machine-dependent) 3.5E-14 3.2E-14