nag_ztprfs (f07uvc) 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