nag_dspsvx (f07pbc) Example Program Results Solution(s) 1 2 1 -5.0000 2.0000 2 -2.0000 3.0000 3 1.0000 4.0000 4 4.0000 1.0000 Backward errors (machine-dependent) 1.4e-16 1.0e-16 Estimated forward error bounds (machine-dependent) 2.5e-14 3.2e-14 Estimate of reciprocal condition number 1.3e-02