nag_real_sym_posdef_lin_solve (f04bdc) Example Program Results Solution 1 2 1 1.0000 4.0000 2 -1.0000 3.0000 3 2.0000 2.0000 4 -3.0000 1.0000 Estimate of condition number 9.7e+01 Estimate of error bound for computed solutions 1.1e-14