debug bfgssteps 1000 comment convergence tolerance is norm(gradient)=1e-3, or that RMS(gradient)=1e-3 / sqrt(3*natoms) = 9.36585D-05 comment bfgsconv 9.36585D-05 nohess eigenonly 1D-13 0.99 USEDIAG 3 BFGSCONV 1D10 CONVERGE 1D10 maxbfgs 0.2 0.3 updates 4 30 READVEC