109     Scalar pnorm, xnorm, fnorm1;  variable
242         pnorm = diag.cwiseProduct(wa1).stableNorm();  in solveOneStep()
246             delta = (std::min)(delta,pnorm);  in solveOneStep()
280                 delta = (std::max)(delta, pnorm / Scalar(.5));  in solveOneStep()
282                 delta = pnorm / Scalar(.5);  in solveOneStep()
313 …    if (Scalar(.1) * (std::max)(Scalar(.1) * delta, pnorm) <= NumTraits<Scalar>::epsilon() * xnorm)  in solveOneStep()
326         wa1 = diag.cwiseProduct( diag.cwiseProduct(wa1)/pnorm );  in solveOneStep()
330         wa2 = (wa2-wa3)/pnorm;  in solveOneStep()
485         pnorm = diag.cwiseProduct(wa1).stableNorm();  in solveNumericalDiffOneStep()
489             delta = (std::min)(delta,pnorm);  in solveNumericalDiffOneStep()
523                 delta = (std::max)(delta, pnorm / Scalar(.5));  in solveNumericalDiffOneStep()
525                 delta = pnorm / Scalar(.5);  in solveNumericalDiffOneStep()
556 …    if (Scalar(.1) * (std::max)(Scalar(.1) * delta, pnorm) <= NumTraits<Scalar>::epsilon() * xnorm)  in solveNumericalDiffOneStep()
569         wa1 = diag.cwiseProduct( diag.cwiseProduct(wa1)/pnorm );  in solveNumericalDiffOneStep()
573         wa2 = (wa2-wa3)/pnorm;  in solveNumericalDiffOneStep()