128     Scalar pnorm, xnorm, fnorm1, actred, dirder, prered;  variable
293         actred = -1.;  in minimizeOneStep()
295             actred = 1. - numext::abs2(fnorm1 / fnorm);  in minimizeOneStep()
309             ratio = actred / prered;  in minimizeOneStep()
313             if (actred >= 0.)  in minimizeOneStep()
315             if (actred < 0.)  in minimizeOneStep()
316                 temp = Scalar(.5) * dirder / (dirder + Scalar(.5) * actred);  in minimizeOneStep()
339 …if (abs(actred) <= parameters.ftol && prered <= parameters.ftol && Scalar(.5) * ratio <= 1. && del…  in minimizeOneStep()
341         if (abs(actred) <= parameters.ftol && prered <= parameters.ftol && Scalar(.5) * ratio <= 1.)  in minimizeOneStep()
349 …if (abs(actred) <= NumTraits<Scalar>::epsilon() && prered <= NumTraits<Scalar>::epsilon() && Scala…  in minimizeOneStep()
543         actred = -1.;  in minimizeOptimumStorageOneStep()
545             actred = 1. - numext::abs2(fnorm1 / fnorm);  in minimizeOptimumStorageOneStep()
559             ratio = actred / prered;  in minimizeOptimumStorageOneStep()
563             if (actred >= 0.)  in minimizeOptimumStorageOneStep()
565             if (actred < 0.)  in minimizeOptimumStorageOneStep()
566                 temp = Scalar(.5) * dirder / (dirder + Scalar(.5) * actred);  in minimizeOptimumStorageOneStep()
589 …if (abs(actred) <= parameters.ftol && prered <= parameters.ftol && Scalar(.5) * ratio <= 1. && del…  in minimizeOptimumStorageOneStep()
591         if (abs(actred) <= parameters.ftol && prered <= parameters.ftol && Scalar(.5) * ratio <= 1.)  in minimizeOptimumStorageOneStep()
599 …if (abs(actred) <= NumTraits<Scalar>::epsilon() && prered <= NumTraits<Scalar>::epsilon() && Scala…  in minimizeOptimumStorageOneStep()