43   PetscReal f_min, ftrial, prered, actred, kappa, sigma, resnorm;  in TaoBNKInitialize()  local
174             PetscCall(VecDot(bnk->X_inactive, bnk->inactive_work, &prered));  in TaoBNKInitialize()
179 …        prered = tao->trust * (bnk->gnorm - 0.5 * tao->trust * prered / (bnk->gnorm * bnk->gnorm));  in TaoBNKInitialize()
181 …        if ((PetscAbsScalar(actred) <= bnk->epsilon) && (PetscAbsScalar(prered) <= bnk->epsilon)) {  in TaoBNKInitialize()
184               kappa = actred / prered;  in TaoBNKInitialize()
187 …m * tao->trust / (bnk->theta_i * bnk->gnorm * tao->trust + (1.0 - bnk->theta_i) * prered - actred);  in TaoBNKInitialize()
188 …m * tao->trust / (bnk->theta_i * bnk->gnorm * tao->trust - (1.0 + bnk->theta_i) * prered + actred);  in TaoBNKInitialize()
523 PetscErrorCode TaoBNKRecomputePred(Tao tao, Vec S, PetscReal *prered)  in TaoBNKRecomputePred()  argument
541   PetscCall(VecDot(bnk->inactive_work, bnk->X_inactive, prered));  in TaoBNKRecomputePred()
792 PetscErrorCode TaoBNKUpdateTrustRadius(Tao tao, PetscReal prered, PetscReal actred, PetscInt update…  in TaoBNKUpdateTrustRadius()  argument
835       if ((prered < 0.0) || PetscIsInfOrNanReal(prered)) {  in TaoBNKUpdateTrustRadius()
844 …PetscMax(1.0, PetscAbsScalar(bnk->f)) * bnk->epsilon) && (PetscAbsScalar(prered) <= PetscMax(1.0, …  in TaoBNKUpdateTrustRadius()
847             kappa = actred / prered;  in TaoBNKUpdateTrustRadius()
883       if (prered < 0.0) {  in TaoBNKUpdateTrustRadius()
892 …        if ((PetscAbsScalar(actred) <= bnk->epsilon) && (PetscAbsScalar(prered) <= bnk->epsilon)) {  in TaoBNKUpdateTrustRadius()
895             kappa = actred / prered;  in TaoBNKUpdateTrustRadius()
899           tau_1   = bnk->theta * gdx / (bnk->theta * gdx - (1.0 - bnk->theta) * prered + actred);  in TaoBNKUpdateTrustRadius()
900           tau_2   = bnk->theta * gdx / (bnk->theta * gdx + (1.0 + bnk->theta) * prered - actred);  in TaoBNKUpdateTrustRadius()