257 PetscErrorCode TaoBNCGComputeScalarScaling(PetscReal yty, PetscReal yts, PetscReal sts, PetscReal *…  in TaoBNCGComputeScalarScaling()  argument
263   if (1.0 == alpha) *scale = yts / yty;  in TaoBNCGComputeScalarScaling()
267     a = yty;  in TaoBNCGComputeScalarScaling()
634           cg->yty = ynorm2;  in TaoBNCGStepDirectionUpdate()
677         cg->yty = ynorm2;  in TaoBNCGStepDirectionUpdate()
730           cg->yty = ynorm2;  in TaoBNCGStepDirectionUpdate()
773       cg->yty = ynorm2;  in TaoBNCGStepDirectionUpdate()
777         PetscCall(TaoBNCGComputeScalarScaling(cg->yty, cg->yts, cg->sts, &tau_k, cg->alpha));  in TaoBNCGStepDirectionUpdate()
779         beta = tau_k * (gkp1_yk / dk_yk - cg->yty * gd / (dk_yk * dk_yk)) - step * tmp;  in TaoBNCGStepDirectionUpdate()
802       cg->yty = ynorm2;  in TaoBNCGStepDirectionUpdate()
806         PetscCall(TaoBNCGComputeScalarScaling(cg->yty, cg->yts, cg->sts, &tau_k, cg->alpha));  in TaoBNCGStepDirectionUpdate()
809         tmp   = tau_k * gkp1_yk / cg->yty;  in TaoBNCGStepDirectionUpdate()
833       cg->yty = ynorm2;  in TaoBNCGStepDirectionUpdate()
837 …PetscCall(TaoBNCGComputeScalarScaling(cg->yty, step * dk_yk, snorm * snorm, &tau_bfgs, cg->bfgs_sc…  in TaoBNCGStepDirectionUpdate()
838 …PetscCall(TaoBNCGComputeScalarScaling(cg->yty, step * dk_yk, snorm * snorm, &tau_dfp, cg->dfp_scal…  in TaoBNCGStepDirectionUpdate()
843         tmp  = cg->theta * tau_bfgs * gd / dk_yk + (1 - cg->theta) * tau_dfp * gkp1_yk / cg->yty;  in TaoBNCGStepDirectionUpdate()
844 …beta = cg->theta * tau_bfgs * (gkp1_yk / dk_yk - cg->yty * gd / (dk_yk * dk_yk)) - step * gd / dk_…  in TaoBNCGStepDirectionUpdate()