741     if (PetscIsInfOrNanReal(fkp1)) rho = neP->eta1;  in SNESSolve_NEWTONTR()
744 …else rho = neP->eta1;                           /*  no reduction in quadratic model, step must be …  in SNESSolve_NEWTONTR()
760     if (rho > neP->eta1) {  in SNESSolve_NEWTONTR()
847 …ionsReal("-snes_tr_eta1", "eta1", "SNESNewtonTRSetUpdateParameters", ctx->eta1, &ctx->eta1, NULL));  in SNESSetFromOptions_NEWTONTR()
882 …PetscCall(PetscViewerASCIIPrintf(viewer, "    eta1=%g, eta2=%g, eta3=%g\n", (double)tr->eta1, (dou…  in SNESView_NEWTONTR()
1021 PetscErrorCode SNESNewtonTRSetUpdateParameters(SNES snes, PetscReal eta1, PetscReal eta2, PetscReal…  in SNESNewtonTRSetUpdateParameters()  argument
1027   PetscValidLogicalCollectiveReal(snes, eta1, 2);  in SNESNewtonTRSetUpdateParameters()
1036     if (eta1 == PETSC_DETERMINE) eta1 = tr->default_eta1;  in SNESNewtonTRSetUpdateParameters()
1041     if (eta1 != PETSC_CURRENT) tr->eta1 = eta1;  in SNESNewtonTRSetUpdateParameters()
1069 PetscErrorCode SNESNewtonTRGetUpdateParameters(SNES snes, PetscReal *eta1, PetscReal *eta2, PetscRe…  in SNESNewtonTRGetUpdateParameters()  argument
1076   if (eta1) PetscAssertPointer(eta1, 2);  in SNESNewtonTRGetUpdateParameters()
1084   if (eta1) *eta1 = tr->eta1;  in SNESNewtonTRGetUpdateParameters()
1145   PetscObjectParameterSetDefault(neP, eta1, 0.001);  in SNESCreate_NEWTONTR()