751     if (rho < neP->eta2) delta *= neP->t1;                     /* shrink the region */  in SNESSolve_NEWTONTR()
848 …ionsReal("-snes_tr_eta2", "eta2", "SNESNewtonTRSetUpdateParameters", ctx->eta2, &ctx->eta2, NULL));  in SNESSetFromOptions_NEWTONTR()
882 …(viewer, "    eta1=%g, eta2=%g, eta3=%g\n", (double)tr->eta1, (double)tr->eta2, (double)tr->eta3));  in SNESView_NEWTONTR()
1021 PetscErrorCode SNESNewtonTRSetUpdateParameters(SNES snes, PetscReal eta1, PetscReal eta2, PetscReal…  in SNESNewtonTRSetUpdateParameters()  argument
1028   PetscValidLogicalCollectiveReal(snes, eta2, 3);  in SNESNewtonTRSetUpdateParameters()
1037     if (eta2 == PETSC_DETERMINE) eta2 = tr->default_eta2;  in SNESNewtonTRSetUpdateParameters()
1042     if (eta2 != PETSC_CURRENT) tr->eta2 = eta2;  in SNESNewtonTRSetUpdateParameters()
1069 PetscErrorCode SNESNewtonTRGetUpdateParameters(SNES snes, PetscReal *eta1, PetscReal *eta2, PetscRe…  in SNESNewtonTRGetUpdateParameters()  argument
1077   if (eta2) PetscAssertPointer(eta2, 3);  in SNESNewtonTRGetUpdateParameters()
1085   if (eta2) *eta2 = tr->eta2;  in SNESNewtonTRGetUpdateParameters()
1146   PetscObjectParameterSetDefault(neP, eta2, 0.25);  in SNESCreate_NEWTONTR()