Searched refs:sig1 (Results 1 – 1 of 1) sorted by relevance
259 PetscReal a, b, c, sig1, sig2; in TaoBNCGComputeScalarScaling() local273 sig1 = (-b + PetscSqrtReal(b * b - 4.0 * a * c)) / (2.0 * a); in TaoBNCGComputeScalarScaling()276 if (sig1 > 0.0) *scale = sig1; in TaoBNCGComputeScalarScaling()