Searched refs:sqrt_disc (Results 1 – 1 of 1) sorted by relevance
267 PetscReal sqrt_disc = PetscSqrtReal(b * b - 4 * a * c); in SymBroydenRescaleUpdateDiagonal() local272 PetscReal denom = PetscMax(-b - sqrt_disc, ldb->tol); in SymBroydenRescaleUpdateDiagonal()278 sigma = (-b - sqrt_disc) / denom; in SymBroydenRescaleUpdateDiagonal()284 sigma = (-b + sqrt_disc) / denom; in SymBroydenRescaleUpdateDiagonal()286 PetscReal denom = PetscMax(-b + sqrt_disc, ldb->tol); in SymBroydenRescaleUpdateDiagonal()