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/petsc/src/ksp/ksp/utils/lmvm/symbrdn/
H A Dsymbrdn.c138 PetscScalar m_00, m_01, m_11, yjtsj; in SymBroydenRecursiveBasisUpdate() local
156 PetscCall(MatLMVMProductsGetDiagonalValue(B, LMBASIS_Y, LMBASIS_S, j, &yjtsj)); in SymBroydenRecursiveBasisUpdate()
164 phi_j = PhiFromPsi(psi_j, yjtsj, sjtbjsj, yjthjyj); in SymBroydenRecursiveBasisUpdate()
178 m_01 = -phi_j / yjtsj; in SymBroydenRecursiveBasisUpdate()
179 m_11 = (yjtsj + phi_j * sjtbjsj) / (yjtsj * yjtsj); in SymBroydenRecursiveBasisUpdate()