| F02BJF | All eigenvalues and optionally eigenvectors of generalized eigenproblem by QZ algorithm, real matrices (Black Box) |
| F08WEF | Orthogonal reduction of a pair of real general matrices to generalized upper Hessenberg form |
| F08WHF | Balance a pair of real general matrices |
| F08WJF | Transform eigenvectors of a pair of real balanced matrices to those of original matrix pair supplied to F08WHF |
| F08XEF | Eigenvalues and generalized Schur factorization of real generalized upper Hessenberg matrix reduced from a pair of real general matrices |
| F08YKF | Left and right eigenvectors of a pair of real upper quasi-triangular matrices |