| F08QHF | Solve real Sylvester matrix equation AX + XB = C, A and B are upper quasi-triangular or transposes |
| F08QKF | Left and right eigenvectors of real upper quasi-triangular matrix |
| F08QLF | Estimates of sensitivities of selected eigenvalues and eigenvectors of real upper quasi-triangular matrix |
| F08YKF | Left and right eigenvectors of a pair of real upper quasi-triangular matrices |