| f08qhc | Solve real Sylvester matrix equation AX + XB = C, A and B are upper quasi-triangular or transposes |
| f08qkc | Left and right eigenvectors of real upper quasi-triangular matrix |
| f08qlc | Estimates of sensitivities of selected eigenvalues and eigenvectors of real upper quasi-triangular matrix |
| f08ykc | Left and right eigenvectors of a pair of real upper quasi-triangular matrices |