| F08QHF | Solve real Sylvester matrix equation AX + XB = C, A and B are upper quasi-triangular or transposes |
| F08QVF | Solve complex Sylvester matrix equation AX + XB = C, A and B are upper triangular or conjugate-transposes |
| F08YHF | Solves the real-valued generalized Sylvester equation |
| F08YVF | Solves the complex generalized Sylvester equation |