| F01LHF | LU factorization of real almost block diagonal matrix |
| F04LHF | Solution of real almost block diagonal simultaneous linear equations (coefficient matrix already factorized by F01LHF) |
| F06FCF | Multiply real vector by diagonal matrix |
| F06HCF | Multiply complex vector by complex diagonal matrix |
| F06KCF | Multiply complex vector by real diagonal matrix |