| F01BRF | LU factorization of real sparse matrix |
| F01BSF | LU factorization of real sparse matrix with known sparsity pattern |
| F02SDF | Eigenvector of generalized real banded eigenproblem by inverse iteration |
| F04AXF | Solution of real sparse simultaneous linear equations (coefficient matrix already factorized) |
| F04JGF | Least squares (if rank = n) or minimal least squares (if rank < n) solution of m real equations in n unknowns, m ≥ n |