| f11dac | Incomplete LU factorization (nonsymmetric) |
| f11dcc | Solver with incomplete LU preconditioning (nonsymmetric) |
| f11jac | Incomplete Cholesky factorization (symmetric) |
| f11jcc | Solver with incomplete Cholesky preconditioning (symmetric) |
| s14bac | Incomplete Gamma functions P(a,x) and Q(a,x) |