| C05QBF | Solution of a system of nonlinear equations using function values only (easy-to-use) |
| C05QCF | Solution of a system of nonlinear equations using function values only (comprehensive) |
| C05QDF | Solution of a system of nonlinear equations using function values only (reverse communication) |
| C05QSF | Solution of a sparse system of nonlinear equations using function values only (easy-to-use) |
| C05RBF | Solution of a system of nonlinear equations using first derivatives (easy-to-use) |
| C05RCF | Solution of a system of nonlinear equations using first derivatives (comprehensive) |
| C05RDF | Solution of a system of nonlinear equations using first derivatives (reverse communication) |