| dfoptim | Derivative-Free Optimization |
| hjk | Hooke-Jeeves derivative-free minimization algorithm |
| hjkb | Hooke-Jeeves derivative-free minimization algorithm |
| mads | Mesh Adaptive Direct Searches (MADS) algorithm for derivative-free and black-box optimization |
| nmk | Nelder-Mead optimziation algorithm for derivative-free optimization |
| nmkb | Nelder-Mead optimziation algorithm for derivative-free optimization |