to run before conjugate
                        direction restart {20}</pre><pre>RestartNW               Flag to use restart heuristic of Nocedal and
                        Wright {false}</pre><pre>RestartNWTol            Tolerance for Nocedal and Wright restart
                        heuristic {0.1}</pre><p><b>Limited-memory BFGS Minimization</b> (<tt>lbfgs</tt>) <a href="C_lmbfgs_docs.html">Method details</a></p><pre>M                       Limited memory parameter {5}</pre><p><b>Truncated Newton Minimi