Contiene: Variational theory and optimal control theory. On the computation of the optimal temperature profile in a tubular reaction vessel. Several trayectory optimization method whith reduces memory requirements. Dynamic programming, Invariant imbedding and quasilinearization: comparisons and interconnections. Minimizing functionals on Hilbert space. Commputational aspects of the time-optimal. An on-line identification scheme for multivariable non-linear systems. Method of convex ascent. Study of an algorithm for dynamic optimization. The application of hybrid computers to the iteractive solution of optimal control problems. Synthesis of optimal controllers using hybrid analo-digital computers. Gradient methods for the optimization of dynamic.