EASY-OPT Express

EASY-OPT Express is an interactive user interface to solve constrained nonlinear optimization problems. The numerical code is called NLPQL, an implementation of an SQP method, which is frequently used in industry and academia. The mathematical method represents the scientific state-of-the-art. Model functions are defined in a modeling language called PCOMP and are interpreted and evaluated during runtime. It is assumed that all nonlinear functions are differentiable. Gradients are computed automatically. EASY-OPT Express is particularly useful for classroom exercises of optimization courses or to become familiar with optimization routines before starting a real life implementation. The mathematical theory of the algorithm is described in the documentation and the usage of the system is outlined in detail.
<p>Highly efficient sequential quadratic programming method (NLPQL)</p>
<p>Up to 200 variables and 1,000 nonlinear equality and inequality constraints</p>
<p>Flexible modeling language with automatic differentiation</p>
<p>Large number of standard test problems</p>
<p>GUI implemented in form of a database under MS Access 2007</p>
<p>Distribution free runtime version of Access 2007 included</p>
<p>User interface running under Windows XP and Vista, 2K version available on request</p>
<p>Interactive, context-sensitive help</p>
<p>Extensive documentation (pdf)</p>
<p>Numerical algorithms implemented in Fortran as a stand-alone code, executable outside of the GUI</p>
<p>Generation of reports and optimization history plots (Gnuplot)</p>