to Top</a>
% </html>
%% How to use it? 
% It's based on Matlab objects so you need to construct the object first,
% i.e. initialize/read in the problem 
%
%   problem = penlab(problem_data);
%
% Then you can optionally edit some stuff before calling the solver itself,
% for example, set up the user data to be passed to the callbacks, set
% starting point, set optional parameters,... 
% Typically you just change the appropriate bits in the structure:
%
%   problem.xinit = ... 
%   problem.Yinit