Originally posted by: y82li

I build model using C++ and cplex concert technology. The model works. But how can I display and export the constraint matrix A, and rhs b, etc.

Please give an example!

Thank you!
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Originally posted by: SystemAdmin

Please check the manual!
The method cplex.exportModel() should do what you want. I think that you can also just pipe your CPLEX object to a stream using the << operator: cout << cplex.

Tobias
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Originally posted by: SystemAdmin

// assume model has been built and extracted to IloCplex cplex
// build model
cplex.exportModel("mymodel.lp");  // exports model in LP format
// ... or ...
cplex.exportModel("mymodel.mps"); // exports model in MPS format

If you want to be able to extract the constraint matrix, right hand side vector etc. separately (perhaps to feed into some other program), the MPS format is probably more suitable.

Paul

Mathematicians are like Frenchmen: whenever you say something to them, they translate it into their own language, and at once it is something entirely different. (Goethe)
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Originally posted by: y82li

Thank you, Dr. Achterberg and Prof Rubin. Your response is so clear and help me out already.
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