Originally posted by: mrmag

Hello.

I just wonder if it is possible to use IloCos of a variable like in the following example:

IloModel model(env);

IloIntVar a(env,0,360);

model.add(IloMaximize(env,IloCos(a * IloPi / 180.0)));

cout << model << endl;
IloCP cp(model);

if (cp.solve()) {
cout << "cp.getObjValue(): " << cp.getObjValue() << endl;
cout << cp.getValue(a) << endl;
}
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Originally posted by: mrmag

Results of the run are the following:

IloModel model0 = {
obj4 = (cos(0.0174533 * IloIntVar(1)http://0..360 ), IloObjective, Maximize);

}

Concert exception caught: IloAlgorithm cannot extract extractables 3, 5, 4 and 0

So, there is an exception.
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Originally posted by: mrmag

Is it possible to have cos and sin expressions in the model?
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Originally posted by: rdumeur

Dear mrmag,

No, it is not possible to use IloCos in your model. For working around this situation, you will find useful information in this thread:

http://www.ibm.com/developerworks/forums/thread.jspa?threadID=463202&tstart=0

Cheers,
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Originally posted by: mrmag

Hello rdumeur. The table of values helped. Thank you.
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