Originally posted by: HuiD

When I run my model, the error occurred: C[t][d][l] div 80 cannot extract expression.

C[t][d][l] is an int decision variable. 

in the model I wrote dexpr int test[t in Time] = C[t][d][l] div 80;

Please help. 

Thanks

Hui

Hi,

div is not a linear operator allowed by CPLEX extraction but you could rewrite in something that CPLEX allows. (Use + and * )

regards

Originally posted by: HuiD

Thanks. It turns out if I don't use the decision variables for div, it works.