Hello, I am very happy that you immediately answer and help to us with FICO Xpress and so save our life. :-)
I have question. How can I write the following index d0? It looks like variable, but I am not sure how to declare it.
Thank you in advance.
Assuming you are working with Mosel, try using something like:
forall(d0 in 1..(D-6)) sum(d in d0..(d0+6)) eta(d) <=6
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