I get a multi-dimension set and I hope to write the row of the set.
how to describe the red part?
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Hi Renger, Thank you for your reply. in my case, I want to express the relationship between the node and its parent nodes. In previous work, I have got the matrix like fig 1.now I need to write the constraint between the node and its parent nodes, for example, in fig 1, I want to give the constraint...
Hi, Thank you so much for your help. Maybe a misunderstand existing in my text, I try it as your advice, the correct answer is b(j,i,k)$(ord(i) = ord(k))=no;it can realize my target. Due to I am a beginner and no experience in GAMS, I have other questions in my study. How can realize the following a...