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[Help-glpk] Glpsol IF-THEN-ELSE expression problem

From: Bill
Subject: [Help-glpk] Glpsol IF-THEN-ELSE expression problem
Date: Wed, 14 Feb 2007 22:47:47 +0000 (UTC)
User-agent: Loom/3.14 (

Hi everyone,

I'm new to Glpk. I'm trying to model an optimazation problem for university 
timetabling. In the objective function, I need to minimize the following 

g(sum sum T[i,j,k])

g() returns 1 if (sum sum T[i,j,k]) > 0 else 0

The problem is T[i,j,k] is a variable, IF-THEN-ELSE cannot handle variables in 
the logical expression. Is there a way around it?

Can anyone help?

Thank you very much
B. Song

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