hi everyone .
can anyone pleaseee help me with this model?
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New WinRAR archive.rar (227 KB)
New WinRAR archive.rar (227 KB)
Hi atefe,
The error is self-explanatory enough. Just go to the equation of error and find the used set that is not control either by equation definition or sum or anything that control a set.
best,
On Tue, Aug 5, 2014 at 9:18 AM, atefe angouh wrote:
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