Re: Solver, MILP and Boolean constraints

Thank you very much for your clarification.
I am sorry that I was not too much clear on the issue.

The reason I have sent the email to the list is exactly the following
Cells in my problem (T2:T204) are in the "By changing cells" entry.
Therefore, Gnumeric should not give me that message.


On Mon, 18 Oct 2004 15:44:02 +0200, Jean Bréfort
<jean brefort normalesup org> wrote:
Le samedi 16 octobre 2004 à 14:16 +0000, Massi a écrit :

Hi guys,

I am running a MILP problem with Gnumeric 1.2.13.
The Solver of Gnumeric is able to solve it in less than 1 second, 5
time faster than Excel. However, introducing a Boolean constraint
(i.e. modifiable cells can only assume a binary value, 0 or 1), I get
the following message

Constraint `T2:T204 Bool ' is for a cell that is not an input cell

Since the Handbook of Gnumeric does not actually specify how to input
a binary constraint, I included it as I usually do in Excel.
I am just wondering whether I made a mistake or Boolean constraints do
not work properly.

I would really appreciated your help.

PS: I have been pretty happy to notice that Gnumeric does not have the
200-constraint limit as Excel does. Good job, guys!

The cell for which you add a constraint must be an input cell of the
problem. In other words, it must already be listed in the "By Changing
Cells" entry.

Massi Milani
mamilani gmail com
mam265 cornell edu

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