Re: [Help-glpk] how to make matrix multiply with mathprog

[xypron]

Hello Haibin

hhb83 wrote:
> 
> ... the problem is that I could not give a value to X, even if I write
> this:
> s.t. position{i in I, j in J, m in K}: X[i,j,m] = 2; 
> the X[i,j,m] are 0, but the position[i,j,m] are all 2. I don't know how to
> deal with this formulation.
> 

x will only have value 2 after the solve statement has been executed.

Please, try the example below.

Best regards

Xypron


var x;
s.t. c : x = 2;
display c;
display x;
solve;
display c;
display x;
end;

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