Re: [Help-glpk] glpsol (MIP) "-w" output specification, "-y" operation

[Michael Hennebry]

On Mon, 4 May 2009, Michael Hennebry wrote:

> If the numbers are really small:
>
> Z = SUM Bz[j, k]*max(j, k)
>    j,k
>
> X = SUM Bz[j, k]*j
>    j,k
>
> Y = SUM Bz[j, k]*k
>    j,k

I'd forgotten to add
1 = SUM Bz[j, k]
    j,k

> I think that this is *linearly* equivalent to the preceeding,
> but it has a lot more binaries, so I can't recommend it.
> Rather obviously (X, Y, Z) is constrained
> to the convex hull of its feasible values.

--
Michael   address@hidden
"Pessimist: The glass is half empty.
Optimist:   The glass is half full.
Engineer:   The glass is twice as big as it needs to be."