Hi Michela, I think you're going to need to provide some additional information. Are you modeling this in JuMP by chance?
Cheers, Kevin On Mon, Mar 30, 2015 at 12:25 PM, Michela Di Lullo < [email protected]> wrote: > Hallo everyone! > > how do I model a variable (array of variables) that can either be zero or > in some range not containing zero? > e.g. x∈0∪[a,b] where a>0 > > Thank you in advance for any information! > > Michela >
