Good afternoon,
I'm trying to do a math model using glpk, but it isn't being trivial because the syntax applied in the glpk. I don't understand a message of syntax errors because I don't see how to error. I tried to understand the manual, but some things aren't specified in detail, for example I use the conditional if..then..else, but I can't put the form correct because I don't if to need use parenthesis. So I hope that you can look at my implementation and say me where error are.
p.s:The problem that I'm implements is the facility location problem
Thanks.