Re: [Fwd: GUSEK exercise review support request]

[Hartmut Henkel]

On Sun, 5 Jun 2022, Andrew Makhorin wrote:
> -------- Forwarded Message --------
> Date: Fri, 3 Jun 2022 16:46:42 -0500
> Subject: GUSEK exercise review support request
> To: mao@gnu.org
> From: Román Leonardo Rodriguez Florián <rleonardorodriguez@gmail.com>
>       Kind regards Andrew,
>
>       I hope you are very well, I would like to ask for your support, if you 
> can help me by reviewing the GUSEK exercise that I am sending you attached,
>       I think I am indexing wrong.
>
>       Reading model section from A_mixture_problem(ALGEBRAICO).mod...
>       A_mixture_problem(ALGEBRAIC).mod:23: syntax error in literal set
>       Context: i ] ; subject to REQ_MIN_SEM { i in seeds } : sum { i in
>       MathProg model processing error

This error goes away when you move *_rec_cant[i,j] to the left side and
put the entire sum{j in mezclas} term it into brackets:

subject to REQ_MIN_SEM  {i in semillas}:  sum{j in mezclas} (1*libras[i,j] - 
min_req_cant[i,j]) >= 0 ;
# Restricción del Porcentajes máximos  Semillas en Mezcla NORMAL
subject to REQ_MAX_SEM  {i in semillas}:  sum{j in mezclas} (1*libras[i,j] - 
max_req_cant[i,j]) <= 0 ;

There remains another error, something with data...

Best Regards, Hartmut