Question

我有一个数学模型,由于规模有点大,想用lingo求解,在此求教

Answer 1

model:

sets:

production/1..5/:;

factory/1..8/:;

market/1..8/:;

season/1..4/:;

link1(market,season,production):d;

link2(factory,season):p;

link3(factory,production):u,m,h;

link4(factory,market):r,g;

link5(production,factory,season):x,c;

link6(production,factory,market,season):s;

endsets

min=@sum(link5(i,j,t):x(i,j,t)*m(j,i))+@sum(link6(i,j,k,t):s(i,j,k,t)*(r(j,k)+g(j,k)))+@sum(link5(i,j,t):c(i,j,t)*h(j,i));

@for(link2(j,t):@sum(production(i):x(i,j,t)*u(j,i))