LinOptimointi.jl

# Lineaarinen optimointi
# "Advanced Engineering Mathematics", Sec 21.4 probl 5,s 1129
# Juhani Kaukoranta 1.3.2021
# Julia-ohjelma

using GLPK, JuMP;

model = Model(GLPK.Optimizer);
#set_optimizer_attribute(model, "msg_lev", GLPK.MSG_OFF)

@variables model begin
    x1 >= 0
    x2 >= 0
    x3 >= 0
end;

@constraints model begin
   3x1 + x2 <= 450
   2x2 + 3x3 <= 900
   2x1 + x2 <= 350
end;

@objective model Max begin
    10x1 +  8x2 + 5x3
end;

print(model);
optimize!(model);
@show value(x1);
@show value(x2);
@show value(x3);
@show objective_value(model);
termination_status(model)