Declare two exceptions in an equation

Specific Domains Optimization (Mathematical)
1

Hi, I’m trying to declare two exceptions in the following equation but it doesn’t work like this:

e52[i=1:29,k=1:29;i != L,k != L], -lambdaVI[i] <= M*BCC[i,k]

2

Hi!
Could you provide more details, ideally a minimal working example?
See also

1 Like
3

Thanks for answer. For example the model could be likes this

using JuMP
using CPLEX

ICC = Model(CPLEX.Optimizer)

M = 6e5
L = 1

@variables(ICC,begin
lambdaVI[1:29]
BCC[1:29,1:29], Bin
end)

@constraints(ICC,begin
e51[i=1:29;i != L], lambdaVI[i] >= 0
e52[i=1:29,k=1:29;i != L,k != L], -lambdaVI[i] <= M*(BCC[i,k])
end)

e51 will generate equations for i=2:29 and I want it to do the same in e52 for i=2:29 and k=2:29. I know I can declare them like that, but what I want to do next is a loop changing L = 1:29.

4

Use binary logic:

[i=1:29, k=1:29; (i != L) && (k != L)]
2 Likes
5

Thanks, it worked.