How to use multiple indices for one set

You can use different indices to refer to the elements of the same set.

Suppose we have a set,

code:

Cities

, and a parameter,

code:

Distance

. We want to define

code:

Distance

over 2 dimensions (

code:

from

and

code:

to

) for the same set,

code:

Cities

.

If you didn’t know that AIMMS can handle multiple indices for a set, you might create two new subsets

code:

CitiesFrom

and

code:

CitiesTo

, containing all elements of the set

code:

Cities

, and each with its own index.

Luckily, you can just assign multiple indices to one set.

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