At 1:42am -0400 Mon, 02 Jul 2012, Glpk Xypron wrote:
there is no function that will return an element of a set (except for
one-dimensional numeric sets).
You can create subsets.
set X, dimen 2 := {(5, 7), (1, 10), (23, -3), ("y", "x"), ("a", "abc")};
set S := setof{(i,j) in X : forall{(k,l) in X} i <=k && j <= l} (i,j);
It is so very helpful to be answered in context of my question. Thank
you! I have been doing a variant of this, but again, your's is much
cleaner. Thank you for the snippet.
Kevin
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