> By building a model I have the following problem in defining a set. > First I have a set of numbers, let's say 1 to 25. > This may be defined by: set N := 1..25; > Now I want to create a subset consisting only of the numbers 5, 10, 15, 20, > 25. > Normally, I thought it might be possible by writing: set new_N := 1..25 by > 5; > But this dows not work. The only solution I know is to write: set new_N := 5 > 10 15 20 25; > But for large sets this is would take a lot of time. > Thanks for your time and help!
Probably you get 1 6 11 16 21 ? The following statement is correct: set new_N := 5..25 by 5; For details please see the langauge reference included in the glpk distribution. _______________________________________________ Help-glpk mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-glpk
