AMPL

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A discussion and help group for AMPL, an algebraic modeling language for optimization problems of many kinds.  AMPL lets people use common notation and familiar concepts to formulate models and examine solutions, while the computer manages communication with appropriate solvers.
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Topics (5720)
Replies Last Post Views
[AMPL 16177] Question by sahebeh.azar
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by AMPL mailing list
[AMPL 16175] Sorry, minos cannot handle logical constraints. exit code 7 - MiniMax Problem by Claudio Jiang-2
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by AMPL mailing list
[AMPL 16150] Iteratively solving by Peter Greistorfer
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by Peter Greistorfer
[AMPL 16170] unformatted data in .dat file by Rupsana Parveen
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by AMPL mailing list
[AMPL 16150] IPOPT does not return correct solution! by mahraz amini
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[AMPL 16131] Constrained summation by Juan Zhang
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by AMPL mailing list
[AMPL 15334] solving problem without satisfying constraint by mahraz amini
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[AMPL 16085] Same Objective with different set of Constraints by khan
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by khan
[AMPL 16155] From variable to parameter by Luca Mencarelli
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by Luca Mencarelli
"Error executing "solve" command:invalid subscript by tingting
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by AMPL mailing list
[AMPL 16145] Equal Resource Allocation Constraint through for loop in AMPL or How? by khan
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[AMPL 16085] computing euclidean distance of two points using their set of coordinates by Nasiru Abdullahi
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[AMPL 16142] error executing solve command by Nasiru Abdullahi
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[AMPL 16131] Excluding indices from a .run file. by Alex Nguyen
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by Alex Nguyen
[AMPL 16115] Index within Index by Zeyad Kassem
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[AMPL 16130] Alternative ways of defining sets/vectors of indices by Lorenzo Magnolfi
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[AMPL 16115] discrete probability mass function by Marco Paga
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[AMPL 16091] Error message ' Gurobi 7.5.0: logical constraint _slogcon[1] is not an indicator constraint.' by fangli3
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[AMPL 13861] Error at _cmdno 8 executing "let" command by M H
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[AMPL 16107] integer infeasible by Marco Paga
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[AMPL 16110] for loop error by 1reachsalman
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[AMPL 16098] Adding date when writing table by Andrea Bustillos
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[AMPL 16098] Using AMPl-Oracle change one column in a registry by Andrea Bustillos
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by AMPL mailing list
[AMPL 15892] Excel Tables in AMPL by stagelsir
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by M I Shafique
[AMPL 16106] AMPL and logical constraints by Danish
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by Danish
[AMPL 16094] Console output, more than black and white? by Peter Greistorfer
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by AMPL mailing list
[AMPL 16098] subsets by Juan Reyes
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[AMPL 16094] Delete, restore and drop and so by Peter Greistorfer
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[AMPL 16036] Defining SOS1 Variables by simon_onair
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by simon_onair
[AMPL 16083] hints with gurobi by Wilmer Henao
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by AMPL mailing list
[AMPL 16050] syntax error by sahebeh.azar
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by sahebeh.azar
[AMPL 16066] Updating NL files changing only bounds by Rodrigo Garcia
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by AMPL mailing list
[AMPL 16076] AMPL events at INFORMS Analytics 2018, April 15-17 by Robert Fourer-2
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by Robert Fourer-2
[AMPL 16069] Conditional operators in constraints by Juan Zhang
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[AMPL 16052] Problem with max function by ronik
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