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 594] Not reaching optimal solution by chrisjgatti
1
by Robert Fourer-2
[AMPL 556] generate quasi random numbers by ziming guan
3
by ziming guan
[AMPL 590] MPEC by Changzheng Liu
2
by Changzheng Liu
[AMPL 589] represent time slots profiles by Augusto Castelan Car...
0
by Augusto Castelan Car...
[AMPL 581] Avoiding an unbounded/infeasible problem by Bruce Moore-2
2
by Bruce Moore-2
[AMPL 574] Cplex intermediate binary solutions by Adela Pag├Ęs Bernaus
1
by Robert Fourer-2
[AMPL 575] Complementary constraints by antonio-35
2
by Robert Fourer-2
[AMPL 532] Problems with the Cbc solver in Neos by anastasiadis
4
by Robert Fourer-2
[AMPL 551] Unrecovable failure by david-255
1
by Robert Fourer-2
[AMPL 573] unsubscribe by Lahlou BENGHEZAL
0
by Lahlou BENGHEZAL
[AMPL 566] optimal with unscaled infeasibilities by Changzheng Liu-2
2
by Changzheng Liu
[AMPL 562] bug in answer returned by ampl presolve by Steven Harrod
3
by Steven Harrod
[AMPL 557] non-linear constraints by samael
1
by Robert Fourer-2
[AMPL 564] optimal with unscaled infeasibilities by Changzheng Liu
1
by Eli Olinick
[AMPL 559] number of variables and constraints by Steven Harrod
2
by Robert Fourer-2
[AMPL 552] RE: [AMPL] How to get the best bound value for an interger program? by Robert Fourer-2
2
by Robert Fourer-2
[AMPL 530] Basic question on parameters in data files by T. Stoffels
2
by myatec@gmail.com
[AMPL 543] variable declaration by samael
4
by Robert Fourer-2
[AMPL 546] Where can I get an unrestricted stand-alone academic AMPL license from? by Steffen-6
2
by Robert Fourer-2
[AMPL 535] Bound infeasibility column 'x35' by ziming guan
2
by ziming guan
[AMPL 539] Getting Bestnode value by Steven Harrod
0
by Steven Harrod
[AMPL 527] Efficiency of large AMPL sets/param arrays by Steffen-6
3
by Steffen-6
[AMPL 531] Question about "integerality" by david-255
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by david-255
[AMPL 524] Warehous location problem by ralfhewert
1
by ralfhewert
[AMPL 518] URGENT: Card versus Sum in counting by Steven Harrod
5
by Steven Harrod
[AMPL 522] Scheduling -- JobShop examples by Oodaye.Shukla@gmail....
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by Oodaye.Shukla@gmail....
[AMPL 516] how to verify a solution by pavel80
1
by Steven Harrod
[AMPL 515] Efficient Coding by Steven Harrod
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by Steven Harrod
[AMPL 514] Workshop on Optimisation,Stochastic Programming and Decision Making under Uncertainty by MickyStone
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by MickyStone
[AMPL 513] all by myatec@gmail.com
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by myatec@gmail.com
[AMPL 505] eliminating short-cycles in TSP by kiko-2
1
by Robert Fourer-2
[AMPL 511] ODBC interface connection specification by Bruce Moore-2
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by Bruce Moore-2
[AMPL 502] Duplicate Column x4644 and x245 makes problem unbounded by Casey-7
1
by Robert Fourer-2
[AMPL 507] AMPL BUG by vzavala81
1
by Robert Fourer-2
[AMPL 487] DIFFERENT OBJECITVE VALUES FROM CPLEX AND CBC FOR IDENTICAL AMPL INPUT by Steffen-6
4
by Robert Fourer-2
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