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 (6989)
Replies Last Post Views
[AMPL 21300] Modelling Constraint depending on parameter values by Degonas
0
by Degonas
[AMPL 21298] Unkown Error by mihajlo
1
by AMPL mailing list
[AMPL 21289] Constraint - Inconsistency by mihajlo
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by mihajlo
[AMPL 21296] Extracting a subset and vector mutliplication by Ognjen Sofijanic
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by Ognjen Sofijanic
[AMPL 21291] Data in loop overwritten by Vorname Nachname
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by Vorname Nachname
[AMPL 20861] Knitro solver by Federico Allo
3
by AMPL mailing list
[AMPL 21283] QP Hessian is not positive semi-definite. by haider20112001
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by AMPL mailing list
[AMPL 21283] default declaration for column or row data by MIkhail
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by AMPL mailing list
[AMPL 21279] Problem in the inital use of AMPL through matlab R2016b on a laptop with win10-64bits OS by Allan
1
by AMPL mailing list
[AMPL 21278] Problem with induced sets by Eduardo Cadavid
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by AMPL mailing list
[AMPL 21279] Does anyone have a demo or any version of ampl binaries (linux) that include cplex 12.6.1.0 by Kittisak Phormraksa
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by Kittisak Phormraksa
[AMPL 21256] Problem with variable in such-that part of set specification by ghjklmn
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by AMPL mailing list
[AMPL 21254] Problem defining a parameter inside of a loop by unnoriginal name
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by unnoriginal name
[AMPL 21199] solving a nonlinear binary integer program using BARON by Yasin
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by AMPL mailing list
[AMPL 21122] How to fix some presolve warnings by tbhuiyan
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by AMPL mailing list
[AMPL 21258] Adding element to set that has already been defined by jpattier23
1
by AMPL mailing list
[AMPL 21250] Missing buttons - AMPLide - CurrentDirectory empty! by Peter Greistorfer-2
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by AMPL mailing list
[AMPL 21163] by Vivi
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by Vivi
[AMPL 21226] Iterating over one model file with different parameter values, and break when conditions are met by ghjklmn
5
by AMPL mailing list
[AMPL 19010] AMPLide - CurrentDirectory empty! by Peter Greistorfer
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by Peter Greistorfer
[AMPL 21240] some problems by Fantasymaker
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by AMPL mailing list
[AMPL 21222] help with module by viansava24
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by viansava24
[AMPL 21212] Out of topic questions by Corazon
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by Corazon
[AMPL 21105] Optimal Sizing2 by Matts Davids
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by AMPL mailing list
[AMPL 7156] Error executing "solve" command: can't open /var/.../xyz.sol by Aruna Prem
8
by AMPL mailing list
[AMPL 21193] Silly question by F.-Javier Heredia
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by FJHeredia
[AMPL 10462] Using CPLEX and ConOpt as default solvers in BARON by Pradyumn Shukla
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by Irene Hsiao-2
[AMPL 21034] skip solver message by esteban nicolas seba...
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by esteban nicolas seba...
[AMPL 21189] Brian Kernighan interviewed by Lex Fridman on origins & principles of AMPL by Robert Fourer-4
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by Robert Fourer-4
[AMPL 21188] LINDO Global 12.0 for AMPL now available from us by Robert Fourer-4
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by Robert Fourer-4
[AMPL 21167] Filling the an indexed paramter with the same value by Dorid Mustafa
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by Dorid Mustafa
[AMPL 21174] for loop by Mohannad Alhazmi
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by Mohannad Alhazmi
[AMPL 21181] Selective display or print of a set string member by htaha6069
2
by MIkhail
[AMPL 21176] Syntax error in AMPL by Po Panda
5
by AMPL mailing list
[AMPL 21042] reading that from excel table by Vivi
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by AMPL mailing list
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