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 (6349)
Replies Last Post Views
[AMPL 18407] problem in the transportation cost by Juan Diego PLAZA CAN...
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by Juan Diego PLAZA CAN...
[AMPL 18405] syntax error - Ampl by mihir.mehta2017
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by mihir.mehta2017
[AMPL 18393] What's wrong in this code? by electrolion0
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by AMPL mailing list
[AMPL 18394] Help using AMPL and solver by Oscar Guzman
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by AMPL mailing list
[AMPL 18394] Binary Variable referring to Nodes or Arcs by What You See Product...
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by AMPL mailing list
[AMPL 18383] How to refer to certain rows in a column and order sets by What You See Product...
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by AMPL mailing list
[AMPL 18394] AMPL Question by Roberto J Salazar Re...
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by Roberto J Salazar Re...
[AMPL 18383] How to order data from data file and refer to only certain ARCs in Model by What You See Product...
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by AMPL mailing list
[AMPL 18383] Solver problem by Mauro Steban GARCIA ...
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by AMPL mailing list
[AMPL 18381] MINLP Solvers cant solve my problem by Murilo Souza
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by Murilo Souza
[AMPL 18381] Solving the same problem twice and get infeasible in the second time by pmffdias
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by pietro belotti
Re: [AMPL 18379] PROBLEM by AMPL mailing list
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by AMPL mailing list
[AMPL 18371] Sensitivity Analysis with infeasibility test by Edwin Okoronkwo
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by AMPL mailing list
[AMPL 18371] Improving Speed by Nick Tsivanidis
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by AMPL mailing list
[AMPL 18358] Transportation Problem by chinnuprashanth14
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by AMPL mailing list
[AMPL 18365] activate the couenne options on pyomo by paravarz
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by AMPL mailing list
[AMPL 18353] Subsolver for MINLP by Murilo Souza
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by AMPL mailing list
[AMPL 18358] Online course by santi ayabaca
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by AMPL mailing list
[AMPL 13096] Fractional root node solution by Akshay-11
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by AMPL mailing list
[AMPL 18267] Syntax Error by Murilo Souza
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by Murilo Souza
[AMPL 18349] How to make summation with condition by Anas
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by AMPL mailing list
[AMPL 18342] Matrix of zeros by Priscila Rossoni
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by AMPL mailing list
[AMPL 18339] MIP gap in Gurobi by Timo S.
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by AMPL mailing list
[AMPL 18324] Iterations in Run by davidmat025
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by AMPL mailing list
[AMPL 18334] Variable as index by Asereth D
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by AMPL mailing list
[AMPL 18323] Strange dropping by Peter Greistorfer
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by Peter Greistorfer
[AMPL 18285] How to efficiently shrink a problem when partially fixed? by Peter Greistorfer
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by Peter Greistorfer
[AMPL 18337] Importing data to AMPL (Access/Excel). by ignacio94marin
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by ignacio94marin
[AMPL 18322] AMPL parallelize loop by Alba Victoria
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by AMPL mailing list
[AMPL 18318] Another way to deal with logic constraint ? by Zoro Roronoa
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by AMPL mailing list
[AMPL 18311] .DAT file is crashing and cannot load lines of code by mayukh majumdar
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by AMPL mailing list
[AMPL 18302] Solving a problem multiple times on different block of data by Md Saiful Islam
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by Md Saiful Islam
[AMPL 18245] MST problem by Zoro Roronoa
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by Zoro Roronoa
[AMPL 18235] "invalid subscripts discarded" for TSP by bananpannkaka2018
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by AMPL mailing list
[AMPL 18252] Force integrality on random variable by ORmodel
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by AMPL mailing list
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