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 (5809)
Replies Last Post Views
[AMPL 1326] Proposal by Morrow Ik
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by Morrow Ik
[AMPL 1322] Binary variables first in MPS file? by Ayman.H.Ragab
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by Hans Mittelmann
Reading data from .txt-files with the wrong form by Phil.Kleff
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by Phil.Kleff
[AMPL 1315] how to debug by ankit-3
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by Puschmann, Heinrich ...
[AMPL 1319] syntax concept by ankit-3
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by ankit-3
[AMPL 1317] concept of variable declaration by ankit-3
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by ankit-3
[AMPL 1303] Re: variable output file name by Adela Pag├Ęs Bernaus
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by Robert Fourer-2
[AMPL 1311] Re: Windows by Horst Richardson
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by Horst Richardson
[AMPL 1302] variable output file name by google-21
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by google-21
[AMPL 1304] solving mutiobjective optimization by raja-14
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by raja-14
[AMPL 1299] problem about "printf" by Luna-5
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by Robert Fourer-2
[AMPL 1294] What could possibly be wrong? by adebayoalabi@hotmail...
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by Robert Fourer-2
[AMPL 1296] There is no limitation on nesting of loops. by Loree Chavarie
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by Loree Chavarie
[AMPL 1295] What could possibly be wrong? by adebayoalabi@hotmail...
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by adebayoalabi@hotmail...
[AMPL 1293] Discussion on i-the-problem-possible-to-solve-what-solver-is-needed by Yun Lu
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by Yun Lu
[AMPL 1277] Display solutions when using nl files by Kanika-3
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by Kanika-3
[AMPL 1292] Enumerates all the surfaces attached to a given surface. by alsayed Ortner
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by alsayed Ortner
[AMPL 1104] $presolve_eps message by Bruce Moore-2
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by Robert Fourer-2
[AMPL 1288] SNOPT displaying output by Kanika-3
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by Kanika-3
[AMPL 1282] Conditional constraints by xalata
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by Puschmann, Heinrich ...
[AMPL 1278] making a problem current within a loop by Puschmann, Heinrich ...
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by Puschmann, Heinrich ...
[AMPL 1263] Some sort of #DEFINE or macro for AMPL? by Joseph-56
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by Joseph-56
Assigning integrality by Phil.Kleff
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by Phil.Kleff
[AMPL 1258] Re: How to generate .lp file? by Willian Rolando Algu...
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by arm-2
[AMPL 1272] For example, you can create a content type for a customer presentation document with a unique set of columns, an event handler, and its own document template. by Norris Montagu-2
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by Norris Montagu-2
[AMPL 1266] named problem management by Puschmann, Heinrich ...
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by heinrich-5
[AMPL 1270] It doesn't bother trying to solve this incredibly difficult problem. by mhmod laonardi
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by mhmod laonardi
[AMPL 1262] File format conversion by ankit-3
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by Robert Fourer-2
[AMPL 1261] definition of named environs by Puschmann, Heinrich ...
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by Puschmann, Heinrich ...
[AMPL 1221] conditional constraints by ankit-3
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by Robert Fourer-2
How to generate .lp file? by arm
6
by Hans Mittelmann
[AMPL 1246] Can't find file "example_data.txt" error by turcanuzergy
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by turcanuzergy
[AMPL 1247] Help me, No problem exists. by Martin Grados Marqui...
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by Robert Fourer-2
[AMPL 1244] infeasible error by ankit-3
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by Hans Mittelmann
[AMPL 1230] how can I use "halt_on_ampl_error yes" by huangr76
9
by A. Ismael F. Vaz
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