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 (6193)
Replies Last Post Views
[AMPL 2467] conditions in AMPL-language by plozmar
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by plozmar
[AMPL 2463] Gamma function by vasilis.hamosfakidis
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by vasilis.hamosfakidis
[AMPL 2459] npsol options in AMPL by greatzwz
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by greatzwz
[AMPL 2458] newbie question on using a cost function which is the real part of a complex number by srinivas-25
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by srinivas-25
error in running two models in a run file by Yasin053
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by Robert Fourer-2
[AMPL 2453] Error reading Two dimensional Array from Excel by vidit
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by Robert Fourer-2
solving an additional model in the run file by Yasin053
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by Robert Fourer-2
[AMPL 2449] Why does the "display <constraint_name>.dual" yield different results in the solvers CPLEX and cbc? by Carl He
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by Robert Fourer-2
initializing the values of an array by Yasin053
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by Robert Fourer-2
finding the maximum value of several parameters by Yasin053
1
by Paul A. Rubin
[AMPL 2440] help in syntax error by Lingyun Xie
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by Robert Fourer-2
[AMPL 2439] problems with assigning a parameter with the last found optimal objective function value by Kaan-2
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by Robert Fourer-2
[AMPL 2416] Error using LET command by vidit
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by Robert Fourer-2
[AMPL 2429] Computation error. by Mirco Soderi
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by Robert Fourer-2
[AMPL 2430] How can I see the whole iteration process? by zhyi100@gmail.com
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by Robert Fourer-2
[AMPL 2431] Decomposition and linearization solutions by enhany75
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by enhany75
[AMPL 2426] Tennis Court , Picking Ball Problem by Master12
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by Master12
[AMPL 2414] [ AMPL] Handling dates and days by Tavs
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by Robert Fourer-2
creating a set using a collection of sets by Yasin053
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by Yasin053
[AMPL 2411] problem summing over three sets by k.kaybee@googlemail....
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by Robert Fourer-2
[AMPL 2410] Explicit pivoting by stefano.coniglio
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by Robert Fourer-2
problem in running AMPL by Yasin053
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by Robert Fourer-2
[AMPL 2409] Can i create a Matrix and Use in the Model? by vidit
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by vidit
[AMPL 2400] How can I get information from .mod files by zhyi100@gmail.com
2
by zhyi100@gmail.com
[AMPL 2392] Syntex error in "Let" by Saber Jalilzadeh-Gal...
5
by Saber Jalilzadeh-Gal...
array entries in the data file by Yasin053
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by Saber Jalilzadeh-Gal...
[AMPL 2397] Running time by Saber Jalilzadeh-Gal...
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by Saber Jalilzadeh-Gal...
adding conditions while defining a set by Yasin053
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by Saber Jalilzadeh-Gal...
[AMPL 2391] command-line history for AMPL (and other programs) by David M. Gay-2
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by David M. Gay-2
ampl problem by imostfu
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by Malak-2
[AMPL 2372] looking for metaheuristic solvers for AMPL by cy-5
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by cy-5
[AMPL 2386] Cannot write a table to Excel 2007 by barry.e.king
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by barry.e.king
[AMPL 2374] ampl/cplex error - integer infeasible by CW-13
2
by CW-13
running time for AMPL+CPLEX by wanjun
1
by Robert Fourer-2
[AMPL 2382] can index used as parameter by patrick.lijian
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by patrick.lijian
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