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 (6293)
Replies Last Post Views
[AMPL 2702] How to use Matlab to read .nl file? by SORA-7
1
by zhyi100@gmail.com
[AMPL 2694] Derivative-free NLP solvers by Guilherme P. de Frei...
8
by Guilherme P. de Frei...
[AMPL 2707] Question on subsets of ordered sets by Alex Sadovsky
2
by Robert Fourer-2
solution precision by bydesign
3
by Robert Fourer-2
[AMPL 2687] Convert string by ziming guan
1
by Robert Fourer-2
[AMPL 2699] Help with binary var by Thomas Granz
1
by Robert Fourer-2
[AMPL 2695] Problems with workfiledir CPLEX option by plozmar
1
by Paul A. Rubin
[AMPL 2689] Defining initial guess for Donlp2 Solver by Gwen-11
4
by Ali Baharev
[AMPL 2641] OBDC - writing files to EXCEL 2007 by Graham-59
3
by ziming guan
[AMPL 2683] using ODBC by ziming guan
1
by Robert Fourer-2
[AMPL 2682] Copy file in AMPL by ziming guan
1
by Robert Fourer-2
[AMPL 2662] multiple objective by hessam-4
3
by Dr. P K Modi
[AMPL 2679] Optimizing based on solution of another optimization problem by msaqib
1
by Robert Fourer-2
[AMPL 2665] optimal variable restriction by polis
1
by Robert Fourer-2
[AMPL 2657] AMPL constraint formulation; by Davide De Pieri
1
by Robert Fourer-2
[AMPL 2656] Using solution of one problem as an input data of other problem by Ruben Proano
1
by Robert Fourer-2
[AMPL 2648] Providing analytical derivatives. by joon-5
3
by joon-5
[AMPL 2651] memoryemphasis and error by plozmar
1
by Robert Fourer-2
[AMPL 2646] Checking if a Variable Has Been Fixed by Luis de la Torre-2
1
by Robert Fourer-2
[AMPL 2647] output AMPL file >> input data AMPL by plozmar
1
by Robert Fourer-2
[AMPL 2635] Evaluation error by MAT-46
2
by MAT-46
Unbounded or badly scaled problem by msaqib
3
by msaqib
[AMPL 2634] varying input file name / batch mode by Michael Kupfer
1
by Robert Fourer-2
[AMPL 2658] AMPL constraint formulation by polis
0
by polis
displaying a particular row of an array by Yasin053
3
by Paul A. Rubin
[AMPL 2631] Arbitrary Cartesian Products by Guilherme P. de Frei...
7
by Guilherme P. de Frei...
[AMPL 2636] ceiling function by zebra-2
2
by Paul A. Rubin
[AMPL 2627] obtaining minimum between two variables by plozmar
1
by Paul A. Rubin
[AMPL 2622] Help with a constraint! by plozmar
3
by Paul A. Rubin
[AMPL 2536] Condicions in AMPL function by plozmar
4
by plozmar
[AMPL 2624] Defining a variable domain by Amadeus-5
1
by Paul A. Rubin
[AMPL 2612] change variable bound by Ali Baharev
5
by Robert Fourer-2
[AMPL 2616] Mesuring total time by royeh 2006
1
by Marla-12
defining a parameter by referring to the components of a set by Yasin053
1
by Paul A. Rubin
[AMPL 2607] Two vars in one constraint by lukyluke
2
by Thomas Granz
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