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 (6292)
Replies Last Post Views
[AMPL 2267] An error in FOR loop by royeh 2006
1
by pietro belotti
[AMPL 2264] An error in FOR loop by Saber Jalilzadeh-Gal...
0
by Saber Jalilzadeh-Gal...
[AMPL 2266] compute the time phased echelon demand recursivley in AMPL by Marc-139
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by Marc-139
[AMPL 2265] why is it not working ....... by opus
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by opus
[AMPL 2257] how to take only positive values by opus
2
by opus
[AMPL 2249] Linearized version of a bilinear model does not yield results by rami_asad_80
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by rami_asad_80
[AMPL 2251] expected ; . or number by Sunday Idowu
2
by Robert Fourer-2
[AMPL 2248] Seeking advice on Multicommodity Flow Problem (AMPL reports as infeasible) by Ryan-148
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by Robert Fourer-2
[AMPL 2247] expected ; . or number by sundayi
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by sundayi
[AMPL 2244] AMPL Formulation by afroza.sultana.kakon...
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by afroza.sultana.kakon...
[AMPL 2239] undefined variable n ERROR in "350/delay[j,n] by sundayi
2
by Sunday Idowu
[AMPL 2241] AMPL Formulation by afroza.sultana.kakon...
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by afroza.sultana.kakon...
[AMPL 2243] AMPL Formulation by afroza.sultana.kakon...
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by afroza.sultana.kakon...
[AMPL 2238] Call AMPL from Excel by alisonthomas
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by alisonthomas
[AMPL 2231] Constraints with sets of set by chiqui.p
1
by Robert Fourer-2
[AMPL 2235] solution time for different input data by enhany75
1
by Paul A. Rubin
[AMPL 2232] Breaking a repeat loop by enhany75
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by enhany75
[AMPL 2226] inventory balance equation by Marc-139
1
by Robert Fourer-2
[AMPL 2222] Importing data from MATLAB by amc.leon
5
by amc.leon
[AMPL 2221] Zero objective by Saber Jalilzadeh-Gal...
1
by Robert Fourer-2
[AMPL 2206] Constraints restricting using upper and lower bounds by Saber Jalilzadeh-Gal...
1
by Robert Fourer-2
[AMPL 2217] is it possible to use two different solvers in the same run file? by Marla-12
1
by Robert Fourer-2
[AMPL 2216] still infeasible solution by mah-5
1
by Pietro Belotti-2
[AMPL 2213] How to pass an incumbent value to speed up branch-and-bound? by Fabio Schoen
1
by Robert Fourer-2
[AMPL 2209] How to make two user-defined functions work in AMPL by greatzwz
1
by greatzwz
[AMPL 2208] iis to find the source of infeasibility by enhany75
1
by Robert Fourer-2
[AMPL 2207] Nonlinear mixed integer problem by Chris Conlon
0
by Chris Conlon
[AMPL 2204] Effect of AMPL presolve option on Memory fault by AMM-2
1
by Robert Fourer-2
[AMPL 2200] angle unit by mah-5
1
by Robert Fourer-2
Can I use logarithm in AMPL by wanjun
1
by Robert Fourer-2
[AMPL 2198] Definition variables by Saber Jalilzadeh-Gal...
1
by Robert Fourer-2
[AMPL 2195] Using existing CPLEX in new AMPL by hessam-4
1
by Robert Fourer-2
[AMPL 1873] Running Benders Decomposition on Cluster by ashutosh2009
3
by Robert Fourer-2
[AMPL 2190] Factorial by Tolga-5
1
by Pietro Belotti-2
[AMPL 2189] AMPL pipe function by AMM-2
0
by AMM-2
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