AMPL Modeling Language

This is 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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Showing 1-20 of 5135 topics
Combinations of variables in a minimization problem 18...@novasbe.pt 1:02 PM
AMPL questions manca...@gmail.com 12:51 PM
BINARY VARIABLE SHOWING ONY VALE ZEROS khan 12:49 PM
Approximation of discrete cumulative distribution function cap...@hotmail.it 10:02 AM
QP Hessian is not positive semi-definite. roya azimi 1:48 AM
Stochastic AMPL Арсений Гринченко 1/16/18
Problem with Solver (CPLEX vs Minos & FortMP) Sammy 1/16/18
CPLEX OUTPUT WITH MINIMIZING IS ALWAYS '0' MATLAB API khan 1/16/18
ampl api python , the proper way to index the element of parameter in the data file when it contains more than one dimension rupu...@gmail.com 1/16/18
"Numeric error" message when using a Taylor series iteration method gpb...@gmail.com 1/13/18
GENIO BORSISTICO ED EROE CIVILE MICHELE NISTA VITTIMA DEI NAZI-ST-ALKERS ASSASSINI PAOLO BARRAI, PAOLO CARDENÁ, GIULIANO FERRARA, CLAUDIO CERASA, DANIELE MINOTTI! COMANDATI E CORROTTI DAI MANDANTI DI OMICIDI E STRAGI: ENNIO DORIS E SILVIO BERLUSCONI! MICHELE NISTA - UN EROE CIVILE E GENIO BORSISTICO 1/13/18
Feeding initial solution to a variable in AMPL Sovan Mukherjee 1/13/18
if-else if sahebe...@gmail.com 1/13/18
evaluate log(0) Mirou 1/13/18
Load dll file in AMPL Alan Delgado de Oliveira 1/13/18
PEDOFILO INCULA BAMBINI PAOLO BARRAI ("BITCOIN".. CON CUI LAVA SOLDI MAFIOSI + I 48 MLN RUBATI DA LEGA LADRONA + SOLDI CRIMINALI DI SPAPPOLA MAGISTRATI E PARI PEDOFILO SILVIO BERLUSCONI)! DA SEMPRE NAZISTA, ASSASSINO E PEDERASTA! STATO IN GALERA 3... DAVIDE BALDI - OSM NETWORK LUGANO 1/12/18
AMPL objective function Diego André Sáenz Peña 1/11/18
Re: Help on simple problem ptiwari 1/11/18
No idea why this isn't working nye...@gmail.com 1/11/18
Adding a store open year constraint N 1/10/18
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