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 (5430)
Replies Last Post Views
[AMPL 15303] Function to obtain rows of optimal basis in AMPL by TFaiz
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by Robert Fourer-2
[AMPL 15319] CRIMINALISSIMA BITINCUBATOR DEI 2 NOTI PEDOFILI PAOLO BARRAI E CLAUDIO LEVRINI (REGISTRATA QUI, IN MEGA LAVA SOLDI LERCI: SVIZZERA https://www.moneyhouse.ch/en/company/bitincubator-ventures-sa-12554072241 ) RICICLA SOLDI ASSASSINI DI COSA NOSTRA..... by LUIGI BISIGNANI - MA...
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by LUIGI BISIGNANI - MA...
[AMPL 15312] AMPL: Syntax Error Message in Summation by 12S32 TEO AI HUI DEL...
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by ptiwari
[AMPL 15311] Maximum Covering Location Problem with set problem: there's a set conditioned with distance and radio coverage. by Alberto G
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by ptiwari
[AMPL 15309] set execution time for model by Eric E Sättar
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by ptiwari
[AMPL 14511] AMPL IDE does not work with cplex by Kaien Nicola
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by monuy594
[AMPL 15296] Nonlinear mixed integer programming constraint violation by t.t.teo
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by t.t.teo
[AMPL 15302] User defined Gomory Cuts in AMPL by TFaiz
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by Robert Fourer-2
[AMPL 15193] If-Else conditions changing original value being compared by Ishita
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by Robert Fourer-2
[AMPL 15296] Neighbor set by Rick
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by Robert Fourer-2
[AMPL 15296] Neighbor set by Rick
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by Rick
[AMPL 15279] CPLEX 12.7.1.0: integer infeasible THE VEHICLE ROUTING PROBLEM WITH TIME WINDOWS by alexandrepsv10
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by alexandrepsv10
[AMPL 9765] Vehicle Routing Problem - How to Account for Time Windows? by kevin.roman1992
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by nourhanghanem93
[AMPL 15279] Analyzing Baron result by SG
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by SG
[AMPL 15274] mistake in a table by Fernando Dumont
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by ptiwari
[AMPL 15275] error needs 2 subscripts not 1 by yudhi2294
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by ptiwari
[AMPL 15269] Modeling Linear Problem of Production by Cristian Vera
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by ptiwari
[AMPL 15123] Medeling non linear problem by Cristian Vera
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by Robert Fourer-2
[AMPL 15222] Sensitivity Analysis by Ratna S
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by Robert Fourer-2
[AMPL 15275] error-- needs 2 subcripts not 1 ( need help) have also uploaded the model by yudhi2294
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by yudhi2294
[AMPL 15275] Where is the error? Vehicle Routing Problem with Time Window (VRPTW) CPLEX 12.7.1.0: integer infeasible. 0 MIP simplex iterations 0 branch-and-bound nodes No basis. by alexandrepsv10
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by alexandrepsv10
[AMPL 15220] Bug in computed variable by picojeff
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by picojeff
[AMPL 15261] Helps BARON to find the feasible solution by SG
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by SG
[AMPL 15262] AMPL set Option using MATLAB API by Roberto Germanà
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by Roberto Germanà
[AMPL 15263] Set option using MATLAB API by Roberto Germanà
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by Roberto Germanà
[AMPL 15261] help BARON to find feasible solution by SG
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by SG
[AMPL 15261] CRIMINALE VERME CLAUDIO CERASA (TWITTER..IL FOGLIO..BUON X PULIRSI IL CULO SE FINISCE LA CARTA IGIENICA..MA OCHO..E' INFETTATO DI NAZISMO-P2-MAFIA). MALAVITOSO DI PALERMO! NAZISTALKER! AFFILIATO A COSA NOSTRA: FAMIGLIA CIMINNA. MANDAMENTO DI CACCAMO! by VERMECRIMINALISSIMO ...
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by VERMECRIMINALISSIMO ...
[AMPL 15250] Using a binary var by SG
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by SG
[AMPL 15182] error reading table with table handler tableproxy: could not connect to Modello.dsn by ARIANNA TESTA
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by Robert Fourer-2
[AMPL 15235] Random numbers considering different probabilities by fernandafreitasufmg
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by fernandafreitasufmg
[AMPL 15241] BARON solver converging criteria by SG
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by SG
[AMPL 15240] convex o.f. generates "contains a nonlinear objective" error by Alba Victoria
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by Robert Fourer-2
[AMPL 15229] display matrix coefficients and a particular coef by Roberto Rosetti
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by ptiwari
[AMPL 15030] AMPL/Gurobi: suboptimal solution by Fabian Wilschewski
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by Robert Fourer-2
[AMPL 15235] Fwd: AMPL Contact Form Message by salawu
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by salawu
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