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 (5720)
Replies Last Post Views
[AMPL 16534] FIX versus PURGE by Ellen-22
1
by AMPL mailing list
[AMPL 8985] Solving nonlinear optimization problem with discrete variables by merihan briana
5
by pietro belotti
[AMPL 16532] Conditional constraints by LARA-3
3
by AMPL mailing list
[AMPL 16533] Conditional constraint in AMPL by LARA-3
0
by LARA-3
[AMPL 16532] Conditional constraint in AMPL by LARA-3
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by LARA-3
[AMPL 16492] ampl + two dimensional set by Lara
2
by AMPL mailing list
[AMPL 16526] Pareto front by Lara
1
by AMPL mailing list
[AMPL 16516] Dual solution by pujatewari82
2
by AMPL mailing list
[AMPL 16505] (f)flush in AMPL? by sels.peter
1
by AMPL mailing list
[AMPL 16290] modified libasl, now how to link ampl? by Alan Heirich
25
by AMPL mailing list
[AMPL 16478] Infeasible solution reported by COUENNE but feasible solution found by IPOPT by David-914
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by David-914
[AMPL 16515] Obtaining 'c' vector and 'A' constraint matrix from MPS file by Ripon Sarowar
1
by AMPL mailing list
[AMPL 16508] couenne option by Lara
2
by Lara
[AMPL 16505] Library STATLIB and function INVCUMNORMAL? by Valdir de Jesus
1
by AMPL mailing list
[AMPL 16504] first line in results by lara-2
1
by AMPL mailing list
[AMPL 16502] Please cancel my subscription to your group by Yaser Musa
1
by AMPL mailing list
[AMPL 16496] Infeasible constraints determined by presolve-Binary constraints by Salma Naamane
3
by Salma Naamane
[AMPL 16495] How to linearize a=min (x,y) in CPLEX by qytn001
1
by AMPL mailing list
[AMPL 16448] MILP by sahebeh.azar
5
by AMPL mailing list
[AMPL 16488] User Defined DLL File Documentation by Alex Nguyen
1
by AMPL mailing list
[AMPL 16419] Shadow price doesn’t work in AMPL version 20180123 using solver CPLEX 12.7.1 by Chia-Chun Tsai
4
by AMPL mailing list
[AMPL 16470] Coding constraints in AMPL which requires updating an initial value by Udoy Paul-2
3
by Udoy Paul-2
[AMPL 16466] Multi-Compartment VRP With Electric heterogenous fleet by reinoud fonken
2
by reinoud fonken
[AMPL 16469] Has anyone implemented Subtour Elimination by Miller-tucker-Zemlin(MTZ) by Vinh K
1
by AMPL mailing list
[AMPL 16467] Maxmin fairness problem by M H
1
by AMPL mailing list
[AMPL 16457] Dual variable of a constraint (python) by Juan Zhang
2
by AMPL mailing list
[AMPL 16455] Erro in specifying data in Ampl by Javiera Espinoza
2
by AMPL mailing list
[AMPL 16453] Linearity of mod and div operators by Ronicass
1
by AMPL mailing list
[AMPL 16462] Fwd: Us congress hearing of maan alsaan Money laundry قضية الكونغجرس لغسيل الأموال للمليادير معن الصانع by sami a
0
by sami a
[AMPL 16458] error : Constraint _scon[1] is not convex quadratic since it is an equality constraint. by marios gavaletakis
1
by AMPL mailing list
[AMPL 16446] Availability of tuple (data structure) in AMPL by Udoy Paul-2
4
by AMPL mailing list
[AMPL 16428] Need help to code the following equation by Udoy Paul-2
2
by Udoy Paul-2
[AMPL 9765] Vehicle Routing Problem - How to Account for Time Windows? by kevin.roman1992
10
by AMPL mailing list
[AMPL 16440] How to write AMPL for this constraint? by Vinh K
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by Vinh K
[AMPL 11391] AMPL IDE - Change Directory Problem by mahraz amini
14
by AMPL mailing list
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