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 16302] Get knitro solve_result_num value in amplpy by fatemeh.hosseini89
1
by AMPL mailing list
[AMPL 16306] knitro termination code 135 by Alan Heirich
0
by Alan Heirich
[AMPL 16273] Syntax error + ORIG is not a set by fatemeh.hosseini89
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by fatemeh.hosseini89
[AMPL 16197] if command - problem!! by şeyma doğan
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by şeyma doğan
[AMPL 16278] Dynamic sets, dynamic parameters, sparse matrices. by Wilmer Henao
2
by Wilmer Henao
[AMPL 16280] need to create an extended range tanh function for use in constraints by Alan Heirich
2
by Alan Heirich
[AMPL 16197] order of periods by brigittebartocha
3
by AMPL mailing list
[AMPL 16220] AMPL drops cuts - why? by Peter Greistorfer
2
by Peter Greistorfer
[AMPL 16183] AMPL CPLEX Big M Constraint and Indicator Constraints by Erin Mullin-2
3
by AMPL mailing list
[AMPL 16263] Urgent: Having difficulty with logical expression in a constraint by Yash Chauhan
3
by Yash Chauhan
[AMPL 16243] what is wrong with my model ? by صالح الفوزان
4
by AMPL mailing list
[AMPL 9604] MINOS: Show Lagrange Multipliers by ijmadrid
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by Michael Saunders-3
[AMPL 16237] warm start in AMPL API by mahraz amini
6
by AMPL mailing list
[AMPL 16259] What's mean "no basis" in this problem? by Cristian Vera
1
by AMPL mailing list
[AMPL 16146] optimal solution is found while the constraint is not satisfied by mahraz amini
2
by AMPL mailing list
[AMPL 16237] expanding a constraint by hosein.haghighat
1
by AMPL mailing list
[AMPL 16220] IPOPT finds the optimal solution on the second solve! by mahraz amini
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by mahraz amini
[AMPL 16190] Presolve error handling by Peter Greistorfer
5
by Peter Greistorfer
[AMPL 16212] Knitro in Parallel by andreas.buchheit
3
by AMPL mailing list
[AMPL 16227] Maximum Flow of a graph by Khalil Mebarkia
1
by AMPL mailing list
[AMPL 16197] define problem in a loop by Luca Mencarelli
2
by AMPL mailing list
[AMPL 16208] Problem with table declaration (from ASCII text table) of indexed subset by Mathilde Bourque
2
by Mathilde Bourque
[AMPL 16193] cutting stock problem --only three types cut by şeyma doğan
1
by AMPL mailing list
[AMPL 16212] keep showing error by huijia1231
1
by AMPL mailing list
[AMPL 16208] AMPL Linux error: Cannot find "cplex" by Andrea Bustillos
1
by AMPL mailing list
[AMPL 16197] Running AMPL using Python script by Khalil Mebarkia
2
by Khalil Mebarkia
[AMPL 16197] Format by sahebeh.azar
1
by AMPL mailing list
[AMPL 16197] Problems in transform sentences into AMPL by Khalil Mebarkia
1
by AMPL mailing list
[AMPL 16193] include data file with extra values by pujatewari82
1
by AMPL mailing list
[AMPL 16190] Trouble in transform these conditional sentences into AMPL by zxmengiyama
1
by AMPL mailing list
[AMPL 16185] AMPL error messages: "variable in upper bound of range set" by Wafa Lakdhar
1
by AMPL mailing list
[AMPL 16183] Outputting variable type by hurbutun
1
by AMPL mailing list
[AMPL 16187] Cplex as LP solver in Knitro by andreas.buchheit
0
by andreas.buchheit
[AMPL 16172] Matlab API Handling DataFrame. by Thomas Perrin
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by Thomas Perrin
[AMPL 16155] error : exit code 18446744072635810101 by hosein.haghighat
2
by hosein.haghighat
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