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 14912] Integrating AMPL API with MATLAB by mohit.lamba
1
by Robert Fourer-2
[AMPL 14912] Error processing constraint by taylorparrish612
1
by Robert Fourer-2
[AMPL 14911] FURTHER QUESTIONS // AMPL NEOS by Leidy Johana Leyton ...
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by Robert Fourer-2
[AMPL 14897] Problem with ampl_lic_service / AMPL API for MATLAB by Martin Glanzer
2
by Martin Glanzer
[AMPL 14911] presolve: constraint SLC['s3'] cannot hold: by RS
1
by Robert Fourer-2
[AMPL 11948] Can't find file by Aristide GIULIANO
7
by bnmoustafa
RE: [AMPL 14893] Nonlinear constraint parsing from .nl file by Robert Fourer-2
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by Alan Delgado de Oliv...
[AMPL 14907] Nested loop with changing parameters values - error by 18312
2
by 18312
[AMPL 14899] How to set multithreads parameters in AMPL for Gurobi? by david
1
by Robert Fourer-2
[AMPL 14902] NEOS command syntax error - CPLEX by Fei Xie
1
by Fei Xie
[AMPL 14899] Lagrangian relaxation with subgradient method by Isadora Hochfärber
1
by Robert Fourer-2
[AMPL 14895] help needed by RS
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by Robert Fourer-2
[AMPL 14891] AMPL shuts itself during algorithm by Tobi
2
by Robert Fourer-2
[AMPL 14886] MINLP returns infeasible solution by Xuezhou Zhang
2
by Robert Fourer-2
[AMPL 14883] parameters depending from variables. by Andrea Di Taranto
2
by Andrea Di Taranto
[AMPL 14885] VRP with latest arrival objective by Erin Mullin
1
by Robert Fourer-2
[AMPL 14886] MINLP returns infeasible solution. by Xuezhou Zhang
0
by Xuezhou Zhang
[AMPL 14857] Problem with AMPL IDE with new Mac OS "High Sierra" by simon_onair
5
by simon_onair
[AMPL 14879] Fw: RE: How to declare a binary variable by for-loop variable in AMPL? by david
1
by Robert Fourer-2
[AMPL 14870] ampl/gurobi: can't open /tmp/at16918.sol by Hend Ben Saad
2
by Hend Ben Saad
[AMPL 14858] Nonlinear constraint parsing from .nl file by Alan Delgado de Oliv...
2
by Alan Delgado de Oliv...
[AMPL 14858] Complementarity problem's solution is invalid by s.darougheh
1
by Robert Fourer-2
[AMPL 14858] question by santi ayabaca
1
by Robert Fourer-2
[AMPL 14865] Slope at break- points of piece- wise linear expressions by chrisnytun10
1
by Robert Fourer-2
[AMPL 14830] Solver slow when invoked from bash script by Hend Ben Saad
2
by Hend Ben Saad
[AMPL 14866] Crash trying to run CBC by Robert Fourer-2
1
by AMPL Support
[AMPL 14853] "Read" command error: expected a number, symbol or string by fernandafreitasufmg
1
by Robert Fourer-2
[AMPL 14848] Concise Mathprog statements for a conjunctive logical constraint of N variables? by antenucci.d
2
by Robert Fourer-2
[AMPL 14848] Linear programming model by annasolberg6
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by AMPL Support
RE: [AMPL 14861] AMPL Baron_ malfunction detected in eptsol by Robert Fourer-2
0
by Robert Fourer-2
[AMPL 14810] Error: piecewise-linear term has 3 slopes, 1 breakpoints by Catherine Xie
2
by Catherine Xie
[AMPL 7852] Piecewise-linear term error by Daji-2
3
by chrisnytun10
[AMPL 14842] Unable to run "openShop" files by Jamdar, Aditya
1
by Robert Fourer-2
[AMPL 14848] Defining variables by camilla.t.johansen
1
by antenucci.d
[AMPL 14845] PyCharm and amplpy do not recognize license by s.darougheh
2
by Robert Fourer-2
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