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 (6193)
Replies Last Post Views
Syntax formulation for an excluded term in a set by bcc
1
by Robert Fourer-2
[AMPL 2107] matrix multiplication by mah-5
1
by Robert Fourer-2
[AMPL 2104] how to use AMPL to solve the following problem. by a4youngie
0
by a4youngie
Multiple Summation Notation by bcc
1
by Robert Fourer-2
[AMPL 2101] Displaying set of relaxed constraint with Cplex option feasopt 2 and feasoptobj 3 by shawwash
0
by shawwash
[AMPL 2069] infeasible problem by Ali Baharev
2
by Ali Baharev
[AMPL 2093] How to invoke NPSOL with AMPL? by greatzwz
4
by Hans Mittelmann
[AMPL 2097] Building cplexamp (AMPL/CPLEX bridge) from source by Raj_M
0
by Raj_M
[AMPL 2088] Sum of certain elements of a set by louispat.dansereau
3
by louispat.dansereau
[AMPL 2089] objective of the master problem consists of objectives of subproblems by joachimstadel
1
by Eli Olinick
[AMPL 2084] Using feasible solutions from heuristic to accerlate the computation of MILP? by Wenda Ni
1
by Paul A. Rubin
[AMPL 2085] Question : how to describe "K is not equal to L" in ampl mod file? by jason-254
1
by Paul A. Rubin
[AMPL 2081] Help Needed by Ifedi Odinakaeze
2
by Ifedi Odinakaeze
[AMPL 2078] Can any one help me out please. by Ifedi Odinakaeze
2
by Ali Baharev
[AMPL 2074] Problem with generating constraints subjected to a condition by Ashu-7
2
by Ashu-7
[AMPL 2059] Indicator constraints by davewoodrow
2
by davewoodrow
Selecting Variables for Aircraft Under-Utilization by AhmedAH
1
by Paul A. Rubin
[AMPL 2068] Is it possible to let AMPL write ASCII file when I type solve? by xu.mathena
1
by Robert Fourer-2
[AMPL 2062] Multi-objective modeling by uriarte.caroline
2
by uriarte.caroline
[AMPL 2065] Trouble writing to an Excel file by barry.e.king
1
by Robert Fourer-2
[AMPL 2060] error? by amir_a3050@yahoo.com
1
by Robert Fourer-2
[AMPL 2058] Conversion of special AMPL Piecewise-linear to .MPS problem by JLAndrade
0
by JLAndrade
[AMPL 2057] Special session on Mathematical Programming at SETP-09 by JohnEdward
0
by JohnEdward
[AMPL 2056] stochastic recourse two-stage multiperiod scenario tree by Malak-2
0
by Malak-2
[AMPL 2053] How to do the below by Ifedi Odinakaeze
2
by Ifedi Odinakaeze
[AMPL 2049] How to apply special constraints on variables in AMPL by Wenda Ni
3
by Yu Liu-3
[AMPL 1995] Nonlinear Programming with Discontinuous Derivatives (NPDD) by ynevskaya
4
by dmitrey.kroshko
[AMPL 2039] Results in NEOS vs. Laptop by Pamela-23
3
by Hans Mittelmann
[AMPL 2043] A scheduling model and AMPL by 李学军
0
by 李学军
Connecting AMPL to MySQL by osulla
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by osulla
[AMPL 2034] indexed sets by patrick-131
1
by Robert Fourer-2
[AMPL 2033] Parameter representation by Ifedi Odinakaeze
1
by Robert Fourer-2
[AMPL 2028] nonlinear mixed integer model by enhany75
3
by Hans Mittelmann
[AMPL 2023] _solve_time and Neos by Malak-2
1
by Robert Fourer-2
[AMPL 2027] to check feasibility of the constraints / to get initial solution by pianoman
0
by pianoman
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