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 (5906)
Replies Last Post Views
[AMPL 1791] Range Report and Parametric Optimization with Neos Solvers by wacken07
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by wacken07
[AMPL 1782] database dump for NEOS server by cy-5
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by cy-5
[AMPL 1781] multi-optimal solutions by enhany75
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by Paul A. Rubin
All posibles subsets S of N of length h by jnunezf
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by Paul A. Rubin
[AMPL 1779] Increase My Space Songs Play by rocky-18
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by rocky-18
[AMPL 1776] Would like some clever ideas for sorting in AMPL by Ronald Menich
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by Robert Fourer-2
[AMPL 1775] product of an nxn matrix with nx1 vector by humaira fazal
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by Robert Fourer-2
[AMPL 1771] multiplier and adding constraints to the original model by Eric-105
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by Robert Fourer-2
[AMPL 1768] Possible to specify excel worksheet for data input? by Mush
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by Mush
[AMPL 1766] switching solvers by patrick-131
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by Robert Fourer-2
[AMPL 1757] Processing piecewise linear term problem in 64-bit AMPL by shawwash
3
by shawwash
[AMPL 1761] Condor utility and AMPL by shawwash
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by shawwash
[AMPL 1756] Scenario Tree Generation (Stochastic Programming) by Raquel Joao
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by Horand.Gassmann
[AMPL 1755] user maintenance by Kiwibank-2
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by Kiwibank-2
[AMPL 1754] user maintenance by Kiwibank-2
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by Kiwibank-2
[AMPL 1751] Memory issues and the .lazy directive by rgarcia-2
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by rgarcia-2
[AMPL 1744] multidimensional array by benabdellah3
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by Robert Fourer-2
[AMPL 1748] problems with multiple solve statements in AMPL by Hossein Haghighat
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by Robert Fourer-2
[AMPL 1745] unbounded problem error by Eric-105
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by Paul A. Rubin
[AMPL 1741] Local Minimum by Kanika-3
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by Hans Mittelmann
[AMPL 1742] Complex numbers in AMPL? by Sive.Christiansen
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by Sive.Christiansen
[AMPL 1737] AMPL Cannot compute sqrt by Steven Harrod
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by Kanika-3
[AMPL 1736] AMPL Cannot compute sqrt by Kanika-3
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by Kanika-3
[AMPL 1731] Constraints 'c1' and 'c2' are inconsistent by patrick-131
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by Robert Fourer-2
[AMPL 1743] Complex numbers in AMPL? by Sive.Christiansen
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by Sive.Christiansen
if-there-else- constraint not working by HeatherS
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by Paul A. Rubin
[AMPL 1729] no used indexs in restrictions by Eva Romero
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by Robert Fourer-2
[AMPL 1732] save the number of Branch and Bound nodes by gabriel.gnzlz2
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by gabriel.gnzlz2
[AMPL 1663] How to combine user-defined functions with AMPL? by ZhangWeizhong
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by ZhangWeizhong
[AMPL 1726] Iterating over objectives by mattias-11
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by mattias-11
[AMPL 1719] Why AMPL licenced version takes longer time to compute compared to the student one? by xalata
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by xalata
[AMPL 1723] set many directories for commands "model", "data", "include" and "commands" using environmental variable "ampl_include"; for "load" using parenthesized string expression by patiobarbecue
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by patiobarbecue
[AMPL 1699] Why AMPLCML-CPLEX is extremely slow by Tuong Nguyen
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by Tuong Nguyen
[AMPL 1721] .nl file write and constraint order by vzavala81
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by vzavala81
[AMPL 1718] recording execution time and iterations in AMPL by Hossein Haghighat
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by Hossein Haghighat
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