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 (6458)
Replies Last Post Views
[AMPL 19090] Doubte in the display of answers by Siwaporn suksee
8
by Siwaporn suksee
[AMPL 19130] Besoin d'aide by moimeme diaby
1
by AMPL mailing list
[AMPL 19121] Prevent nodes in the network model by LYRICS
1
by AMPL mailing list
[AMPL 19117] Changing variable domain for some elements in set by VĂ­ctor Mario Noble R...
1
by AMPL mailing list
[AMPL 15397] Finding shortest path from multiple nodes to multiple destinations by Danish
1
by LYRICS
[AMPL 19118] "Doubte in the display of answers" by Siwaporn suksee
0
by Siwaporn suksee
[AMPL 19101] How to write data a table with some data by Roberto Rosetti
1
by AMPL mailing list
[AMPL 19099] AMPL long model generation issue by Olga Kurasova
1
by AMPL mailing list
[AMPL 15323] Invalid number in NLP function or derivative detected by Mirou
4
by AMPL mailing list
[AMPL 19095] problem in constrain by rejinsr037
1
by AMPL mailing list
[AMPL 19029] AMPL Memory Management by elaadani
5
by AMPL mailing list
[AMPL 19067] Ipopt - Convex nonlinear problem with logarithmic function by pratimusc
3
by AMPL mailing list
[AMPL 19078] constraints mixed up between two optimization models by eileen.schnuetgen
3
by AMPL mailing list
[AMPL 19082] Calling data from excel by Alex_James
1
by AMPL mailing list
[AMPL 19075] Demande d'aide by moimeme diaby
2
by AMPL mailing list
[AMPL 19078] Constraints mixed between different problems and in expand command by eileen.schnuetgen
1
by Eileen-2
[AMPL 19079] Doubte in the display of answers by Siwaporn suksee
1
by AMPL mailing list
[AMPL 19073] How to determine dual values by Zoro Roronoa
3
by AMPL mailing list
[AMPL 19071] "ampl.exe has stopped working" by Ellen-22
2
by Ellen-22
[AMPL 19066] Reading data from Excel for model by anna.m.saur
1
by AMPL mailing list
[AMPL 19062] the union of set by LYRICS
1
by AMPL mailing list
[AMPL 19062] Can somebody share me a transsipment problem because I cannot undertand how to code the CEDIS or transshipments nodes. by Rafael Bernardo Carm...
1
by AMPL mailing list
[AMPL 19059] When does overflow in MINOS occur? by say3 SK
1
by Michael Saunders-3
[AMPL 19057] QUESTION, i do not understand my mistake, please help by Rafael Bernardo Carm...
1
by AMPL mailing list
[AMPL 18962] presolve settings in knitro by SS
5
by AMPL mailing list
[AMPL 19055] Error reading table with table handler tab by Hossi
1
by AMPL mailing list
[AMPL 19010] AMPLide - CurrentDirectory empty! by Peter Greistorfer
4
by Peter Greistorfer
[AMPL 19045] I do not understand this error message by Rafael Carmona
2
by Rafael Carmona
[AMPL 1079] Set of sets in AMPL? by Carl He
3
by AMPL mailing list
[AMPL 668] Use of lazy suffix by pratimusc
10
by AMPL mailing list
[AMPL 19036] Unable to get feasible solution by Arjun M
1
by AMPL mailing list
[AMPL 19042] QUESTION ABOUT SINTAXIS by Rafael Bernardo Carm...
1
by Rafael Carmona
[AMPL 19030] "No variables declared" error. by salvajohan
1
by AMPL mailing list
[AMPL 19035] [amplpy 0.6.7] Is there a difference between using setValues() and fromDict() to load dataframe from dict? by say3 SK
1
by AMPL mailing list
[AMPL 19028] How to write in a constraint for all i in J, j in J, except i=j? by Martiniano Vidal
1
by AMPL mailing list
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