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 (6292)
Replies Last Post Views
[AMPL 1867] fix command by Mushi
1
by Eli Olinick
[AMPL 1861] how to link ampl with minos by Chris-616
0
by Chris-616
[AMPL 1842] divergance problem by humaira fazal
1
by Robert Fourer-2
[AMPL 1857] column generation by patrick-131
1
by Robert Fourer-2
[AMPL 1841] Defining declarations on subscripted variables by Jacob JKW
4
by Robert Fourer-2
[AMPL 1851] iterations by Dr. P K Modi
2
by Robert Fourer-2
[AMPL 1850] How to model inequility constraint by Chien-Chung Huang
1
by Paul A. Rubin
[AMPL 1855] How to model the inequailty constraint by Chien-Chung Huang
0
by Chien-Chung Huang
[AMPL 1849] Passing dual value from the 1st subproblem to the 2nd subproblem by rtt-2
0
by rtt-2
[AMPL 1820] Appending to logfile? by Jacob JKW
6
by Robert Fourer-2
[AMPL 1821] "can't open at3916.nl" -- swap file error? by Jacob JKW
3
by Jacob JKW
[AMPL 1838] the number of nodes visited by gulaysamatli
0
by gulaysamatli
[AMPL 1837] Initializing the .dual by David Veerasingam
0
by David Veerasingam
[AMPL 1834] Constraint _scon[1] is not convex quadratic since it is equality constraint by Chris-616
2
by medvall
[AMPL 1833] AMPL CPLEX unusual termination by kim73327
0
by kim73327
[AMPL 1832] AMPL CPLEX unusual termination by kim73327
0
by kim73327
[AMPL 1826] Seemingly incorrect behavior: AMPL if block evaluation by David Veerasingam
2
by David Veerasingam
[AMPL 1827] Initial value for a variable... by Poppu
1
by pietro belotti
[AMPL 1824] Compiling Sets by patrick-131
1
by Paul A. Rubin
[AMPL 1817] Using solution of a problem as data for another problem by Ruben Proano
1
by Paul A. Rubin
[AMPL 1818] input and ouput function by Dr. P K Modi
0
by Dr. P K Modi
Shell Editor and Auto Complete by Lex Fridman
1
by Hans Mittelmann
[AMPL 1813] Using variable solution in model expression by bbmdavid
1
by Robert Fourer-2
[AMPL 1809] Solving a nonlinear problem with an imported function in the objective by Rodolfo Carboni Borr...
3
by yorck
error message: bad e->a in heswork by Steven Joyce
3
by Steven Joyce
[AMPL 1800] "expand" command to display the cuts in a benders decomposition by xinfang.jocelyn.wang
1
by xinfang.jocelyn.wang
[AMPL 1805] Solution limit, Time limit, Absmipgap by Kanika-3
0
by Kanika-3
[AMPL 1803] Reading data from .sol into Matlab by IndyJones
0
by IndyJones
[AMPL 1804] Matrices in AMPL by IndyJones
0
by IndyJones
[AMPL 1802] Is there any use of the "alias" option by fabio.schoen
0
by fabio.schoen
[AMPL 1801] Information by jarvis bengt
0
by jarvis bengt
[AMPL 1796] Display the problem size by ziming guan
1
by Robert Fourer-2
[AMPL 1794] How to load user defined functions (.DLL)? by Rodolfo Carboni Borr...
1
by Robert Fourer-2
[AMPL 1789] max length of AMPL log file? by Larry Snyder-3
1
by Robert Fourer-2
[AMPL 1792] implement L-shaped method using AMPL, unexpected error by Eric-105
0
by Eric-105
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