The AMPL Student Edition
consists of the AMPL software together with the MINOS and CPLEX solvers. It is
limited to 300 variables and 300 constraints and objectives, and does not
support user-defined functions, but is otherwise identical to the full professional
edition.
Educational discounts for other versions of AMPL are available.
The professional edition is the full-featured, unrestricted version. Numbers
of variables and constraints are limited only by
available computer resources.
Professional edition users may choose among numerous solvers. Other solvers may be added at any time, at only
the cost of the solver software; you do not need to buy additional AMPL software
in order to add a solver.
Several experimental AMPL
graphical interfaces for Windows are available for downloading at no charge.
If you are using a Unix workstation, AMPL's command-line environment should
run nicely within a command or text window. The workstation's windowing software
lets you scroll back through an AMPL session and copy previous AMPL commands.
You can set up other windows to simultaneously view the model and data. You can
download a similar, free scrolling-window
utility for use with AMPL's command-line environment under Windows.
On AMD and Pentium-based personal computers (or "PCs"), AMPL runs under MS-DOS and its derivatives (such as IBM DOS) and under
Microsoft Windows 2000, XP and Vista (32 and 64-bit).
AMPL runs on 32 and 64-bit Linux workstations
There are not currently any versions of AMPL that support Apple Macintosh
computers.
If you are using the student
edition of AMPL that comes with the AMPL book, then you will find this
information in a booklet ("Using the AMPL Student Edition Under MS-DOS") that is
also packaged with the book.
You can look at the current version message by invoking AMPL with the -v
command-line switch:
% ampl -v
AMPL Version 20000516
Or, at any point in an AMPL session, you can see the version message by
looking at the contents of AMPL's version option, by typing
ampl: option version;
option version 'AMPL Version 20000516\
';
ampl:
or
ampl: print $version;
AMPL Version 20000516
ampl:
The 8-digit number represents a date in the form yyyymmdd -- 16 May
2000 in this example.
AMPL's modeling language and environment have continued to evolve in response
to users' needs. Thus many significant features have been added since the
publication of the AMPL book. See
the AMPL Extensions page for links
to online summaries, descriptions and examples of new features.
To obtain the latest updates to the AMPL student edition software, see our downloads page.
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