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It is important to emphasize the presence of the semicolon at the end of the first line. Without it, the GAMS compiler would
attempt to interpret both lines as parts of the same statement. (GAMS would fail to discern a valid interpretation, so it would
send you a terse but helpful error message.)
The effects of the first statement above are to declare the parameter c, to specify the domain (i,j), and to provide some
documentary text. The second statement assigns to c(i,j) the product of the values of the parameters f and d(i,j).
Naturally, this is legal in GAMS only if you have already assigned values to f and d(i,j) in previous statements.
The direct assignment above applies to all (i,j) pairs in the domain of c. If you wish to make assignments for specific
elements in the domain, you enclose the element names in quotes. For example,
Preface
This documentation guides GAMS User through several topics in GAMS system. Some introductions to software systems
are like reference manuals: they describe each command in detail. Others take you step by step through a small number of
examples. This guide uses elements of both approaches.
• Introduction and Tutorial - This is a self-contained tutorial that guides you through a single example, a small
transportation model, in some detail: you can quickly investigate the flavor of GAMS by reading it.
– Introduction - an introductory to GAMS User's Guide.
– Tutorial - A GAMS Tutorial by Richard E. Rosenthal.
Why MIRO?
GAMS MIRO's features open up entirely new opportunities to share and distribute your models:
Jobs submitted via the broker are placed in a queue, and from there they are assigned to available GAMS workers. Results from the workers are collected by the broker and made available to the user.
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