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  • Subject: [mg110262] Answer
  • From: "S. B. Gray" <stevebg at ROADRUNNER.COM>
  • Date: Thu, 10 Jun 2010 08:10:59 -0400 (EDT)
  • Reply-to: stevebg at ROADRUNNER.COM

How can you create a set of variables: x1 to xn  using the Table, or some
similar function?    I need a large list of variables to use in a linear
program and so far have to type them out manually.


One easy was is for example ta = Table[Subscript[q, j], {j, 10}].
This gives you 10 subscripted variables. Then you can do the usual 
operations such as Subscript[q,5]=7 . Then ta is

{Subscript[q, 1], Subscript[q, 2], Subscript[q, 3], Subscript[q, 4], \
7, Subscript[q, 6], Subscript[q, 7], Subscript[q, 8], Subscript[q, \
9], Subscript[q, 10]}

It is easier to bring up the Basic Math palette and use it to make the 
subscripts rather than using Subscript[ ].

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