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Re: defining consecutive variables

  • To: mathgroup at
  • Subject: [mg99462] Re: [mg99392] defining consecutive variables
  • From: DrMajorBob <btreat1 at>
  • Date: Wed, 6 May 2009 05:24:07 -0400 (EDT)
  • References: <>
  • Reply-to: drmajorbob at

Why not call each matrix q[n], rather that qn? It's more flexible  
programmatically, and what's the downside?


On Tue, 05 May 2009 04:37:58 -0500, Jason <jbiggs2 at> wrote:

> I have a code where I need to define a large number of variables as  
> matrices, called q1,q2,q3......qn. I'd like to be able to define them  
> all without writing out n assignment lines, so a Do loop seems  
> appropriate to me but I don't know how to assign sequential variable  
> names. This gets the job done but it is really ugly IMO
> f[x_] := Table[x RandomReal[], {n, 5}, {np, 5}](*for example*)
> Do[ToExpression["q" <> ToString[n] <> "=f[n]"], {n, 0, 40}]
> at the end of which I have 41 matrices which I can call as q0,q1, etc.  
> Is this the best way to accomplish this task?
> Thanks

DrMajorBob at

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