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Re: Subscripts??

• To: mathgroup at smc.vnet.net
• Subject: [mg8971] Re: [mg8910] Subscripts??
• From: David Withoff <withoff>
• Date: Mon, 6 Oct 1997 01:59:41 -0400
• Sender: owner-wri-mathgroup at wolfram.com

> Hello again,
> 
> First I would like to thank all of those who helped me with my questions
> before (Union and Precision) It helped me alot.
> 
> So now for the new question: How to use Subscripts??
> 
> Subscripts are a very nice and practical idea but gives me some hard time.
> 
> 1. Subscript[A,1] // N  gives  Subscript[A,1.]  :((
> Or:  Subscript[A,E] // N gives Subscript[A,2.7...]
> 
> 2. Giving N[Subscript[a_,n_Integer]]:=Subscript[a,n] Does not work.
> 
> 3. So you tell me I should use the Utilities`Notation` package, here we go:
> 
> <<Utilities`Notation`
> Symbolize[A_1]   << Ok put here a subscript.
> 
> But now:
> Symbolize[A_2]
> 
> gives :
> 
> Symbolize::"boxSymbolExists": 
> "Warning: The box structure attempting to be symbolized has a similar
> or \ identical symbol already defined, possibly overriding previously
> symbolized \ box structure."  
> 
> ??? 
> 
> And effectively if you try and use these kind of variables together you
> will have some really hard time (some would be undefined).
> 
> So how do I get out of all this??
> 
> Thank you again.

I think that what you did here will work fine.  I didn't find any trouble
with it when I tried it.  The warning message is just that -- a warning,
sort of like a spelling message.  If you could describe any difficulties
that you've had with this, then perhaps I could make some more specific
comments about it.

Dave Withoff
Wolfram Research