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[Fwd: Subscripts??]

• To: mathgroup at smc.vnet.net
• Subject: [mg8966] [Fwd: [mg8910] Subscripts??]
• From: Jason Harris <jasonh>
• Date: Mon, 6 Oct 1997 01:59:35 -0400
• Sender: owner-wri-mathgroup at wolfram.com

Hi Gadi Oron,

The easy answer to the question you ask below is to download the latest
version of Notation from http://www.wolfram.com/~jasonh/Notation.html

Basically the error message was meant to be analogous to the error message
one gets about the spelling of variable names. E.g. if one enters

xtemp=1;
ytemp=2;

you will get the message

General::"spell1":
    "Possible spelling error: new symbol name ytemp is similar to
existing symbol xtemp."

This is what I had originally modeled my error message on, however there
was too much confusion about this among users so I dropped it in later
versions. (Possibly I should have had a more detailed error message). Note
this change was included was included in Mathematica 3.0.1.


Cheers,

   Jas

>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??