[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??