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Re: Subscript Variable

• To: mathgroup at smc.vnet.net
• Subject: [mg20302] Re: Subscript Variable
• From: William Golz <wgolz at attglobal.net>
• Date: Tue, 12 Oct 1999 03:39:36 -0400
• Organization: Global Network Services - Remote Access Mail & News Services
• References: <7tcanr$m5f@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

Jack,

I have had a similar problem, but have not found a workaround. Subscripted
variables in 3.0 exhibit some very unexpected behavior. You can, however,
define them as f1, f2, where the numerals are not subscripts.

CORNIL Jack Michel wrote:

> Hello,
>
> I have a problem about subscript variables.
>
> First Question :
>
> If I use a variable named Subscript[x,1] ,
> (typed in with Ctrl _)
>
> I can affect a value to this variable, get value of expressions
> involving this variable, clear this variable with . but not with Clear[]
> !
>
> This variable is not given when I ask Names["x*"] and I cannot get
> information on it with ?.
>
> Second Question :
>
> If I use such a variable in order to define a function with
>   f1[x_]=x^2+1
> I cannot clear the variable with f1=.
> (of course, just above f1 means Subscript[f,1])
>
> Thanks a lot for any help
>
> J.Michel CORNIL