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Re: a question about subscript

• To: mathgroup at smc.vnet.net
• Subject: [mg57863] Re: a question about subscript
• From: "Tomas Garza" <tgarza10 at msn.com>
• Date: Fri, 10 Jun 2005 02:29:29 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

You should use ":=" instead of just "=" if you are defining a function. 
Please look at SetDelayed in the Help browser, especially the further 
examples. I can't see how you get v[0] = 01. I get v[0]. The subscript may 
be typed as Subscript[t,1] or t Ctrl- (i.e. the letter t followed by 
simultaneously pressing control-minus).

Tomas Garza
Mexico City

>From: Zhou Jiang <jiangzhou_yz at yahoo.com>
To: mathgroup at smc.vnet.net
>Subject: [mg57863]  a question about subscript
>Date: Thu, 9 Jun 2005 05:18:10 -0400 (EDT)
>
>Hi,  my friends,
>
>I want to take the advantage of the subscript in Mathematica 5.1.
>I defined a function like the following:
>
>v[t_]=t+t1
>
>Since this is a plane text, I cannot type in the subscript t1 (i.e., t sub 
>1) for you. This is so simple which represents a time translocation of t1. 
>I want Mathematica to compute v[0] and it is supposed to give t1 (ie. t sub 
>1).  I typed in v[0] but Mathematica gives me 01 (i.e., 0 sub 1). Obviously 
>it is not the correct answer. Can anyone give me some insight of this 
>delima? Thanks a lot.
>
>
>