Re: a question about subscript

*To*: mathgroup at smc.vnet.net*Subject*: [mg57950] Re: a question about subscript*From*: Roland Franzius <roland.franzius at uos.de>*Date*: Mon, 13 Jun 2005 05:51:18 -0400 (EDT)*Organization*: Universitaet Hannover*References*: <d892n4$sch$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Zhou Jiang schrieb: > 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. Since my posting didn't appear to appear I post again Instead of using the notation packet I prefer to use fixed strings. Typo looks the same v[t_]:=t+Subscript["t",1] v[3] Cell[BoxData[ RowBox[{"3", "+", SubscriptBox["\<\"t\"\>", "1"]}]], "Output", CellLabel->"Out[5]="] The string "t" cannot be confused with the pattern name in t_. -- Roland Franzius