Re: lists of variables
- To: mathgroup at smc.vnet.net
- Subject: [mg58161] Re: [mg58156] lists of variables
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Tue, 21 Jun 2005 06:02:34 -0400 (EDT)
- Reply-to: hanlonr at cox.net
- Sender: owner-wri-mathgroup at wolfram.com
var[x_String, n_Integer?Positive] :=
ToExpression[Table[x<>ToString[k],{k,n}]];
f[x_,y_,z_] := Cos[x+y-z];
f@@var["t",3]
Cos[t1 + t2 - t3]
Bob Hanlon
>
> From: Heath Gerhardt <heathgerhardt at hotmail.com>
To: mathgroup at smc.vnet.net
> Date: 2005/06/20 Mon AM 05:21:33 EDT
> Subject: [mg58161] [mg58156] lists of variables
>
> I need to make lists of variables, for example
>
> {t1,t2,t3}
>
> but have not been able to figure out how to make Mathematica do this.
> Tried using
>
> Array[t,3]
>
> which gives
>
> {t[1],t[2],t[3]}
>
> but then I don't know how to set the t[i]'s in expressions similar to
>
> F[t[1]_,t[2]_,t[3]_]:=Cos[t[1]+t[2]-t[3]]
>
> thanks in advance
> Heath
>
>