Re: How to construct a matrix like this ?
- To: mathgroup at smc.vnet.net
- Subject: [mg50899] Re: How to construct a matrix like this ?
- From: "Steve Luttrell" <steve_usenet at _removemefirst_luttrell.org.uk>
- Date: Mon, 27 Sep 2004 00:42:05 -0400 (EDT)
- References: <cj63a6$qpr$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
This does what you want:
Array[a, {2, 2}] /. a[i_, j_] :> Symbol[StringJoin["a", ToString[i],
ToString[j]]]
Alternatively you could miss out the Array[a, {2, 2}] step:
Table[Symbol[StringJoin["a", ToString[i], ToString[j]]], {i, 2}, {j, 2}]
Steve Luttrell
<zhoukm at hotmail.com> wrote in message news:cj63a6$qpr$1 at smc.vnet.net...
> With Array[a, {2,2}] I can get an array like:
> | a[1,1] a[1,2] |
> | a[2,1] a[2,2] |.
> But occasionally I want matrix like:
> | a11 a12 |
> | a21 a22 |
> I remember I once figured out a way to do it but now I forgot. Anyone
> can give me a hand?
>
> Regards
>