Re: Manipulating a matrix
- To: mathgroup at smc.vnet.net
- Subject: [mg59342] Re: Manipulating a matrix
- From: Lee Newman <leenewm at umich.edu>
- Date: Sat, 6 Aug 2005 01:29:35 -0400 (EDT)
- References: <dcmuig$glg$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
This may not be most eloquent way to do it, but should work:
m = Table[1, {4}, {4}]
n = Length@m;
m[[Range[2, n], Range[2, n]]]
{{1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}}
{{1, 1, 1}, {1, 1, 1}, {1, 1, 1}}
Ramier wrote:
> Hello everyone,
>
> I think that my question is rather simple and maybe I ought to go
> deeper into Mathematica book:
> I have a n x n matrix and I'd like to remove the first line and the
> first column in order to get the (n-1)x(n-1) matrix with the entries
> remaining. Is there a simple way to do that ?
>
> Perhaps my question is really simple or idiot but I've never used
> Mathematica before.
>
> Thanks a lot,
>
> Wissam
>
--
- Lee
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