Re: mathematica newbie question
- To: mathgroup at smc.vnet.net
- Subject: [mg66895] Re: [mg66879] mathematica newbie question
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Sat, 3 Jun 2006 03:25:13 -0400 (EDT)
- Reply-to: hanlonr at cox.net
- Sender: owner-wri-mathgroup at wolfram.com
mat=Array[a,{3,3}];
mat^2==(#^2&/@mat)
True
mat.mat==MatrixPower[mat, 2]
True
See Help for MatrixPower
Bob Hanlon
---- Jeremy Watts <jwatts1970 at hotmail.com> wrote:
> Hi,
>
> Just trying to get to grips with Mathematica and matrices. Why is it when I
> enter :-
> {0, 0, 0}, {1, -1, -1}, {-1, 1, 1}}^2
>
> then Mathematica returns :-
>
> {{0, 0, 0}, {1, 1, 1}, {1, 1, 1}}
>
> and not {{0,0,0},{0,0,0},{0,0,0}} (the actual square of the matrix) as I'd
> have expected?
>
> Is it treating what I entered as separate vectors or something, and not an
> actual matrix?
>
> Thanks
>
>
--
Bob Hanlon
hanlonr at cox.net