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mathematica newbie question

• To: mathgroup at smc.vnet.net
• Subject: [mg66879] mathematica newbie question
• From: "Jeremy Watts" <jwatts1970 at hotmail.com>
• Date: Fri, 2 Jun 2006 04:09:08 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

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

• Follow-Ups:
  • Re: mathematica newbie question
    • From: Murray Eisenberg <murray@math.umass.edu>