Re: mathematica newbie question

*To*: mathgroup at smc.vnet.net*Subject*: [mg66906] Re: mathematica newbie question*From*: "Scout" <Scout at nodomain.com>*Date*: Sat, 3 Jun 2006 03:25:48 -0400 (EDT)*References*: <e5osv8$i51$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

"Jeremy Watts" <jwatts1970 at hotmail.com> news:e5osv8$i51$1 at smc.vnet.net... > 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? > Hi Jeremy, take a look at Matrix Operations in the Help Browser. In order to do a matrix power you can use the MatrixPower[] command. In[1]:= MatrixPower[{{0, 0, 0}, {1, -1, -1}, {-1, 1, 1}}, 2] Out[1]= {{0,0,0},{0,0,0},{0,0,0}} > Thanks > > You're welcome. ~Scout~