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MathGroup Archive 2002

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Re: Matrix

  • To: mathgroup at smc.vnet.net
  • Subject: [mg34853] Re: [mg34829] Matrix
  • From: "Y.A. Tesiram" <yas at pcomm.hfi.unimelb.edu.au>
  • Date: Sun, 9 Jun 2002 05:10:33 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Hi

In[1]:=
A = {{1, 1}, {1, 0}};

In[2]:=
?Dot

In[2]:=
"a.b.c or Dot[a, b, c] gives products of vectors, matrices and tensors."

In[3]:=
Dot[A, A]

Out[3]=
{{2, 1}, {1, 1}}


On Sat, 8 Jun 2002, Pirc wrote:

> If matrix A = ((1, 1) (1, 0)), Mathematica reports A * A as A.
>
> Shouldn't A * A = ((2, 1) (1, 0))?
>
> What am I missing?
>
> Thanks.
>
>



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