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MathGroup Archive 1998

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Re: How to transpose vector?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg14689] Re: How to transpose vector?
  • From: Selwyn Hollis <shollis at peachnet.campus.mci.net>
  • Date: Sun, 8 Nov 1998 21:15:47 -0500
  • Organization: fair
  • References: <720th6$1vl@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Mr. Tamura,

I suspect that the problem comes from the way you've defined the
matrices. For example, this defines two 3x1 matrices and displays them
as column vectors in MatrixForm:

    a={{1},{2},{3}}; b={{2},{3},{4}};
    a//MatrixForm
    b//MatrixForm

Or you could use

    a={{1,2,3}}//Transpose; b={{2,3,4}}//Transpose;

Now, enter

    c=a.Transpose[b]
    c//MatrixForm

to get the 3x3 product.


Nobuhiko Tamura wrote:

> I have a problem about manupirating vectors. I wanted to make 3x3
> matrixtwo by using 3x1 vector alpha and beta. and I tried by
>
> >>Transpose[alpha].beta
>
> but it dosen't work.
> Please tell me how to do it.
>
> Sorry for poor English.
> Nobuhiko Tamura
> @Chiba university
> Japan
>
> Email-> ntamura at tky2.3web.ne.j

--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Dr. Selwyn Hollis
Associate Professor of Mathematics
Armstrong Atlantic State University
Savannah, GA 31419 USA
<http://www.math.armstrong.edu/faculty/hollis/>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~



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