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MathGroup Archive 1998

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Re: How to transpose vector?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg14680] Re: How to transpose vector?
  • From: Anton Antonov <anton at unidhp1.uni-c.dk>
  • Date: Sun, 8 Nov 1998 21:15:39 -0500
  • Organization: UNI-C, Denmark
  • References: <720th6$1vl@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

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.jp

  Hi, Nobuhiko Tamura

    Let us suppose that
    alpha={a,b,c}
    beta={A,B,C}

    then

    Transpose[{alpha}] . {beta}

    gives

    {{aA, aB, aC},
      {Ab, bB, bC},
      {Ac, Bc, cC}}

     alpha is just a vector but {alpha} is a matrix and you can apply
Transpose[].

    Hope I understood your question right.

    Anton



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