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MathGroup Archive 1999

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Re: col-vector * row-vector = matrix, how ?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg18475] Re: col-vector * row-vector = matrix, how ?
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Wed, 7 Jul 1999 23:08:39 -0400
  • Organization: Universitaet Leipzig
  • References: <7lumbd$leb@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Hi Malte,

Outer[Times,{a,b,c},{x,y,z}]

will do this.

Regards
  Jens

Malte Lance wrote:
> 
> Need to know how to accomplish the following in Mathematica-3.0:
> 
> v1 := transpose(<a,b,c>)   /* column-vector */
> 
> v2 := <x,y,z>              /* row-vector */
> 
> ( ax ay az )
> ( bx by bz ) = v1 * v2 =: m /* 3x3-matrix */
> ( cx cy cz )
> 
> Does anyone know how to do this in Mathematica ?
> 
> Any help is highly appreciated.
> Thanks in advance.
> 
> Malte.
> 
> --
> Malte Lance.
> --- composed with knews


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