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MathGroup Archive 1996

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How to mutiply a 3x1 and 1x3 vector

  • Subject: [mg3068] How to mutiply a 3x1 and 1x3 vector
  • From: snichols at onramp.net (Stephen Nichols)
  • Date: 30 Jan 1996 04:23:14 -0600
  • Approved: usenet@wri.com
  • Distribution: local
  • Newsgroups: wri.mathgroup
  • Organization: On-Ramp; Individual Internet Connections; Dallas/Ft Worth/Houston, TX USA
  • Sender: daemon at wri.com


Hi,

I have another question that I thought would be simple to to in Mathematica.
I have two vectors A={1,2,3} and B={3,4,5}.  How do I multiple them together
to get a 3x3 matrix.  A . B gives me a scalar result.  Mma seems to always
treat the first one as a row vector and the second as a column vector.  I
need it to do the opposite.  Treat the first as a column vector and the second
as a row vector.  Any ideas?

thanks,



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