Re: How to mutiply a 3x1 and 1x3 vector
- Subject: [mg3081] Re: [mg3068] How to mutiply a 3x1 and 1x3 vector
- From: dschneid at knox.edu ("Dennis M. Schneider")
- Date: 31 Jan 1996 04:57:06 -0600
- Approved: usenet@wri.com
- Distribution: local
- Newsgroups: wri.mathgroup
- Organization: Wolfram Research, Inc.
- Sender: daemon at wri.com
{{1},{2},{3}}.{{3,4,5}} or Transpose[{{1,2,3}}].{{3,4,5}} Dennis M. Schneider Knox College On Tue, 30 Jan 1996, Stephen Nichols wrote: > > 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, > > >