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Help Making A Matrix in Latex?

  1. Apr 11, 2009 #1
    Help Making A Matrix in Latex??

    Hi, I need to make an nxn square matrix using Latex with 1's starting in the bottom left all the way up to the top right on that sort of opposite diagonal. I can't figure out to do it. Can anyone help? Thank you.
     
  2. jcsd
  3. Apr 11, 2009 #2

    tiny-tim

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    Hi azdang! :smile:

    See http://www.physics.udel.edu/~dubois/lshort2e/node56.html#SECTION00850000000000000000 [Broken] :wink:
     
    Last edited by a moderator: May 4, 2017
  4. Apr 11, 2009 #3
    Re: Help Making A Matrix in Latex??

    Hi Tiny Tin, thanks for the website. I have a few websites that I look at often for Latex help, but I haven't come across anything helpful. I have no trouble making normal diagonal matrices, but I don't know how to only get elements in positions [tex]a_{(n,1)},a_{(n-1,2)},a_{(n-2,3)},...a_{(1,n)}[/tex].

    And I don't want any vertical dots or anything because all other elements are zero. The only place I would want dots would be on this reverse diagonal in between elements [tex]a_{n,1}[/tex] and [tex]a_{1,n}[/tex] to indicate that \lambda is along this diagonal.
     
  5. Apr 11, 2009 #4

    tiny-tim

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    :rolleyes:
    look at the link!​
     
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