Results 1 to 2 of 2

Math Help - Matrices

  1. #1
    malcolm
    Guest

    Matrices

    does Ainverse*D*A will get D OR I HAVE TO MULTIPLE THE THREE MATRICES TOGHETHER
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Junior Member
    Joined
    Aug 2005
    Posts
    53

    not commute

    Hi,

    generally, matricies do not commute (exemple of non-commutativity are the words were the object are letters and the operation is concatenation (put together in order) : putting a,r,c together can given words like car or arc but car is not the same as arc even if they use the same letters)

    the same way Ainverse D A is not always the same as D A Ainverse (= D) and so Ainverse D A is not always the same as D because D A Ainverse = D.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 2
    Last Post: November 25th 2010, 06:34 PM
  2. Total matrices and Commutative matrices in GL(r,Zn)
    Posted in the Advanced Algebra Forum
    Replies: 8
    Last Post: August 16th 2010, 02:11 AM
  3. Matrices Help
    Posted in the Advanced Algebra Forum
    Replies: 1
    Last Post: October 24th 2009, 09:36 PM
  4. Matrices represented by Symmetric/Skew Symmetric Matrices
    Posted in the Advanced Algebra Forum
    Replies: 7
    Last Post: October 25th 2008, 05:06 PM
  5. matrices
    Posted in the Algebra Forum
    Replies: 2
    Last Post: November 13th 2007, 02:36 PM

Search Tags


/mathhelpforum @mathhelpforum