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When to use RREF in finding Eigenvectors

  1. Dec 15, 2012 #1
    Hi,

    I have a quick question, when should one use RREF in finding eigvenvectors? I've read through some books and sometimes they use them and sometimes they do not. I'm sorry for such a potentially stupid question.

    Thanks,

    Zubin
     
  2. jcsd
  3. Dec 16, 2012 #2
    It could be that having one in the pivot position position makes it easier to write system in parametric vector form. Otherwise row echelon form would suffice.
     
    Last edited: Dec 16, 2012
  4. Dec 17, 2012 #3

    HallsofIvy

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    Where did you find that "they sometimes use them"? The row reduced form of a matrix does NOT in general have the same eigenvalues as the original matrix so I do see how row reducing could help.
     
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