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Homework Help: Row Echelon Form

  1. Jun 26, 2010 #1
    Say I am given a matrix and am supposed to put the matrix in row echelon form, does swapping two rows change the final matrix? Say I have:

    3 1 4
    1 1 1
    0 1 3

    It would save time to swap the first two rows, however when I do that on my problems the first row is wrong.
  2. jcsd
  3. Jun 26, 2010 #2
    I've found my answer.

    Seems that REFs aren't unique and depend on the order and number of EROs.
  4. Jun 26, 2010 #3


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    Staff Emeritus
    Science Advisor
    Gold Member

    Reduced row echelon forms should be unique, though.
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