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Singular Value Decomposition of an nxn matrix?

  1. Nov 22, 2009 #1
    I was just wondering if it was possible to find the singular value decomposition of an nxn matrix such as

    1 1
    -1 1

    I tried this but then when finding the eigenvectors of A^T*A I found there were none (non-trivial anyhow).

    So, is this not possible?

    EDIT:

    How embarrassing I made an error in my calculations. Sorry, it's all good now.
     
    Last edited: Nov 22, 2009
  2. jcsd
  3. Nov 22, 2009 #2

    Dick

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    What do you think A^T*A is? It looks to me like it has lots of eigenvectors.
     
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