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Math Help - Householder matrices

  1. #1
    Super Member Random Variable's Avatar
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    Householder matrices

    I'm given a 3x1 Householder vector (u) and a 3x2 matrix (A). The problem asks to find both HA and AH (where H is the associated Householder matrix). But how does AH even exist? The associated Householder matrix is 3x3.
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  2. #2
    Member HappyJoe's Avatar
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    Quote Originally Posted by Random Variable View Post
    I'm given a 3x1 Householder vector (u) and a 3x2 matrix (A). The problem asks to find both HA and AH (where H is the associated Householder matrix). But how does AH even exist? The associated Householder matrix is 3x3.
    I agree that it looks like a mistake. Perhaps it was meant to be A^TH.
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