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Math Help - rewrite equation

  1. #1
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    rewrite equation

    Hi,
    Is it possible to rewrite

    P_1 H X_1 - P_2 H X_2 = 0

    to something like

    (A - B) H = 0?

    Thanks!
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  2. #2
    Banned
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    Oct 2009
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    Quote Originally Posted by Timmer View Post
    Hi,
    Is it possible to rewrite

    P_1 H X_1 - P_2 H X_2 = 0

    to something like

    (A - B) H = 0?

    Thanks!

    What are P_1, H, X_1? Are these numbers, matrices...what? Is the product commutative or not?

    Tonio
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  3. #3
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    Sep 2009
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    Thanks for your reply and sorry for the lack of information.

    P1 and P2 are m x 4 matrices, X1 and X2 are 4 x n matrices and H is a 4 x 4 matrix. So the product is not commutative.

    Tim
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