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Math Help - Easy matrix question

  1. #1
    Super Member craig's Avatar
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    Easy matrix question

    Hi just a quick question.

    I have a matrix A, and the inverse of this matrix, A^{-1} is equal to the original, ie., A = A^{-1}.

    What is the name for these type of matrices?

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  2. #2
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    according to wikipedia:

    "A matrix that is its own inverse is called an involution."
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  3. #3
    Super Member craig's Avatar
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    Thank you!
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