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Thread: Definiteness of a matrix

  1. December 13th 2011, 05:41 PM #1
    MAX09
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    Lightbulb Definiteness of a matrix

    Disclaimer- i wasn't sure whether to post this under Matrices or Adanced topics.

    Kindly excuse the inconvenience.
    Definiteness of a matrix-definiteness_matrix.jpg
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  2. December 13th 2011, 11:54 PM #2
    Opalg
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    Re: Definiteness of a matrix

    Your matrix A has determinant –4, not 0. It is negative semidefinite.
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  3. December 14th 2011, 03:00 AM #3
    MAX09
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    Re: Definiteness of a matrix

    hi i guess i typed the question wrong. I'll follow with up another post on this... i apologise for the inconvenience.
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