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Math Help - Matrix question...just a thought

  1. #1
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    Matrix question...just a thought

    I was wondering, how come when AX=0, A is equal to the identity matrix?
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by buckaroobill View Post
    I was wondering, how come when AX=0, A is equal to the identity matrix?
    You appear to be confused. If A is non singular AX=0 implies that X is the zero vector.

    In general AX=0 means that X is in the null space of A, and may be non-zero if A is singular.

    RonL
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