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Thread: MC problem in Linear Algebra

  1. #1
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    MC problem in Linear Algebra

    Hello,

    I would like to know the answer of this multiple choice problem and I want to know the meaning of the two 2s next to the norm sign.

    Thanks in advance,
    MC problem in Linear Algebra-ask.jpg
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  2. #2
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    Re: MC problem in Linear Algebra

    ||.||_p represents the p-norm.

    In your case, this the two 2s represents the Euclidean norm, squared.

    Reference: regression - What is the meaning of super script 2 subscript 2 within the context of norms? - Cross Validated
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  3. #3
    MHF Contributor

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    Re: MC problem in Linear Algebra

    Where did you get this problem if you do not even know the notation? I cannot imagine a text book using the notation ||x||_2 without first having defined it!
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  4. #4
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    Re: MC problem in Linear Algebra

    Quote Originally Posted by HallsofIvy View Post
    Where did you get this problem if you do not even know the notation? I cannot imagine a text book using the notation ||x||_2 without first having defined it!
    No, it isn't from a text book ... I was just trying to solve some problems from an online website "brilliant"
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