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Homework Help: Fourieranalysis : L^2 projection

  1. Oct 12, 2016 #1
    1. The problem statement, all variables and given/known data
    Opgave 14.PNG

    2. and 3. Relevant equations and the attempt at a solution
    We find the L^2 projection as such: [tex] <b_j , e_j > [/tex], where e_j is orthonormal basis j.

    Now set [tex] b_j = < x^2 , e_j > [/tex] for [tex] 1 \leq j \leq 3 [/tex].
    Last edited: Oct 12, 2016
  2. jcsd
  3. Oct 12, 2016 #2

    Ray Vickson

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    Homework Helper

    Is there a question in here somewhere?
  4. Oct 12, 2016 #3
    Hi Ray. Yes and I've developed my solution much more. It's still not quite correct though.
    Will someone help me?
    Opgave 14 a.PNG
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