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Math Help - Someone aware me on magic differentiation

  1. #1
    Super Member Deadstar's Avatar
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    Someone aware me on magic differentiation

    Like in this thread...

    http://www.mathhelpforum.com/math-he...-integral.html

    From simplependulums post.

    I've seen it used in another thread as well.

    What is it?
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  3. #3
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    I am not sure what he is doing but since it is a definite integral, why not define an inner product and orthonormal vectors in [0,1]? Then you can avoid the messy integration.
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  4. #4
    Super Member Deadstar's Avatar
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    Quote Originally Posted by dwsmith View Post
    I am not sure what he is doing but since it is a definite integral, why not define an inner product and orthonormal vectors in [0,1]? Then you can avoid the messy integration.
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