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Math Help - Pr symbol question..

  1. #1
    MHF Contributor
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    Pr symbol question..

    i looked everywhere and i couldnt find what
    is the link between Pr and fejer's kernel
    what is Pr
    ?

    f_r(x)=\frac{1}{2\pi}\int_{-\pi}^{\pi}f(x-t)P_r(t)dt=\sum_{n=1}^{\infty}C_nr^{|n|}e^{inx}
    Last edited by transgalactic; December 20th 2009 at 04:55 AM.
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