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Using fft on a partially staggered grid

  1. Jun 2, 2015 #1
    Hi, I was wondering if anyone could give me a hand.

    I am wondering if it possible to use standard spectral methods to compute the derivative of a function on a partially staggered grid.

    e.g. from 0 to pi I would perform the differentiation on the nodes

    j*(pi/N) j=1,2,3 ..... N-1

    and from 0 to pi i would preform the differentiation on

    pi+(pi/2N)+(j-N)*(pi/N) j=N,...., 2N-1

    possibly a standard interpolation scheme would be sufficient but i was wondering if anyone had any better ideas

  2. jcsd
  3. Jun 7, 2015 #2
    Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
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