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Sketching discrete time signal

  1. Feb 1, 2013 #1
    Discrete signal x[n] is shown in the first picture. Sketch x[2n]



    Can anyone ecplain why x[2n] is like that. I can understand how to plot it if i have a continous time signal
  2. jcsd
  3. Feb 1, 2013 #2

    rude man

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    On the second picture's x axis, n = 2n of the first picture's x axis.
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