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Graphing a Fourier Series on a TI-84 Plus not working so well

  1. Jul 1, 2013 #1
    Hi!

    I was wondering how you would graph a Fourier series for a square wave that periodic. My textbook gave something proper that I would expect (just google 'Square Wave Fourier Series Expansion') while my TI - 84 gave a image like the one somewhere in this thread. It would be nice if anybody could help me fix this.

    My TI 84 screen:
    SCREEN01.JPG

    Sincerely,
    QuantumPixel
     
  2. jcsd
  3. Jul 2, 2013 #2

    HallsofIvy

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    what interval is the period? How many terms did you take for the series?
     
  4. Jul 2, 2013 #3
    Between the intervals of [-1,1] and 11 terms.
     
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