Graph expression for fourier series

Discussion in 'Math' started by smarch, Dec 18, 2010.

  1. smarch

    Thread Starter Active Member

    Mar 14, 2009
    Can someone help me out. How would you write a mathematical expression for the graph that is attached. f(t) = ? 0 < t < 2pi
  2. mik3

    Senior Member

    Feb 4, 2008
    This has the form:


    In this case, a=\frac{A}{T}
  3. someonesdad

    Senior Member

    Jul 7, 2009
    You typed in that you need the functional expression over the interval from 0 to 2pi. The sawtooth waveform you provided the picture for has a period of 2. There's no simple way to write a single formula without using things like the unit step function (so as to be able to handle three discontinuities in that interval). Your interval could also be a typo, so you need to amend your post and make sure we know exactly what you want.

    It helps a great deal if you tell us what you're trying to accomplish or at least if you can describe a little about the context of your question.
  4. mik3

    Senior Member

    Feb 4, 2008
    I think he wants to find the equation of the waveform shown from 0 to T as to find its fourier series.