I have a problem with the below fourier series -2, -2 < t < -1 -1, -1 < t < 0 f(t) = 1, 0 < t < 1 2, 1 < t < 2 f(t + 4) = f(t) I want to intergrate by parts to go on to solve bn but dont how what U will be.
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Originally Posted by hunterage2000 I have a problem with the below fourier series -2, -2 < t < -1 -1, -1 < t < 0 f(t) = 1, 0 < t < 1 2, 1 < t < 2 f(t + 4) = f(t) I want to intergrate by parts to go on to solve bn but dont how what U will be. You want to find the Fourier series of You should not need integration by part. The function is constant on each interval. Here is a PDF with the series.
its
That make the problem easier. is an odd function so all of the must be zero.
so what is the value of U? is it 2 + 1 or 3?
Originally Posted by hunterage2000 so what is the value of U? is it 2 + 1 or 3? I don't understand what you mean. What is U?? and 2+1=3 so I am really confused.
U as in the intergration by parts U. U = ? dv/dt = cos (n*pi*t/2) du/dt = ? v = -2/n*pi sin(n*pi*t/2)
As I said in my first post you do not need integration by parts. Or in your case
totally new to this. can u show me from start to finish how you got the answer?
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