To find the sum of a fourier series ?

  • Thread starter cabellos
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  • #1
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to find the sum of a fourier series....?

My problem is:

I must find the sum of ((-1)^(n+1))/2n-1 between infinity and n=1.

I have looked in all my available textbooks for a clear example but im still unsure as to how i should approach the problem?

Help with this would be much appreciated.

Thankyou.
 

Answers and Replies

  • #2
Dick
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Do you really have to sum it, or just show it converges? The former is easy. I'm not sure how to do the latter unless someone can think of a taylor series that resembles your series.
 
  • #3
Dick
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Try this. Take the series for log(1+x) and think about putting x=i.
 
  • #4
HallsofIvy
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But that's not a "Fourier series", that's just a power series.
 

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