Re: Fourier Series Problem.

Without doing the work I'm guessing that with the right choice of x value you will get

|x| = constant + constant * (your sum)

Re: Fourier Series Problem.

I haven no idea what you are talking about :S

Re: Fourier Series Problem.

I know what the Fourier Series is if that helps at all, it's:

f(x) = (1/2)+sum k=1 to infinity 2[((-1)^k-1)/(pi^2*k^2))*cos(k*pi*x)]

Re: Fourier Series Problem.

Re: Fourier Series Problem.

Strange, I make it and with x=1 it certainly gives the correct answer for the sum.