of sinx
I'm really confused.
Thanks
The Fourier series of a 'full wave rectified' $\displaystyle f(x)= |\sin x|, -\pi<x<\pi$ is...
$\displaystyle \displaystyle f(x)= \frac{2}{\pi} - \frac{4}{\pi}\ (\frac{\cos 2x}{1\ 3} + \frac{\cos 4 x}{3\ 5} + \frac{\cos 6 x}{5\ 7}+ ...)$ (1)
Kind regards
$\displaystyle \chi$ $\displaystyle \sigma$