Classic Fourier Series

[Snorre]

Hello Salvo,

I think it's a matter of taste, but I do prefer the complex coefficients, because you see (ak,bk) directly (especially if you choose (a,b) format for complex numbers instead of a+b*i) and it's so easy to get the magnitude (abs) and phase (arg), which are in practice more interesting than sin/cos-parts.

I do not know, how a0 is exactly defined. But since it should be the mean (DC-coefficient) I'd divide the integral by its width 2*pi.

Greetings