Fourier Series Expansion Question

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Fourier Series Expansion Question

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30-04-2009, 22:13

vamfun

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Re: Fourier Series Expansion Question

Quote:

Originally Posted by sanddrag

Having a little trouble understanding this math.
I noticed the Ao term is divided by two, where in other texts I see it like more this:

If I divide Ao by two, the fourier expansion sits way too low on the plot. Is Ao supposed to be divided by two or not?

Ao is the DC component... You can check your formula by assuming f(x) = constant = c and integrate over the period. You will probably find that A0 = 2*C so it is necessary that f(x) = A0/2 + .... unless your formula for An has a 2 compensation built in.

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