[PD] fft beginner question

[Mathieu Bouchard]

On Thu, 22 Nov 2007, marius schebella wrote:

> Mathieu Bouchard wrote:
>> this is actually cos^2+sin^2=1 in this context,
> these are not unity vextors, if you square the cosine and sine part you don't 
> get one, but a square of the amplitudes, so it is more 
> cos^2+sin^2=amplitude^2

i mean cos and sin the functions, not the components. You get the 
component equation by multiplying the whole equation by amplitude^2. I 
said it as cos^2+sin^2=1 because that's the trigonometric identity as 
taught in grade 11 or so.

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