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From: bos1234 on 14 May 2010 23:48
is there a method to memorise the butterfly? If anyone has any tricks? or
how does the butterfly diagram come about??

need it for a exam
From: HardySpicer on 14 May 2010 23:56
On May 15, 3:48 pm, "bos1234" <suren130(a)n_o_s_p_a_m.gmail.com> wrote:
> is there a method to memorise the butterfly? If anyone has any tricks? or
> how does the butterfly diagram come about??
>
> need it for a exam

It's just a two point DFT. Once you have it you can work out what the
signal-flow looks like.

Hardy
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