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Can someone please share a link or source where I can find the derivation of FFT(base-2) from the DFT. I need to put this in latex for my thesis and am finding so many different explanations that I don't know which one to use.

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    The exposition at Wikipedia (http://en.wikipedia.org/wiki/Cooley%E2%80%93Tukey_FFT_algorithm%23The_radix-2_DIT_case) seems OK?2011-02-25

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I guess I found a better link. Thank you for your help.