8.4, due Nov. 30

Difficult:
I had a hard time following the proof of the fast Fourier Transform algorithm. I did think it was neat that we were able to take advantage of mathematical symmetry to improve performance from O(n^2) to O(nlogn)!

Reflective:
I thought it was pretty cool that because the DFT can be represented as an orthonormal, it is not only invertible, but very easy to invert!

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