2
$\begingroup$

I'm finding it hard to find a derivation of the DFT from books, was wondering if someone can point me to some resources or attempt to explain it here.

  • 1
    Derivation... from what? For instance, there is a way to see DFT as an approximation to Fourier series. There's also a way to see DFTs as a special kind of change-of-basis of a finite-dimensional vector space.2011-03-14
  • 0
    I would like the derivation of the DFT as an approximation to the Fourier Series. Thanks2011-03-18

1 Answers 1