[R] FFT Normalization Documentation

[Hiroyuki Kawakatsu]

On 2015-02-05 Martin Maechler wrote:

[...]
> Both a definition of the DFT (in LaTeX or directly as \deqn{}{}) which
> matches *our* fft(), and an extended commented example (ca 20 lines,
> rather than ca 100 lines!) would be welcome additions.
[...]

Here is a previous attempt:

https://stat.ethz.ch/pipermail/r-devel/2008-June/049807.html

It fell on deaf ears so someone could improve on it. I still
google this page when I have to remind myself what fft()
is doing.

h.
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| Hiroyuki Kawakatsu
| Business School, Dublin City University
| Dublin 9, Ireland. Tel +353 (0)1 700 7496