[Phys-l] Fourier transform : showing the guts via spreadsheet

[John Denker <jsd@av8n.com>]

Hi --

I added a new section to my discussion of Fourier transforms
  http://www.av8n.com/physics/fourier-refined.htm#sec-spreadsheet

This discusses some spreadsheets
  http://www.av8n.com/physics/fourier-demo.xls
  http://www.av8n.com/physics/fourier-demo-hi.xls
that implement a Fourier transform directly -- not via FFT,
not via any canned transformation routine -- so you can see
all the steps involved.  

There is value in seeing all the steps ... and there are 
many students who are willing to work with spreadsheets 
but are have a phobia about traditional computer languages.

Also: an older part of this document talks about the 
oft-underappreciated need to increase the resolution of
Fourier transforms.
  http://www.av8n.com/physics/fourier-refined.htm#sec-resolution




Extra credit question:
  What do you call a Crax rubra from Willemstad?