[PD] fft beginner question

Frank Barknecht fbar at footils.org
Tue Nov 20 17:33:44 CET 2007


Hallo,
Chuckk Hubbard hat gesagt: // Chuckk Hubbard wrote:

> I still don't exactly understand why one couldn't just use (x, y)
> vectors; 

You *are* just using (x,y) rsp. (angle, radius) vectors. You can
completely ignore the meaning of i as sqrt(-1) and just view "i" as
the funny name of the second axis in a 2d-coordinate system. Instead
of calling one axis the x-axis and the other the y-axis you call one
axis the real and the other the imaginary axis. That's all there is to
it. It's nothing complex (pun intended).

Ciao
-- 
 Frank Barknecht                                     _ ______footils.org__




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