PSN-L Email List Message

Subject: Re: Digest from 07/17/2007 00:01:20
From: Bobhelenmcclure@.......
Date: Sat, 21 Jul 2007 11:04:26 EDT


Hi Randall,
 
  I tried out your QuickBasic program using the compiled program and  running 
from the source code. Changing the file name is not necessary, so long  as 
you enter the complete name.
 
  You neglected to tell users what keys to use to re-run or terminate  the 
program. 
 
Cheers,
 
Bob
 
~~~~~~~~~~Original Message~~~~~~~~~~~
Subject: Re: Digest from 07/17/2007 00:01:20
From: Randall Peters  PETERS_RD@..........
Date: Thu, 19 Jul 2007 11:52:05 -0400
 
Because of  the recent interest in FFT's, I have posted some files on  my 
webpage at
_http://physics.mercer.edu/hpage/psn/psn.html_ 
(http://physics.mercer.edu/hpage/psn/psn.html) 
The pdf's should help those of you who have been wondering how the Fourier  
transform works and why the Cooley-Tukey form (Fast version)
is SO MUCH  better than the discrete FT (for which there is much needless, 
repetitive  calculations).
The executable can be downloaded (I promise that it is  safe to use) and some 
data files have been posted to the site so that you can  run test cases.  
test and test 2 are pure sine signals, one with a period  of 17 s and the other 
1000 s.  The 0704 file is a record of the Solomon  Islands EQ recorded wtih 
Larry Cochrane's VolksMeter.  Before you can use  the files you must rename your 
saved version (*.txt) to *.dat.  This suffix  must be typed in along with the 
filename when you are prompted for the input  file.



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Hi Randall,
 
  I tried out your QuickBasic program using the compiled program a= nd=20 running from the source code. Changing the file name is not necessary, so lo= ng=20 as you enter the complete name.
 
  You neglected to tell users what keys to use to re-run or termin= ate=20 the program. 
 
Cheers,
 
Bob
 
~~~~~~~~~~Original Message~~~~~~~~~~~
Subject: Re: Digest from 07/17/2007 00:01:20
From: Randall Peters=20 PETERS_RD@..........
Date: Thu, 19 Jul 2007 11:52:05 -0400
 
Because of  the recent interest in FFT's, I have posted some files= on=20 my webpage at
http://physics.mercer.= edu/hpage/psn/psn.html
 =20 The pdf's should help those of you who have been wondering how the Fourier=20 transform works and why the Cooley-Tukey form (Fast version)
is SO MUCH=20 better than the discrete FT (for which there is much needless, repetitive=20 calculations).
  The executable can be downloaded (I promise that it= is=20 safe to use) and some data files have been posted to the site so that you ca= n=20 run test cases.  test and test 2 are pure sine signals, one with a peri= od=20 of 17 s and the other 1000 s.  The 0704 file is a record of the Solomon= =20 Islands EQ recorded wtih Larry Cochrane's VolksMeter.  Before you can u= se=20 the files you must rename your saved version (*.txt) to *.dat.  This su= ffix=20 must be typed in along with the filename when you are prompted for the input= =20 file.




Get a sneak p= eek of the all-new AOL.com.
=

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