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Re: interesting FFT benchmarking!
From: |
John W. Eaton |
Subject: |
Re: interesting FFT benchmarking! |
Date: |
Tue, 29 Jul 2003 12:49:04 -0500 |
On 29-Jul-2003, address@hidden <address@hidden> wrote:
| It does have a set of specialized functions. There is a header file
| called rfftw.h referring to them. Maybe we could create a rfft function
| in octave that reads a real vector and returns only the positive
| half-plane, like it's done on the library. I'll study how to do it...
| :)
You might also look at how it is done in the newer FFTW version 3,
which doesn't have rfftw.h. According to the manual:
Unlike FFTW 2, there are no separate header files for real and
complex transforms (or even for different precisions) in FFTW 3; all
interfaces are defined in the `<fftw3.h>' header file.
It would probably be good to update Octave so that it uses the newer
version of the library.
jwe
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