Re: Downloading & Installing FFTW in Octave

[Kai Torben Ohlhus]

On 4/13/21 9:01 AM, Samuel Doughty wrote:
> I am working on a Win10 HP Z210 computer with 64 bit operating system. I 
> have the document "A Short Tutorial on the Basic Usage of the Package 
> FFTW3" by Figueras. Section 1.1 of that document is titled "Getting and 
> Installing FFTW3."
>
> As directed, I went to the site ftp.fftw.org <http://ftp.fftw.org> where 
> I was offered the opportunity to download the file for Windows 10 which 
> I did. My computer indicates that a 4.0 MB file was downloaded, 
> fftw-3.3.9.tar.gz.
>
> The next step says to decompress this file, but I do not see any option 
> to do that. What do I need to do at this point? Any help would be much 
> appreciated. Thanks.

Octave for MS Windows already provides a compiled FFTW library [1]

<Octave Installation Dir>\mingw64\lib\libfftw3.dll (and others)

If you plan to use it in conjunction with Octave, using that one seems 
to be a reasonable choice.

In case you need a more special setup, please consult the FFTW community 
[2].

HTH,
Kai

[1] https://hg.octave.org/mxe-octave/file/tip/src/fftw.mk
[2] http://www.fftw.org/faq/section2.html#runOnWindows