GSL Fourier Transform source?

[TheDestroyer]

Hello guys,

I'm looking for GSL's source of the function gsl_fft_real_transform() (the complex version is also OK). I want to write my own FFT which supports any length of data points, and GSL has done some efforts on that that I wanna have a look at to learn.

Any efforts are highly appreciated.

Cheers.

[naraku9333]

Maybe http://www.gnu.org/software/gsl/

[TheDestroyer]

Thank you for the extremely detailed answer you provided. With all due respect, I'm not unable to go to GSL's website and search for the code; but the code is not available there, and I even downloaded the source package and I found nothing there but the call functions.

Any one knows where I can find the source code of that?

Thanks.

[naraku9333]

TheDestroyer wrote:

Thank you for the extremely detailed answer you provided. With all due respect, I'm not unable to go to GSL's website and search for the code; but the code is not available there, and I even downloaded the source package and I found nothing there but the call functions.

Any one knows where I can find the source code of that?

Thanks.

The source code is available on the page I linked. It took some digging and figuring out the macros but it looks like it is in

gsl-1.9/fft/real_main.c

[TheDestroyer]

Thanks man. I have problems dealing with macros, that's why I couldn't find it.