Re: Piping commands from C

[Jean Bréfort <jean brefort normalesup org>]

Le vendredi 09 octobre 2009 à 13:11 -0400, Gavin Buxton a écrit :
> I'm trying to make a computer code user friendly for some students to
> play around with and was wondering if I could get gnumeric to open and
> do some FFT directly from the c code. I'm already piping commands to
> gnuplot for pretty pictures, and was hoping for something similar....
> google search failed me so I was hoping you guys might be able to
> help!
You don't even need to use gnumeric. goffice has an appropriate function
for this purpose:

void go_fourier_fft (go_complex const *in, int n, int skip, go_complex **fourier, gboolean inverse);

and also a long double version. The skip parameter is used for recursivity and shoud be 1 on input.

Regards,
Jean