[Help-gsl] Re: Help-gsl Digest, Vol 13, Issue 14

[Yuriy Kudriavtsev]

В сообщении от Четверг 25 Ноябрь 2004 19:58 address@hidden 
написал(a):
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>    1. Re: gsl_vector_complex  to packed array (Brian Gough)
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>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 24 Nov 2004 18:37:24 +0000
> From: Brian Gough <address@hidden>
> Subject: Re: [Help-gsl] gsl_vector_complex  to packed array
> To: Leonardo Didier Coelho <address@hidden>
> Cc: address@hidden
> Message-ID: <address@hidden>
> Content-Type: text/plain; charset=us-ascii
>
> Leonardo Didier Coelho writes:
>  > I'm writing a simulation program in C++ and I have a
>  > signal which is a *gsl_vector_complex type. I want to
>  > get the FFT of this signal. Is there any function to
>  > convert  *gsl_vector_complex into packed array? How
>  > should I perform the FFT?
>
> Hello,
> gsl_complex_packed_array is equivalent to double *
> I've added the following paragraph to the manual to explain it better:
>
>   ======================================================================
>      To perform an FFT on a vector argument `gsl_complex_vector * v' use
>   the following definitions or their equivalents in the functions
>   described below,
>
>        gsl_complex_packed_array data = v->data;
>        size_t stride = v->stride;
>        size_t n = v->size;
>
>   ======================================================================