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Re: [Help-gsl] Complex vectors

From: Alessandro Toso
Subject: Re: [Help-gsl] Complex vectors
Date: Mon, 03 Apr 2006 13:15:21 -0400


in fact type gsl_complex_vector doesn't exist in any header. I think you
should use gsl_complex_packed_array that i simply a double array of
doubled dimension with respect to your data array with the real part
followed by the imaginary:

complex[0] = a0 + j b0
complex[1] = a1 + j b1
complex[N] = aN + j bN

gsl_complex_packed_array data;

data[0] = a0;
data[1] = b0;
data[2] = a1;
data[3] = b1;
data[2N-1] = aN;
data[2N] = bN;



0On Mon, 2006-04-03 at 09:39 -0500, Cory Burkhardt wrote:
> I am attempting to perform FFT operations on complex vectors.  In the FFT
> section of the documentation, it makes a comment about using a
> gsl_complex_vector type, but this type is not described anywhere in the
> documentation.  In the section on Vectors, the gsl_vector's stride member is
> described, but nowhere does it describe how to modify the size and stride
> members.  If I want to create a complex vector with 5 complex numbers, would
> I create a gsl_vector of size 10 and manually modify the stride to be 2?
> Cory Burkhardt
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