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author | Brijeshcr | 2017-07-06 15:48:47 +0530 |
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committer | GitHub | 2017-07-06 15:48:47 +0530 |
commit | c600ebcb67961fe6007ba41fd5ad987da3af7f6e (patch) | |
tree | 26fc9679644561759e8a2c4080059d30b70a3105 /2.3-1/thirdparty/includes/GSL/gsl/gsl_fft_real.h | |
parent | a7eeecce4c7c39ea52a2d434815c574a2c42730d (diff) | |
download | Scilab2C-c600ebcb67961fe6007ba41fd5ad987da3af7f6e.tar.gz Scilab2C-c600ebcb67961fe6007ba41fd5ad987da3af7f6e.tar.bz2 Scilab2C-c600ebcb67961fe6007ba41fd5ad987da3af7f6e.zip |
Revert "LinearAlgebra Function Added"
Diffstat (limited to '2.3-1/thirdparty/includes/GSL/gsl/gsl_fft_real.h')
-rw-r--r-- | 2.3-1/thirdparty/includes/GSL/gsl/gsl_fft_real.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/2.3-1/thirdparty/includes/GSL/gsl/gsl_fft_real.h b/2.3-1/thirdparty/includes/GSL/gsl/gsl_fft_real.h new file mode 100644 index 00000000..e07a6042 --- /dev/null +++ b/2.3-1/thirdparty/includes/GSL/gsl/gsl_fft_real.h @@ -0,0 +1,80 @@ +/* fft/gsl_fft_real.h + * + * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2007 Brian Gough + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or (at + * your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef __GSL_FFT_REAL_H__ +#define __GSL_FFT_REAL_H__ + +#include <stddef.h> + +#include <gsl/gsl_math.h> +#include <gsl/gsl_complex.h> +#include <gsl/gsl_fft.h> + +#undef __BEGIN_DECLS +#undef __END_DECLS +#ifdef __cplusplus +# define __BEGIN_DECLS extern "C" { +# define __END_DECLS } +#else +# define __BEGIN_DECLS /* empty */ +# define __END_DECLS /* empty */ +#endif + +__BEGIN_DECLS + +int gsl_fft_real_radix2_transform (double data[], const size_t stride, const size_t n) ; + +typedef struct + { + size_t n; + size_t nf; + size_t factor[64]; + gsl_complex *twiddle[64]; + gsl_complex *trig; + } +gsl_fft_real_wavetable; + +typedef struct + { + size_t n; + double *scratch; + } +gsl_fft_real_workspace; + +gsl_fft_real_wavetable * gsl_fft_real_wavetable_alloc (size_t n); + +void gsl_fft_real_wavetable_free (gsl_fft_real_wavetable * wavetable); + +gsl_fft_real_workspace * gsl_fft_real_workspace_alloc (size_t n); + +void gsl_fft_real_workspace_free (gsl_fft_real_workspace * workspace); + + +int gsl_fft_real_transform (double data[], const size_t stride, const size_t n, + const gsl_fft_real_wavetable * wavetable, + gsl_fft_real_workspace * work); + + +int gsl_fft_real_unpack (const double real_coefficient[], + double complex_coefficient[], + const size_t stride, const size_t n); + +__END_DECLS + +#endif /* __GSL_FFT_REAL_H__ */ |