/usr/include/harminv.h is in libharminv-dev 1.3.1-10.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 | /* Copyright (C) 2006 Massachusetts Institute of Technology.
*
* 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 2 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef HARMINV_H
#define HARMINV_H
/**************************************************************************/
#if defined(__cplusplus)
# include <complex>
extern "C" {
typedef std::complex<double> harminv_complex;
#elif defined(_Complex_I) && defined(complex) && defined(I)
/* C99 <complex.h> header was included before harminv.h */
typedef double _Complex harminv_complex;
#else
typedef double harminv_complex[2];
#endif
typedef struct harminv_data_struct *harminv_data;
/**************************************************************************/
typedef int (*harminv_mode_ok_func)(harminv_data d, int k, void *);
extern harminv_data harminv_data_create(int n,
const harminv_complex *signal,
double fmin, double fmax, int nf);
extern void harminv_data_destroy(harminv_data d);
extern void harminv_solve(harminv_data d);
extern int harminv_get_num_freqs(harminv_data d);
extern double harminv_get_freq(harminv_data d, int k);
extern double harminv_get_Q(harminv_data d, int k);
extern double harminv_get_decay(harminv_data d, int k);
extern harminv_complex harminv_get_omega(harminv_data d, int k);
extern harminv_complex harminv_get_amplitude(harminv_data d, int k);
extern double harminv_get_freq_error(harminv_data d, int k);
/* the following routines are undocumented and not recommended */
extern void harminv_solve_once(harminv_data d);
extern void harminv_solve_again(harminv_data d,
harminv_mode_ok_func ok, void *ok_d);
extern void harminv_solve_ok_modes(harminv_data d,
harminv_mode_ok_func ok, void *ok_d);
extern double *harminv_compute_freq_errors(harminv_data d);
extern harminv_complex *harminv_compute_amplitudes(harminv_data d);
/**************************************************************************/
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* HARMINV_H */
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