?? fft_grids.h
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/*************************************************************************** ************************************************************************** Spherical Harmonic Transform Kit 2.7 Contact: Peter Kostelec geelong@cs.dartmouth.edu Copyright 1997-2003 Sean Moore, Dennis Healy, Dan Rockmore, Peter Kostelec Copyright 2004 Peter Kostelec, Dan Rockmore SpharmonicKit 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. SpharmonicKit 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., 675 Mass Ave, Cambridge, MA 02139, USA. Commercial use is absolutely prohibited. See the accompanying LICENSE file for details. ************************************************************************ ************************************************************************/#ifndef _FFT_GRIDS_H#define _FFT_GRIDS_H#ifndef FFTPACKextern void grid_fourier( double * , double * , double * , double * , int , double * );extern void grid_invfourier( double * , double * , double * , double * , int , double * );#else /* if FFTPACK *is* defined */extern double *precomp_fft( int );extern void grid_fourier_FFTPACK( double * , int , double * );extern void grid_invfourier_FFTPACK( double * , int , double * );#endif /* FFTPACK */#endif /* _FFT_GRIDS_H */
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