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fft.h
00001 #ifndef HAVE_FFT_H__ 00002 #define HAVE_FFT_H__ 00003 00004 00005 00006 00007 /* 00008 * NOTE: ldn is the base 2 logarithm of the length 00009 * of the complex data array 00010 * i.e. ldn=10 means that there are 2^10 = 1024 elements 00011 * 00012 */ 00013 00014 void fft(double *fr, double *fi, int ldn, int is); 00015 00018 00019 void fft_f(float *fr, float *fi, int ldn, int is); 00020 00021 void real_fft(double *fr, int ldn); 00022 00023 void test(); 00024 void help(); 00025 00026 #endif // !defined HAVE_FFT_H__
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