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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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