; ۗ?c@sdZddddddddd d d d d dddddddddgZeiidddZdZdddddddddg ZdS(s Discrete Fourier Transform algorithms ===================================== Fast Fourier Transforms: fft --- FFT of arbitrary type periodic sequences ifft --- Inverse of fft fftn --- Multi-dimensional FFT ifftn --- Inverse of fftn fft2 --- Two-dimensional FFT ifft2 --- Inverse of fft2 rfft --- FFT of real periodic sequences irfft --- Inverse of rfft Differential and pseudo-differential operators: diff --- Differentiation and integration of periodic sequences tilbert --- Tilbert transform: cs_diff(x,h,h) itilbert --- Inverse Tilbert transform: sc_diff(x,h,h) hilbert --- Hilbert transform: cs_diff(x,inf,inf) ihilbert --- Inverse Hilbert transform: sc_diff(x,inf,inf) cs_diff --- cosh/sinh pseudo-derivative of periodic sequences sc_diff --- sinh/cosh pseudo-derivative of periodic sequences ss_diff --- sinh/sinh pseudo-derivative of periodic sequences cc_diff --- cosh/cosh pseudo-derivative of periodic sequences shift --- Shift periodic sequences Helper functions: fftshift --- Shift zero-frequency component to center of spectrum ifftshift --- Inverse of freqshift dftfreq --- DFT sample frequencies rfftfreq --- DFT sample frequencies (specific to rfft,irfft) Extension modules: fftpack --- Provides functions zfft, drfft, zrfft, zfftnd, destroy_*_cache convolve --- Provides functions convolve, convolve_z, init_convolution_kernel, destroy_convolve_cache sfftsifftsfftnsifftnsrfftsirfftsfft2sifft2sdiffstilbertsitilbertshilbertsihilbertssc_diffscs_diffscc_diffsss_diffsshiftsfftshifts ifftshiftsfftfreqsrfftfreqs iiN(s__doc__s__all__slstripssplits __doc_title__spostpone_importsglobal_symbols(s __doc_title__spostpone_imports__all__sglobal_symbols((sY/afs/sipb.mit.edu/project/python-lib/src/SciPy_complete-0.3.2/Lib/fftpack/info_fftpack.pys?+sH