bundles / scipy latest / scipy / fft
module
scipy.fft
source: /scipy/fft/__init__.py :0
Submodules
Summary
No Docstrings
Additional content
Discrete Fourier transforms (scipy.fft)
Fast Fourier Transforms (FFTs)
.. autosummary:: :toctree:generated/ fft - Fast (discrete) Fourier Transform (FFT) ifft - Inverse FFT fft2 - 2-D FFT ifft2 - 2-D inverse FFT fftn - N-D FFT ifftn - N-D inverse FFT rfft - FFT of strictly real-valued sequence irfft - Inverse of rfft rfft2 - 2-D FFT of real sequence irfft2 - Inverse of rfft2 rfftn - N-D FFT of real sequence irfftn - Inverse of rfftn hfft - FFT of a Hermitian sequence (real spectrum) ihfft - Inverse of hfft hfft2 - 2-D FFT of a Hermitian sequence ihfft2 - Inverse of hfft2 hfftn - N-D FFT of a Hermitian sequence ihfftn - Inverse of hfftn
Discrete Sin and Cosine Transforms (DST and DCT)
.. autosummary:: :toctree:generated/ dct - Discrete cosine transform idct - Inverse discrete cosine transform dctn - N-D Discrete cosine transform idctn - N-D Inverse discrete cosine transform dst - Discrete sine transform idst - Inverse discrete sine transform dstn - N-D Discrete sine transform idstn - N-D Inverse discrete sine transform
Fast Hankel Transforms
.. autosummary:: :toctree:generated/ fht - Fast Hankel transform ifht - Inverse of fht
Helper functions
.. autosummary:: :toctree:generated/ fftshift - Shift the zero-frequency component to the center of the spectrum ifftshift - The inverse of `fftshift` fftfreq - Return the Discrete Fourier Transform sample frequencies rfftfreq - DFT sample frequencies (for usage with rfft, irfft) fhtoffset - Compute an optimal offset for the Fast Hankel Transform next_fast_len - Find the optimal length to zero-pad an FFT for speed prev_fast_len - Find the maximum slice length that results in a fast FFT set_workers - Context manager to set default number of workers get_workers - Get the current default number of workers
Backend control
.. autosummary:: :toctree:generated/ set_backend - Context manager to set the backend within a fixed scope skip_backend - Context manager to skip a backend within a fixed scope set_global_backend - Sets the global fft backend register_backend - Register a backend for permanent use
Aliases
-
scipy.fft