Legacy discrete Fourier transforms (scipy.fftpack
)#
Legacy
This submodule is considered legacy and will no longer receive updates. This could also mean it will be removed in future SciPy versions. New code should use scipy.fft
.
Fast Fourier Transforms (FFTs)#
|
Return discrete Fourier transform of real or complex sequence. |
|
Return discrete inverse Fourier transform of real or complex sequence. |
|
2-D discrete Fourier transform. |
|
2-D discrete inverse Fourier transform of real or complex sequence. |
|
Return multidimensional discrete Fourier transform. |
|
Return inverse multidimensional discrete Fourier transform. |
|
Discrete Fourier transform of a real sequence. |
|
Return inverse discrete Fourier transform of real sequence x. |
|
Return the Discrete Cosine Transform of arbitrary type sequence x. |
|
Return the Inverse Discrete Cosine Transform of an arbitrary type sequence. |
|
Return multidimensional Discrete Cosine Transform along the specified axes. |
|
Return multidimensional Discrete Cosine Transform along the specified axes. |
|
Return the Discrete Sine Transform of arbitrary type sequence x. |
|
Return the Inverse Discrete Sine Transform of an arbitrary type sequence. |
|
Return multidimensional Discrete Sine Transform along the specified axes. |
|
Return multidimensional Discrete Sine Transform along the specified axes. |
Differential and pseudo-differential operators#
|
Return kth derivative (or integral) of a periodic sequence x. |
|
Return h-Tilbert transform of a periodic sequence x. |
|
Return inverse h-Tilbert transform of a periodic sequence x. |
|
Return Hilbert transform of a periodic sequence x. |
|
Return inverse Hilbert transform of a periodic sequence x. |
|
Return (a,b)-cosh/sinh pseudo-derivative of a periodic sequence. |
|
Return (a,b)-sinh/cosh pseudo-derivative of a periodic sequence x. |
|
Return (a,b)-sinh/sinh pseudo-derivative of a periodic sequence x. |
|
Return (a,b)-cosh/cosh pseudo-derivative of a periodic sequence. |
|
Shift periodic sequence x by a: y(u) = x(u+a). |
Helper functions#
|
Shift the zero-frequency component to the center of the spectrum. |
|
The inverse of |
|
Return the Discrete Fourier Transform sample frequencies. |
|
DFT sample frequencies (for usage with rfft, irfft). |
|
Find the next fast size of input data to |
Note that fftshift
, ifftshift
and fftfreq
are numpy functions
exposed by fftpack
; importing them from numpy
should be preferred.
Convolutions (scipy.fftpack.convolve
)#
|
Wrapper for |
|
Wrapper for |
Wrapper for |
|