ifftshift(x, axes=None)

This docstring was copied from numpy.fft.ifftshift.

Some inconsistencies with the Dask version may exist.

Parameters

x : array_like

Input array.

axes : int or shape tuple, optional

Axes over which to calculate. Defaults to None, which shifts all axes.

Returns

y : ndarray

The shifted array.

The inverse of fftshift . Although identical for even-length x, the functions differ by one sample for odd-length x.

See Also

fftshift

Shift zero-frequency component to the center of the spectrum.

Examples

This example is valid syntax, but we were not able to check execution

>>> freqs = np.fft.fftfreq(9, d=1./9).reshape(3, 3)  # doctest: +SKIP
... freqs  # doctest: +SKIP
array([[ 0.,  1.,  2.],
       [ 3.,  4., -4.],
       [-3., -2., -1.]])

This example is valid syntax, but we were not able to check execution

>>> np.fft.ifftshift(np.fft.fftshift(freqs))  # doctest: +SKIP
array([[ 0.,  1.,  2.],
       [ 3.,  4., -4.],
       [-3., -2., -1.]])

See :

Back References

The following pages refer to to this document either explicitly or contain code examples using this.

dask.array.fft.fftshift

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