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# scipy.fftpack.ifftshift

`scipy.fftpack.``ifftshift`(x, axes=None)

  The inverse of fftshift.

  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.

  See also

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

  Examples

      >>> freqs = np.fft.fftfreq(9, d=1./9).reshape(3, 3)
      >>> freqs
      array([[ 0.,  1.,  2.],
             [ 3.,  4., -4.],
             [-3., -2., -1.]])
      >>> np.fft.ifftshift(np.fft.fftshift(freqs))
      array([[ 0.,  1.,  2.],
             [ 3.,  4., -4.],
             [-3., -2., -1.]])

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