ifft

caput.algorithms.fft.fftw.FFTW.ifft(x)

Perform a backward FFT.

When performing the backward real -> real IFFT, the input array is destroyed.

Parameters:

xcomplex array_like

Input array, must match the dtype specified at creation.

Returns:

ifftcomplex ndarray

IDFT of the input array over specified axes.

Raises:

AttributeError

If the backward FFT is not initialized.