scipy.fftpack.ifftn

scipy.fftpack.ifftn(x, shape=None, axes=None, overwrite_x=0)

ifftn(x, s=None, axes=None, overwrite_x=0) -> y

Return inverse multi-dimensional discrete Fourier transform of arbitrary type sequence x.

The returned array contains

y[j_1,..,j_d] = 1/p * sum[k_1=0..n_1-1, ..., k_d=0..n_d-1]

x[k_1,..,k_d] * prod[i=1..d] exp(sqrt(-1)*2*pi/n_i * j_i * k_i)

where d = len(x.shape), n = x.shape, and p = prod[i=1..d] n_i.

Optional input: see fftn.__doc__