numpy.fft.ifftn()

numpy.fft.ifftn

numpy.fft.ifftn(a, s=None, axes=None, norm=None) [source]

Compute the N-dimensional inverse discrete Fourier Transform.

This function computes the inverse of the N-dimensional discrete Fourier Transform over any number of axes in an M-dimensional array by means of the Fast Fourier Transform (FFT). In other words, ifftn(fftn(a)) == a to within numerical accuracy. For a description of the definitions and conventions used, see numpy.fft.

The input, analogously to 登录查看完整内容