Discrete Fourier transforms (scipy.fftpack)

Fast Fourier Transforms (FFTs)

Differential and pseudo-differential operators

Helper functions

Note that fftshift, ifftshift and fftfreq are numpy functions exposed by fftpack; importing them from numpy should be preferred.

Convolutions (scipy.fftpack.convolve)

convolve(x,omega,[swap_real_imag,overwrite_x])	Wrapper for convolve.
convolve_z(x,omega_real,omega_imag,[overwrite_x])	Wrapper for convolve_z.
init_convolution_kernel(...)	Wrapper for init_convolution_kernel.
destroy_convolve_cache()	Wrapper for destroy_convolve_cache.