www.gusucode.com > datafun 工具箱matlab源码程序 > datafun/ifft.m
%IFFT Inverse discrete Fourier transform. % IFFT(X) is the inverse discrete Fourier transform of X. % % IFFT(X,N) is the N-point inverse transform. % % IFFT(X,[],DIM) or IFFT(X,N,DIM) is the inverse discrete Fourier % transform of X across the dimension DIM. % % IFFT(..., 'symmetric') causes IFFT to treat X as conjugate symmetric % along the active dimension. This option is useful when X is not exactly % conjugate symmetric merely because of round-off error. See the % reference page for the specific mathematical definition of this % symmetry. % % IFFT(..., 'nonsymmetric') causes IFFT to make no assumptions about the % symmetry of X. % % See also FFT, FFT2, FFTN, FFTSHIFT, FFTW, IFFT2, IFFTN. % Copyright 1984-2005 The MathWorks, Inc.