%% Conjugate Symmetric Matrix
% For nearly conjugate symmetric matrices, you can compute the inverse Fourier transform faster by specifying the 'symmetric' option, which also ensures that the output is real.
% Compute the 2-D inverse Fourier transform of a nearly conjugate symmetric matrix.

Y = [3+1e-15*i 5;
     5 3];
X = ifft2(Y,'symmetric')

% Copyright 2012 The MathWorks, Inc.