What are these commands in Matlab? Can any one explain them with examples. I searched them but didn't find any help

SQUEEZE Remove singleton dimensions. B = SQUEEZE(A) returns an array B with the same elements as A but with all the singleton dimensions removed. A singleton is a dimension such that size(A,dim)==1. 2-D arrays are unaffected by squeeze so that row vectors remain rows. For example, squeeze(rand(2,1,3)) is 2-by-3. See also SHIFTDIM. Documentation for squeeze doc squeeze Other functions named squeeze distributed/squeeze dlarray/squeeze tall/squeeze

HANNING Hanning window. HANNING(N) returns the N-point symmetric Hanning window in a column vector. Note that the first and last zero-weighted window samples are not included. HANNING(N,'symmetric') returns the same result as HANNING(N). HANNING(N,'periodic') returns the N-point periodic Hanning window, and includes the first zero-weighted window sample. NOTE: Use the HANN function to get a Hanning window which has the first and last zero-weighted samples. See also BARTLETT, BLACKMAN, BOXCAR, CHEBWIN, HAMMING, HANN, KAISER and TRIANG.

FFTSHIFT Shift zero-frequency component to center of spectrum. For vectors, FFTSHIFT(X) swaps the left and right halves of X. For matrices, FFTSHIFT(X) swaps the first and third quadrants and the second and fourth quadrants. For N-D arrays, FFTSHIFT(X) swaps "half-spaces" of X along each dimension. FFTSHIFT(X,DIM) applies the FFTSHIFT operation along the dimension DIM. FFTSHIFT is useful for visualizing the Fourier transform with the zero-frequency component in the middle of the spectrum. Class support for input X: float: double, single See also IFFTSHIFT, FFT, FFT2, FFTN, CIRCSHIFT. Documentation for fftshift doc fftshift Other functions named fftshift codistributed/fftshift