Why autocorr(x) and xcorr(x,x) give different results?

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JOB
JOB 2019-9-13
编辑： JOB 2019-9-14
I was trying to find the autocorrelation of a matrix 'x' using autocorr, however cross correlation function (xcorr) is giving me the expected results. The code used is given below, what could be the reason? is there a method by which they can be made equal?
x=randi([0 1],1,64); %Random values 0 & 1
aut_x=autocorr(x); % autocorrelation function of x
crs_x=xcorr(x,x); % cross correlation function of x with itself

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KALYAN ACHARJYA
KALYAN ACHARJYA 2019-9-13
Please read here (Difference between autocorr & xcorr)

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