How to write a cross signal function and apply it to the signals?

xDataA = linspace(0,4*pi,1024); % create signal
yDataA = cos(xDataA); % array A
xDataB = linspace(0,4*pi,1024); % create signal
yDataB = sin(xDataB); % array B
p = yDataA.*yDataB ; % product of array A and B

r = xcorr(yDataA,yDataB);
plot (r);

Is this how it is done?

Answer 1

[Star Strider]

This looks like homework.

See the documentation on the xcorr (link) function. That will either solve your problem or get you started on writing your own function.