I have one column matrix with N array, and I want to check whether any two elements are equal or not? And if two or more numbers are equal, how to find their position on the array? How can I do that by coding?
z=randi(5,10,1); % forms a sample array; replace it with an array of your interest
k1=find(z(indx(k0+1:end))>z(indx(k0)),1); % if you do not need the exact coincidence but a tolerant closeness, change it to "k1=find(z(indx(k0+1:end))-z(indx(k0))>epss,1)" with the epss being the satisfying tolerance