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    %% Symmetric Difference of Rows in Two Matrices  

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% Define two matrices with rows in common. 
A = [7 8 9; 7 7 1; 7 7 1; 1 2 3; 4 5 6];
B = [1 2 3; 4 5 6; 7 7 2];  

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% Find the rows of |A| and |B| that are not in their intersection as well
% as the index vectors |ia| and |ib|. 
[C,ia,ib] = setxor(A,B,'rows') 

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% |C| is a sorted combination of the rows of |A(ia,:)| and |B(ib,:)|.