MATLAB: How to return a row from a 2d matrix

intersectrow

If i have a matrix like this A =
    52    53    17    10     8
    16    12     7    14    23
    24    90     1    19    36
     4     3    21    11    18
and 
B =  30    52    7    10     80 
     5     20    22    7    43  
     4     2     1     9     6 
and i want to get the intersection between them and whenever there is an
intersection, i want it to print the row that contains the intersected element
in A.
Like here for example, 52 is in both matrices, so one of the outputs should be:
52    53    17    10     8
My code:
A= [52 53 17 10 8; 16 12 7 14 23; 24 90 1 19 36; 4 3 21 11 18]
B= [30 52 7 10 80;5 20 22 7 43; 4 2 1 9 6]
r = intersect(A,B); %The values of intersection between the two matrices
for i = 1 : length(r)
m = find(A == r(i)); %This gets the indices where they intersect
end

Best Answer

A= [52 53 17 10 8; 16 12 7 14 23; 24 90 1 19 36; 4 3 21 11 18]
B= [30 52 7 10 80;5 20 22 7 43; 4 2 1 9 6]  
idx=ismember(A,B)
C=A(idx)
indices=find(idx)
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