How to check if any component of a vector/matrix is matching with any of the component of another vector?

% Let say I have two vector A and B, 
A = [2 3 4 1 4 9 10];
B = [2 9];
if ismember(A,B)
    C = 2*A;
else 
    C = 0*A;
end

It is giving me zero vector but it should give me 2A. I know that I can use any(ismember(A,B) to get desired result but let say A is matrix (instead of vector) and I want to check if any of the component in A matrix is matching with any component of B vector then "If" condition should satisfy. I dont want to use any(any(...)). Is there any direct way to do that? Thanks.

Answer 1

[Dyuman Joshi]

%modified A to be a matrix
A = [2 3 4; 1 4 9; 10 5 6];
B = [2 9];

%You can use intersect to find if there are any
%common elements
any(intersect(B,A))

ans = logical
   1

%or change the order of the input
any(ismember(B,A))

ans = logical
   1

[SALMAN KHAN]

Thank alot!