How to compare two matrix?

Suppose,

A=[4 5;4 19;5 7;4 5];

B=[4 5]

if B in A

calculation1;

end

else

calculation2;

end

How Can I code this?

Answer 1

[DGM]

It's not exactly clear what the intended logic is, but this is a simple membership test

A=[4 5; 4 19; 5 7; 4 5];
B=[4 5];

if ismember(B,A,'rows')
    % calculation 1;
    disp('B is a member of A')
else
    % calculation 2;
    disp('B is NOT a member of A')
end

B is a member of A

[Md Jahid Hasan Sagor]

Thank you so much for your help. It works.

Answer 2

[Juan Ruiz Osorio]

I think this works if you want to do a calculation for each member of B.

A=[4 5;4 19;5 7;4 5];
B=[4 5];

for i=1:size(B,2)
    
    if ismember(B(i),A)
        calculation1;
    else
        calculation2;
    end

end