get the value of element from matrix

Let's say: I have matrix A, B

A=[1  1  200; 2 2 2;9 9 9; 5 5 5; 3   3   355];%matrix 5x3
B=[9 9; 1 1; 3 3]%matrix 3x2

How can I call the result matrix somehow the value of two first column in matrix A is the same as in matrix B?

result=[9 9 9; 1  1  200; 3  3   355];

Answer 1

[Stephen23]

Simply use ismember and basic MATLAB indexing:

>> [X,Y] = ismember(B,A(:,1:2),'rows');
>> Z = A(Y(X),:)
Z =
     9     9     9
     1     1   200
     3     3   355