match row column of matrix

If I have one matrix

1  23
2  54
3 76
4 67
5 23

The other matrix

4
3

If there is way to get

If Iwant a matrix

4 67
3 76

Answer 1

[Guillaume]

A = [1  23
     2  54
     3 76
     4 67
     5 23];
 B = [4;3];
 
 result = A(ismember(A(:, 1), B), :)  %keep the rows of A whose 1st column is a member of B