Find missing elements from table

Hi everybody,

I have a vector A = [1 ;2;3;4;5;6;7;8] and a Matrix B=[1 2; 1 8 ; 2 8] and I want to find the missing elements of A from B. How can I solve this?

[Ameer Hamza]

Which elements of A are missing? Give a proper example that which elements and how do you want to fill it from B.

[DIMITRA GIANNOPOULOU]

Hi, I want to exclude from A matrix the elements [3 4 5 6 7] which are the elements that are not contained in the B matrix.

Answer 1

[Jan]

A = [1;2;3;4;5;6;7;8]
B = [1 2; 1 8 ; 2 8]
C = intersect(A, B)

Or if you want to keep repeated values:

C = A(ismember(A, B))