finding values common to 3 different single-column matrices

basically i have 3 different matrices (A, B, and C). Each one contains different numbers and is of a different length. However, there are numbers common to all 3 of them. I need to be able to create an output that lists all numbers that are common to all 3 matrices.

For example,

A = [2; 5; 7; 9; 13];

B = [5; 13; 17];

C = [1; 2; 3; 5; 10; 13; 15; 16];

Thus, the common numbers in this case are 5 and 13.

Any idea how to compare the three and find these values?

Answer 1

[Andrei Bobrov]

intersect(intersect(A,B),C)

[Sean de Wolski]

Golf:

m=@intersect;

m(C,m(A,B))

[Sibel Akyuz]

very helpful thanks.

Answer 2

[Oleg Komarov]

Out = intersectm(A,B,C)

Answer 3

[Sean de Wolski]

C(ismember(C,A(ismember(A,B))))

[Matt Fig]

This approach can return repeated values if the elements of the individual vectors aren't unique.