Finding common elements in an array (even if they are not in the same position)

I have two vectors a and b. Both vectors may not be of the same length. I want to find the common elements between these vectors. For example, if the number 1 appears in both vectors a and b, then i should output 1 and all other common elements.

I am struggling to think of how to do this. Any insights? Thanks

Answer 1

[Matt J]

a=1:10

a = 1×10

1 2 3 4 5 6 7 8 9 10

b=[1,11]

b = 1×2

1 11

c=intersect(a,b)

c = 1