matlab - How to get the elements from one vector that aren't in another vector

Question

I know this is simple but am having a hard time finding the right function for this. I have a vector a = [1 2 3 4] and another vector b = [1 2 6 8]. I want to return all of the elements in a that aren't in b. In this case, it would be [3 4]. How do you do this?

Answer 1

did you try with setdiff?

c = setdiff(a,b)