How to filter out multiple rows based on another array?

I have two arrays, a, b, one has numbers from 1,2, to 12. The other has 5 numbers 3,4, to 7. I want to filter out the rows in a that are not in b. How to do that? Thanks in advance.

Answer 1

[James Tursa]

result = a(ismember(a,b));

[JFz]

Works! Thank you!