extracting value from a vector

Hello everybody!

i need help extracting some values ​​from a vector. More specifically, I have two vectors A and B (vector A contains 1: 3000 while vector B contains 10 random numbers) and I need to extract from vector A only the values ​​contained in Vector B. I have already tried with "== "and" iseq ", but the vectors are not the same length and therefore I cannot perform the operation.

thank you for your time!

Answer 1

[Olof Engström]

[intersection, indices] = intersect(A,B)

There you get the intersecting values and the indices to the intersecting values in A

[Andrea Miceli]

Thank you! It's worked.