How to add values ​​to a vector

Hello! I have the values ​​obtained from the matrix E = 1x11004, with some operations in the loop I need to remove the last values, can I do 1x11004 + 2 = 1x11006. My last values ​​are 200 201 200 203, and I want to do 200 201 200 203 0 0

Answer 1

[KSSV]

To add/ append

A = rand(1,10) ; 
B = zeros(1,2) ; 
iwant = [A B]

To Remove

A = rand(1,12)
A(11:12) = []