Question

I’m learning Matlab and I see a line that I don’t understand:

A=[x; y']

What does it mean? ‘ usually means the transponate but I don’t know what ; means in the vector. Can you help me?

Answer 1

The [ ] indicates create a matrix.
The ; indicates that the first vector is on the first line, and that the second one is on the second line.
The ‘ indicates the transponate.
Exemple :

>> x = [1,2,3,4]
x = 
    1 2 3 4

>> y = [5;6;7;8]
y =
    5
    6
    7
    8

>> y'
ans =
    5 6 7 8

>> A = [x;y']
A = 
    1 2 3 4
    5 6 7 8