Difference in matrix sizes

Why is the size in bytes for the two matrices different?

x = 1:2:10
y = [1:2:10]
whos x
whos y

The output shows that the two arrays have different sizes (24 bytes and 40 bytes).

x =
    1    3    5    7    9
y =
   1   3   5   7   9

Variables in the current scope:
  Attr Name        Size                     Bytes  Class
  ==== ====        ====                     =====  ===== 
       x           1x5                         24  double
Total is 5 elements using 24 bytes

Variables in the current scope:
  Attr Name        Size                     Bytes  Class
  ==== ====        ====                     =====  ===== 
       y           1x5                         40  double
Total is 5 elements using 40 bytes

Answer 1

[Andrew Reibold]

Clear your variables and try again and see if it still happens. Doesn't happen for me.

x = 1:2:10