Variables
Variables have values that can change during the life of the application.
a=3
a=[5,6;7,8]
The variable a is first given the value of 3, and then given the value of a 2 by 2 matrix. Variables are not typed; they can refer to any legal data structure. The type of a variable may change during the life of the application.
a=3
b=a
a=4
At the end of this sequence, b has a value of 3 and a has a value of 4.
x=3
y=4
z=[x,y]
C = ...
[0 0 1 0;
0 0 0 1]