Variables (continued)

You can do one more thing with variables. It is the core meaning of it: to vary (change). You can update a variable by assigning it a new value:

• add a variable x with value 5
• output x
• add an "Assign" block with variable x and value 19
• output x

When you run the program you should see 2 numbers printed:

• 5 - First value of x
• 19 - New value of

Of course, you can assign complex expressions (calculations), which can include variables too!