HP HP-28S - Purging a Variable; Changing the Name of a Variable

Check the new value.
VOL
3: 133
2: 133
1: 151
EaII ____ _
Purging a Variable
When you finish with the variable VOL, purge it from user memory.
Write
the variable name in the command line.
~ VOL
2: 133
1: 151
'VOLE!
EaII ____ _
(The quote ~ is necessary to avoid evaluating the variable.)
Purge the variable VOL from user memory.
.1 PURGE 1 ~3~:----------------~1~3~3
2: 133
1: 151
------
Note that the label for VOL disappears from the USER menu.
Changing the Name of a Variable
You can effectively change the name of a variable by creating a new
variable with the same value and purging the original variable.
In this
section you'll first go through the steps required to rename a
variable,
then write a program that contains the same steps, and fi-
nally store
the program in a variable and execute it by name.
52 3: Using Variables
I