HP HP-28S - Creating a Numerical Variable

Creating a Numerical Variable
Suppose you repeatedly use a volume measurement of 133 in your
calculations. Create a variable named VOL (for "volume") as follows:
Clear
the stack and select the USER menu .
• 1 CLEAR I I USER I
The USER menu shows your variables. It's blank because you haven't
created any variables yet.
Put the number in level 1.
1331 ENTER I
Put the name 'VOL' in level 1.
e] VOL 1 ENTER I
1
3
:
I
2:
1: 133
------
3:
2: 133
1: 'VOL'
------
Note that the closing , is added for you. The number 133 is lifted to
level 2. (In practice you don't need to press 1 ENTER I, but it's included
here for clarity.)
Create the variable VOL.
IL _____ I
The number and the name are removed from the stack, creating a
variable
named VOL with a value of 133. Note that VOL now appears
in the USER menu.
3: Using Variables 49