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Changing The Value Of A Variable - HP -28S Manual

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Changing the Value of a Variable
You can change the value of a variable by using the same procedure
as when you created the variable. The new value replaces the old
value.
Now change the value of the variable VOL to 15I.
Write the new value in the command line.
151
2:
133
1:
133
1510
m!II _ _ _ _ _
Note that the cursor appears as an empty box. The cursor will change
in the next step.
Write the variable's name in the command line.
CJ
VOL
2:
133
1:
133
151' VOL!;;!
m!II _ _ _ _ _
The cursor changed when you pressed
CJ
to indicate the new entry
mode-how the calculator responds when you press keys.
Initially the command line was in immediate execution mode, suitable
for keyboard calculations. When you pressed
CJ,
which indicates a
name or an expression, the command line changed to algebraic entry
mode, suitable for entering names and expressions:
• Pressing a function key such as
G
writes the character
+
rather
than executing the command .
• Pressing a USER menu key writes the variable's name rather than
evaluating the variable.
Now store the new value in the variable.
3:
133
2:
133
1:
133
m!II _ _ _ _ _
3: Using Variables
51

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