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The Vars (variables) Catalog; Clearing Variables - HP -22S Owner's Manual

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The VARS (Variables) Catalog
When you store a non-zero value in a variable, a portion of calculator
memory is
allocated
to the variable. The VARS catalog, which is
viewed by pressing
.1
MEM
1
{VARS},
lists all the allocated variables
and their values. Press
[Y)
or
.~
to "roll'" through the entire catalog.
To cancel the catalog, press @].
To use a variable directly from the catalog, press
I RCL
1
while the vari-
able is displayed.
Keys:
51
STO
1
A
Calculate 9
X
A:
Display:
A=5.13131313
9.13131313X
Description:
Stores 5 in A.
Start a calculation.
You want to verify the value of A before you use it in the calculation .
1
MEM
1
{VARS}
IRCLIG
Clearing Variables
A =5.13131313
45.13131313
Clearing variables sets them equal to O.
Displays A in catalog.
Calculates 9 x A.
Clearing Individual Variables. There are two ways to clear an indi-
vidual variable:
• Display the variable in the VARS catalog (see "The VARS Catalog,..
above) and press
.1
CLEAR I .
• Store zero into the variable.
Clearing All Variables. To clear all the variables, press
.1
CLEAR
1
to
display the CLEAR menu, then
{VAR}.
Respond
{y}
to the prompt.
40
2: Arithmetic and Variables

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