HP 48G - (VAR), Variables and Names

(VAR), VARIABLES AND NAMES
Storing Objects in Names
If an objectis on the stack, you can nameit (i.e., store
itin a name): Position the object at stack level 2 and
the desired name at level 1, using algebraic apostro-
phes aroundthe name (e.g. ' name'). Then justpress
(sTol. Name and object (the arguments) disappear
from the stack, but the name appears as the newest
(left-most) item in the VARiable menu, which you see
via (VAR]. This menu (which is menu #2) shows the
names of all objects stored in the current directory.
Examples: To store the real number 93 in the name
UUIZ,
press
(e]3)ENTER)
(e[
Q
W
Z)()ETO)
Tostorethevector[ 3 4 1inthe name TRI, press
(eJtals]sPc]4] (LeJeJTIRI1(](sTO)
To store the algebr. expression 'L*l' inArea, press
(" TelLIX] e ]WIENTER)( o] [ e <) ALRIELA)(«(STO)
To store the name BIIIZ in the name TEST, press
(' JeJoJo[ulZ) [ TeJoJTIE[SITI]STO)
Invoking Names
In any menu, including VAR, a menu item is just a
typing aid, a shortcut for typing the name and press-
ing (ENTER). So pressing a VAR menu key treats that
name like any other name—it evaluates it, putting its
contents onto the stack (or executing it, if it's a pro-
gram). So, afterthe above examples, pressing IETTER
(or typing (@)a]QJU]1)Z)ENTER) will put 93 onto the
stack. By contrast, to put a name onto the stack with-
outevaluating it, you must enter it as an algebraic ob-
ject: ("IEITER (or () @lQ)u)1)Z)) ENTER.
Note also that you can use (&) to store and () to recall
VAR name values. So (again, using the above),
(SIETTEH is the same as (9)9)EnTER)( IETTEN (STO).
And JIETTEH is the same as ([ JIETTFE=)RCL).
Purging (Erasing) Names
To purge a name from the VAR menu in the current
directory, putthe ' name' onthe stack and use(<5]PURG).
To purge a group of names at once, put the names
into alist (and the VAR menuis a typing aid here, too):
(QOETERETN. .., etc., [ENTER), then use(<4]PURG).
6 THE HP 48G/GX Pocker GuIDE