HP 48G - Page 6

Most other stack commands are various exchanges,
shifts or duplications, which you can do two ways.
The Interactive Stack
(©JMENU) (or just (a)) starts the interactive stack,
where you can move a pointer (using(a)and(v)) to any
givenlevel. Forexample, press(&JCLEAR)and do this:
(3JENTER] (1]ENTER) (7JENTER) JENTER) [ENTER). The 3
you entered is now out of view, up atlevel 5. To move
up the stack to see it, press (a) to activate the interac-
tive stack pointer, then just (a]a]a]a).
Notice the menu items that appear in the interactive
stack. Move your pointer down to level 1 (v]¥]¥]v)),
then up to level 3 ((a]a)). Now try these menu items:
=T sends the contents of the current level to the
editor, where you can edit it without disturbing other
objects on the stack. Use to accept the change
(or [CANCEL) not to). copies the current level's
object down at level 1; all other entries will shift up a
level (now you should have sixentries). [FTTHM sends
the current level's object to level 1; the entries below
it shift up one level. sends the current level’'s
object down a level; the previous contents of level 1
take its place. “echoes” the object at a stack
level to the command line. (The item in the
(JEDIT) menu also starts the interactive stack to let
you use [3HI['}.) (CANCEL) returns to the normal stack.
(73)
[OVER ROT ROLL [ROLLD] PICK |DEPTH
T TT TGE) T
The (&]STACK]) menu offers stack manipulations simi-
lar to the interactive stack, but you indicate the de-
sired level with a command argument, not a pointer.
Error Recovery Features*
The operation (also commonly known as
“Last Stack”) returns the stack to its status just before
the last operation. Other related commands: (=]ARG)
keeps your last result on the stack but returns the last
arguments used by the HP 48G/GX. offers
the last four command line entries for retrieval.
*Because these features consume time and memory to maintain, they
can be deactivated—see the («<5JMODES) menu under RxlEIN.
4 THE HP 48G/GX Pocker GuiDE