Reserved Variables; Αenter; Alrmdat - HP 48gII Advanced User's Reference Manual

10.Reserved Variables

The hp49g+/hp48gII uses the following reserved variables. These have specific purposes, and their names are
used as implicit arguments for certain commands. Avoid using these variables' names for other purposes, or
you may interfere with the execution of the commands that use these variables.
You can change some of the values in these variables with programmable commands, while others require
you to store new values into the appropriate place.
Reserved Variable
αENTER

ALRMDAT

βENTER
CST
"der"- names
ENVSTACK
EQ
EXITED
EXPR
IOPAR
MASD.INI
MHpar
Mpar
n1, n2, ...
Nmines
PPAR
PRTPAR
REALASSUME
What It Contains
Program run on ENTER
Alarm parameters.
Program run after ENTER
List defining the CST
(custom) menu.
User-defined derivative.
Flags and current path
Current equation.
Program run after EDIT
Current expression.
I/O parameters.
Valid source code.
Minehunt game status.
Multiple-Equation Solver
equations.
Arbitrary integers.
Minehunt game data.
Plotting parameters.
Printing parameters.
List of variable names of reals CAS
Used By
Vectored ENTER
TIME ALRM operations
Vectored ENTER
MENU, „£
PUSH, POP
ROOT, DRAW
EDIT
SYMBOLIC
I/O commands
Compiler
MINEHUNT
EQ LIB
ISOL, QUAD
MINEHUNT
DRAW
PRINT commands
Reserved Variables D - 1
D