HP 48GII User Manual

D - 8 Reserved Variables
The $RESET$ operation („&ôL %RESET% ) resets the PPAR parameters ( except ptype ) to their default
values, and erases PICT. (Note: the & means to press and hold the „key while pressing ô).
Note that res behaves differently for the statistical plot types BAR, HISTOGRAM, and SCATTER than for
other plot types. For BAR, res specifies bar width; for HISTOGRAM, res specifies bin width; res does not affect
SCATTER.
PRTPAR
PRTPAR is a variable in the HOME directory that contains a list of printing parameters. It is created
automatically the first time you use a printing command.
Parameter (Command) Description
Default
Value
delay time (DELAY)
A real number, in the range 0 to 6.9, specifying the
number of seconds the HP 49 waits between sending
lines. This should be at least as long as the time
required to print the longest line. If the delay is too
short for the printer, you will lose data. The delay
setting also affects serial printing if transmit-pacing
( in IOPAR ) is not being used.
1.8
remap (OLDPRT stores
the character-remapping
string for the HP 82240A
Infrared Printer)
A string defining the current remapping of the
extended character set for printing. The string can
contain as many characters as you want to remap, with
the first character being the new character 128, the
second being the new character 129, etc. ( Any
character number that exceeds the string length will
not be remapped. ) See the example below.
Empty
string.
line length
A real number specifying the number of characters in a
line for serial printing. This does not affect infrared
printing.
80
line termination
A string specifying the line-termination method for
serial printing. This does not affect infrared printing.
Note that control character 13 is the carriage return and
10 is the line feed.
Control
characters
13 and 10.
Parameters without modified commands can be modified with a program by storing new values in the list
contained in PRTPAR ( use the PUT command ).
Example: If the remapping string were “ABCDEFGH” and the character to be printed had value 131, then the
character actually printed would be “D”, since 131
–128=3 and “A” has the value zero. A character code of 136
or greater would not be remapped since 136
–128=8, which exceeds the length of the string.
REALASSUME
The variable REALASSUME contains a list of variables which the CAS assumes are real values.
STARTED
If it exists, the STARTED variable is evaluated when the command-line editor is evaluated.

HP 48GII Specifications

General

Battery type	CR2032
Type	Scientific
Form factor	Pocket

Weight and Dimensions

Weight	220 g
Dimensions (WxDxH)	184 x 87 x 23.5 mm

Summary

RPL Programming

Understanding Programs

Programs as objects, delimiters, and basic structure.

Entering and Executing Programs

Details on how to create, store, and run programs.

Using Conditional Structures

Covers IF, CASE, IFT, IFTE structures for program decision-making.

Input and Output Commands

Details commands like PROMPT, INPUT, INFORM, CHOOSE for user interaction.

RPL Programming Examples

Fibonacci Numbers

Demonstrates recursive and loop-based Fibonacci calculations.

Minimum and Maximum Array Elements

Details finding min/max elements using MNX and MNX2.

Applying a Program to an Array

Explains the APLY command for transforming array elements.

Full Command and Function Reference

How to Access Commands and Functions

Explains key presses and menu paths to access commands.

ABS (Absolute Value)

Details the absolute value function and its array behavior.

ACOS (Arc Cosine)

Explains the inverse cosine function, domain, and range.

Computer Algebra Commands

CAS Operations

Overview of CAS operations and their categorization by menu.

Algebra commands

Lists and describes commands for algebraic manipulation.

Calculus Commands

Covers derivation, integration, and limit commands.

Equation Reference

Columns and Beams (1)

Provides equations for structural mechanics.

Electricity (2)

Lists equations related to electrical circuits and laws.

Fluids (3)

Covers equations for fluid mechanics.

The Development Library

Introduction

Explains the purpose and usage of the development library.

Tools for Development

Details APEEK, PEEK, POKE, POKEARM commands.

MASD Compiler

Discusses syntax, modes, and directives for MASD.

Error and Status Messages

Messages Listed Alphabetically

Alphabetical list of error messages.

Messages Listed Numerically

Numerical list of error messages by hex code.

System Flags

System Flags (continued)

Description of various system flags.

System Flags (continued)

Continuation of system flags description.

Reserved Variables

Contents of the Reserved Variables

Explanation of key reserved variables.

PPAR

Details plotting parameters.

Technical Reference

Object Sizes

Lists object sizes in bytes.

Symbolic Integration Patterns

Provides a table of symbolic integration patterns.

Parallel Processing With Lists

General rules for parallel processing

Explains conditions for parallel list processing.

Group 4: ADD and +

Describes how ADD and + handle parallel list operations.

Keyboard Shortcuts

Press and Hold key combinations

Lists functions performed by key combinations.

Shifted softkeys

Explains shift key effects on menu labels.

The Menu-Number Table

-- menus 0-117 are semi-compatible with 48G menus --

Menu numbers and paths for built-in menus.

-- New Library 222 commands --

Details commands available in Library 222.