To Next Page

To Previous Page

Contents -1

Contents

Contents........................................................................................................................................................................................ 1

1. RPL Programming................................................................................................................................................................. 1-1

Understanding Programming .............................................................................................................................................1-1

The Contents of a Program ......................................................................................................................................... 1-1

Calculations in a Program ...........................................................................................................................................1-2

Entering and Executing Programs......................................................................................................................................1-3

Viewing and Editing Programs ..........................................................................................................................................1-6

Creating Programs on a Computer .....................................................................................................................................1-7

Using Local Variables........................................................................................................................................................1-7

Creating Local Variables.............................................................................................................................................1-7

Evaluating Local Names .............................................................................................................................................1-8

Defining the Scope of Local Variables .......................................................................................................................1-9

Compiled Local Variables.........................................................................................................................................1-10

Creating User-Defined Functions as Programs......................................................................................................... 1-10

Using Tests and Conditional Structures ...........................................................................................................................1-11

Testing Conditions ....................................................................................................................................................1-11

Using Conditional Structures and Commands .......................................................................................................... 1-13

Using Loop Structures......................................................................................................................................................1-17

Using Definite Loop Structures ................................................................................................................................ 1-17

Using Indefinite Loop Structures.............................................................................................................................. 1-21

Using Loop Counters ................................................................................................................................................1-24

Using Summations Instead of Loops ........................................................................................................................1-25

Using Flags.......................................................................................................................................................................1-25

Types of Flags...........................................................................................................................................................1-26

Setting, Clearing, and Testing Flags ......................................................................................................................... 1-26

Recalling and Storing the Flag States ....................................................................................................................... 1-27

Using Subroutines ............................................................................................................................................................1-28

Single-Stepping through a Program .................................................................................................................................1-29

Trapping Errors ................................................................................................................................................................1-32

Causing and Analyzing Errors ..................................................................................................................................1-32

Making an Error Trap ...............................................................................................................................................1-33

Input .................................................................................................................................................................................1-35

Data Input Commands...............................................................................................................................................1-35

Using PROMPT … CONT for Input ........................................................................................................................1-35

Using DISP FREEZE HALT … CONT for Input .................................................................................................... 1-37

Using INPUT … ENTER for Input .......................................................................................................................... 1-38

Using INFORM and CHOOSE for Input.................................................................................................................. 1-42

Beeping to Get Attention .......................................................................................................................................... 1-45

Stopping a Program for Keystroke Input .........................................................................................................................1-46

Using WAIT for Keystroke Input .............................................................................................................................1-46

Using KEY for Keystroke Input ...............................................................................................................................1-46

Output .......................................................................................................................................................................1-46

Data Output Commands............................................................................................................................................ 1-47

Labeling Output with Tags .......................................................................................................................................1-47

Labeling and Displaying Output as Strings ..............................................................................................................1-48

Pausing to Display Output ........................................................................................................................................ 1-48

Using MSGBOX to Display Output .........................................................................................................................1-49

Using Menus with Programs............................................................................................................................................1-49

Using Menus for Input .............................................................................................................................................. 1-50

Using Menus to Run Programs .................................................................................................................................1-50

Turning Off the hp49g+/hp48gII from a Program ...........................................................................................................1-52

2. RPL Programming Examples ................................................................................................................................................2-1

Fibonacci Numbers ............................................................................................................................................................2-1

Battery type	CR2032
Type	Scientific
Form factor	Pocket

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

HP 48GII User Manual

Table of Contents

Other manuals for HP 48GII

Questions and Answers:

HP 48GII Specifications

Related product manuals