HP 49g+ hp 48gii graphing calculator Manuale Utente

 

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