Keyboard Map Legend ....................................................................................................... 6
Basic Features
Welcome to the HP 20b Financial Calculator ..................................................................... 7
Turning the Calculator On and Off...................................................................................... 7
Selecting a Language ......................................................................................................... 7
Adjusting the Display Contrast............................................................................................ 7
Cursor ................................................................................................................................. 7
Two Line Display ................................................................................................................ 8
The Mode Menu: Setting Preferences ................................................................................ 8
Changing the Calculation Mode........................................................................................ 10
Key Presses and the Secondary Function : Key .......................................................... 11
Annunciators..................................................................................................................... 11
The I Key .................................................................................................................. 12
The = Key ...................................................................................................................... 12
Using the I and = Keys .......................................................................................... 12
Editing and Clearing Entries ............................................................................................. 13
The On/CE O Key .......................................................................................................... 13
The Reset :x Menu .................................................................................................... 13
Notes about Special Menus.............................................................................................. 13
Memory and the Memory Menu........................................................................................ 13
Accessing Menus and Menu Maps................................................................................... 14

Contents

Contents

Legal Notices

Revision History

2

HP 20b Business Consultant Keyboard

1

2 Mathematical Calculations

 

Mathematical Functions

16

Number Entry and Display

16

Chain Mode

17

Algebraic Mode

17

Reverse Polish Notation (RPN) Mode

18

The RPN Stack

18

Last Number

19

One-Number Functions and the Math Menu

22

The Math :s Menu

23

The Probability Sub-menu

25

3

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Image 3
HP 20B manual Contents