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 IKey .................................................................................................................. 12
The =Key ...................................................................................................................... 12
Using the Iand =Keys .......................................................................................... 12
Editing and Clearing Entries ............................................................................................. 13
The On/CE OKey .......................................................................................................... 13
The Reset :xMenu .................................................................................................... 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 :sMenu..................................................................................................... | 23 |
The Probability Sub-menu ................................................................................................ | 25 |