1 Basic Features
Welcome to your new HP Financial Calculator
This manual is designed to familiarize you with the many features available on your new HP Business and Financial calculators. It includes menu maps, cash flow diagrams, and example problems and solutions with key presses and screen shots. Also included are sections which list the error messages, a chapter about programming, and an explanation of how Reverse Polish Notation (RPN) works. Refer to the Table of Contents for quick access to various topics. If you need more information about your calculator or calculator operation, please refer to the training materials available at: www.hp.com/calculators.
This manual describes in detail the features available on both the HP 20b and the HP 30b calculators. In addition to all of the features found on the HP 20b, the HP 30b includes the
Turning the Calculator On and Off
To turn on your calculator, press O. To turn it off, press :a.
Turning the calculator off does not erase any data. The calculator automatically turns itself off
after approximately five minutes to conserve energy. If you see the low battery symbol (
) in the display, replace the batteries. See the Chapter 15, Warranty, Regulatory, and Contact Information for instructions on replacing the batteries.
Selecting a Language
English is the default language for messages displayed on the screen. To select a language other than English:
1.Press :uto access the Mode menu. FIX displays on the top line of the screen.
2.Press <repeatedly until English displays on the screen.
3.Press Iuntil the desired language is displayed. The displayed language is the active setting.
4.Press Oto return to the default calculator screen.
5.For more information on accessing menus and changing calculator settings, refer to the section below titled, The Mode Menu: Setting Preferences.
Adjusting the Display Contrast
To adjust the contrast of the display, press and hold Owhile pressing the +or -
keys. Each press of the +or
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