HP 20B 24

Mathematical Calculations

Figure 8 The Menu Map for the Math Menu

Press <to scroll through the menu items, starting with Trigonometry. The Trigonometry, Hyperbolic, and Probability items have sub-menus. Press Iwith these items displayed to access the functions within the sub menus.

Press Oto cancel the Math menu and return to current work. Press :sto return to the top of the Math menu. For an example using the math menu to calculate Sin -1(0.5), see Table 2-5.

Contents

HP 20b Business Consultant Financial Calculator Manual Legal Notices Revision History Contents Page Page HP 20b Business Consultant Keyboard Keyboard Map Legend 1 Basic Features Welcome to the HP 20b Financial Calculator Turning the Calculator On and Off Selecting a Language Adjusting the Display Contrast Two Line Display The Mode Menu: Setting Preferences Page Changing the Calculation Mode Key Presses and the Secondary Function :Key Annunciators The I Key The =Key Using the I and = Keys Editing and Clearing Entries The On/CE OKey The Reset :xMenu Notes about Special Menus Memory and the Memory Menu Accessing Menus and Menu Maps Page 2 Mathematical Calculations Mathematical Functions Number Entry and Display Chain Mode Algebraic Mode Reverse Polish Notation (RPN) Mode The RPN Stack Last Number 3  4 5  6 3I4+ 5I6+ Page One-NumberFunctions and the Math Menu The Math :sMenu Page The Probability Sub-menu Two-NumberFunctions Storing and Recalling Numbers Recall Arithmetic Storing and Recalling with Time Value of Money (TVM) Keys Recalling a Menu Item Value in a Menu Rounding Numbers Percentages 200*25% 50+10% 200I25% 3 Time Value of Money Time Value of Money (TVM) Keys Page Calculating Payments on a Loan Amortization Creating an Amortization Schedule Interest Conversion Menu Using the Interest Conversion Menu Canadian Mortgages: TVM Canada Page Canadian Mortgage Example 4 Cash Flows Cash Flow Example 0}I Analyzing Cash Flows Page Editing Cash Flows Sample Cash Flow Diagrams 5 Bonds The Bond Menu Bond Calculation Example <4.75 :$1 +L1 6 Date Calculation The Date Calculation Menu Date Calculation Example <10.3 7 Break-even The Break-evenMenu Break-evenExample Page 8 Business Problems The Percent Calculation Menu Percent Calculation Examples <6I <30I 9 Depreciation The Depreciation Menu Page Depreciation Example Page 10 Statistical Operations The Data and Stats Menus Page Statistics Example :z <7I <I (a*X+b) 11 Errors Error Messages and Calculator Status Page 12 Warranty, Regulatory, and Contact Information Replacing the Batteries HP Limited Hardware Warranty and Customer Care Customer Care Page Page Product Regulatory & Environment Information Page Page Index