HP 20B manual Editing and Clearing Entries On/CE O Key, Reset x Menu, Memory and the Memory Menu

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Basic Features

When an item for which the =key is valid displays, the small annunciator (=) is displayed on the top line at the right of the

screen. Do not confuse this small annunciator (=) with the larger annunciator (=) found to the right of a variable.

When an item for which the Ikey is valid displays, the INPUT annunciator is displayed on the top line at the right of the screen.

Editing and Clearing Entries

The On/CE O Key

Pressing Oone time cancels current number entries, mathematical operations, or a menu selection, in that order.

Pressing Orepeatedly when performing multiple operations cancels one operation at a time, from the latest to the earliest.

The Reset :x Menu

The Reset menu allows you to reset some, or all, of the menu items, variables, and registers to their default values.

To open the Reset menu, press :x. TVM displays on the top line. Press <or >repeatedly to scroll to a specific item. To validate a choice and reset the selected items, press I. Press Oto cancel. If you select the command to reset the cash flow (Cash Flow ), statistics (Stats ), or all values (All ) items, you will be prompted to confirm your choice. At the Del. All?, Del. Data?, and Del. CF? prompts, press Iagain to confirm the reset, or Oto cancel.

While working within a specific menu, pressing :xtakes you directly to the item of the Reset menu that allows you to reset that specific menu. For example, if you are working in the Bond menu and you wish to reset all your entries in the Bond menu, with any item of the Bond menu displayed, press :x. Bond displays on screen. At this prompt, pressing Iresets the Bond menu and returns you to the last item you were working with in the Bond menu.

Notes about Special Menus

The Mode, Memory, Math and Reset menus are special menus; if you were working in a menu prior to entering one of these special menus, pressing Oto exit them returns you to your previous menu,. This feature allows you to work in two or more menus simultaneously without having to exit a menu.

Memory and the Memory Menu

The Memory menu contains the following items: memories 1-9 (Mem 1-9) and 0 (Mem 0 ), Cash Flow, Statistics (Stats), and Memory. To enter the menu, press :t. Press <or >repeatedly to scroll through the items starting with memory 1 (Mem 1 ).

When a memory item is displayed, you can enter a new number and modify the value of the memory by pressing I.

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Contents HP part number F2219-90201 First edition August HP 20b Business Consultant Financial Calculator ManualRevision History Legal NoticesLegal Notices Revision HistoryContents Time Value of Money Business ProblemsCash Flows BondsWarranty, Regulatory, and Contact Information ErrorsIndex Feature Chapters FeatureHP 20b Business Consultant Keyboard Keyboard Map LegendAdjusting the Display Contrast Basic FeaturesBasic Features Selecting a LanguageTwo Line Display Mode Menu Setting PreferencesSetting top line Description Basic Features 1Mode Menu SettingsKeys Display Description Changing the Calculation ModeAnnunciators Key Presses and the Secondary Function KeyI Key Using the I and = Keys= Key Editing and Clearing Entries On/CE O Key Reset x MenuMemory and the Memory Menu Accessing Menus and Menu Maps Menu Map for the Break-even Menu Mathematical Functions Mathematical CalculationsNumber Entry and Display Algebraic Mode Chain ModeRPN Stack Reverse Polish Notation RPN ModeU3I Last NumberO1c23 I56c1 5I6+ 3I4+Mathematical Calculations 2Last Number RPN StackKeys Display Description RPN Stack RPN Stack and the Roll Down Operation One-Number Functions and the Math MenuKeys Description Math s MenuMenu Map for the Math Menu Mathematical Calculations 5Math Menu Example Probability Sub-menuIor = 10I Two-Number Functions10I 12I 7Inverse Probability ExampleStoring and Recalling Numbers Storing and Recalling with Time Value of Money TVM Keys Recall ArithmeticRecalling a Menu Item Value in a Menu Rounding NumbersPage Time Value of Money TVM Keys Time Value of MoneyTime Value of Money 1400 360 N00V Calculating Payments on a LoanTime Value of Money 2TVM Example AmortizationMenu Item/Key Description 1400 00V 10YCreating an Amortization Schedule Interest Conversion Menu Using the Interest Conversion Menu365 Canadian Mortgages TVM CanadaTime Value of Money 6Interest Rate Conversion Example Page Canadian Mortgage Example O300N 6Y350 00VCash Flows Cash Flow DiagramKey Description Cash Flow ExampleCash Flow Amount 5000I 80004500I 4000IAnalyzing Cash Flows 115000Cash Flows 2Cash Flow Example IRR% NPV and IRR Menu ItemsCash Flows 4NPV and IRR Example Editing Cash FlowsSample Cash Flow Diagrams Bond Menu Bonds2020 2010Bond Calculation Example Bond Menu ItemsBonds 2Bond Calculation Example +L1=Date Calculation Menu Date CalculationDate Calculation Example Date Calculation 1Date Calculation Example 10.3 12010Break-even Menu Break-evenBreak-even 1Break-even Example Percent Calculation Menu Business Problems22I 15I20I 35I80I What is 30% of 80? 4Part % of Total Example30I Depreciation Menu Depreciation2Depreciation Menu Items 1Depreciation MethodsDepreciation Method Description Sline 500 1000Depreciation Example Depreciation Menu ItemsDepreciation 3Straight Line Depreciation Example Menu Maps for the Data and Statistics Menus Statistical OperationsData and Stats Menus Menu Item Description Statistical Operations 1The Statistics Menu Items2I1 65I 1I1 50I3I1 60I 4I1 75IStatistical Operations 3Statistics Example 5I1 70IError Messages and Calculator Status Errors1Error Messages Error Message Status HP Limited Hardware Warranty and Customer Care Warranty, Regulatory, and Contact InformationReplacing the Batteries Customer Care Honduras Hong Kong 香港特別行政區 852 India 210 969+65 6100 Ireland 01 605 Italia 02 754 19495 228 877 23201 439 Singapore 6100Modifications Product Regulatory & Environment InformationCanadian Notice Avis CanadienChemical Substances Pbde Calendar Actual, Cal.360 IndexOff calculator off
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