HP 20b Consultant Financial manual Math sMenu

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Mathematical Calculations

Table 2-3Shifted Function Mathematical Operations

Keys

:f

:g

:h

:i

:e

Description

Executes the Random function. Returns a random number in the range 0 < x <1.

Calculates factorial of x (where 0 ≤ x ≤ 253).

y x. Returns y to the x power.

Reciprocal.

Rounds x internally to the number specified by the display format. Default is two digits to the right of the decimal point.

The Math :sMenu

There are additional one-number functions available in the Math menu. To open

the Math menu, press :s. See Figure 2-2 for the menu map of the Math menu.

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Contents HP part number F2219-90001 First edition January Legal Notices Contents HP 20b Business Consultant On/Off FeatureSelecting a Language Adjusting the Display Contrast CursorTwo Line Display Mode Menu Setting Preferences Setting Display Description RPN Keys DisplayDescription Changing the Operating ModeKeys Display Description Key Presses and the Shift KeyAnnunciators Annunciator Symbol StatusIKey =Key Editing Entries and Clearing On/CE OKey Reset xMenuMemory Menu Map for the Break-even Menu Accessing Menus and Menu MapsBasic Features There are four types of menu items Number Entry and Display Mathematical Calculations Mathematical FunctionsChain Mode Keys Display Description Algebraic ModeReverse Polish Notation RPN Mode 5I6+ 3I4+One-Number Functions and the Math Menu Keys Description Math sMenu Menu Map for the Math Menu Keys Display Description Two-Number Functions Storing and Recalling Numbers Rounding Numbers Recalling Stored NumbersSimple Percentages Menu Map for the Data and Statistics Menus Statistical OperationsPage 150 165 160 175 170 Statistics Example Keys 3I1 60I 4I1 75I 5I1 70IKeys DisplayDescription Keys DisplayDescription Interest Conversion Menu Time Value of MoneyDescription 365 TVM Keys and Entering ValuesTVM Keys KeysDescription Time Value of Money 1400 00V AmortizationMenu Item/Key Description Menu Map for the Amortization Menu 5Amortization Menu ItemsMenu Item/Key Description KeysDisplayDescription 10YTime Value of Money 6Amortization Example Cash Flows KeyDescription Key Description 8000 4500 4000 11500 Analyzing Cash Flows Menu Map for the NPV and IRR Menus Inv. I%= Net PV= RIRR%= Editing Cash Flows Business Problems Keys Display Description 15I 20I 80I Business Problems 3Part % of Total Example Bonds Variable Description Bond MenuVariable Description Key Display Description 20102020 OL1+ L2= Depreciation Soyd Depreciation Description MethodAcrs Life= Factor= 500I 1000Key Display Description Break-even 250I 1500 00IKeys Display Description HP Limited Hardware Warranty and Customer Care Page Customer Care Modifications Canadian Notice Xxxx Japanese Notice HP-INVENT Contact India Indonesia +65 6100 Ireland Paraguay HP Invent
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