HP 20b Consultant Financial manual Recalling Stored Numbers, Rounding Numbers

Page 32

Mathematical Calculations

4.To recall a number, press L. With RCL displayed in the top line, key in the number of the memory you used.

You can also perform operations to stored numbers. For example, press 5:$2to store 5 in memory 2. To add 12 to the value of memory 2, press 12:$+2. Later on, during a calculation, you can press L2to recall memory 2. Note how the new current value is 17, (5 +12). +-*and /are valid mathematical operations in the storage

memories.

Recalling Stored Numbers

In RPN, typing 12L+2=adds the value of memory 2 to 12, but it will not modify the stored value of memory 2. You can also use -*and /after L.

In Algebraic and Chain modes, press 12+L2=.

Rounding Numbers

The 20b performs all calculations internally with 15-digit precision and rounds to 12 digits when returning the results.

When displayed, a number is rounded to the number of digits after the decimal point set by the FIX= item in the Mode menu. The default setting is two digits to the right of the decimal point. For more information, refer to the section titled, The Mode Menu: Setting Preferences.

32

Image 32
Contents HP part number F2219-90001 First edition January Legal Notices Contents HP 20b Business Consultant Feature On/OffSelecting a Language Two Line Display Adjusting the Display ContrastCursor Mode Menu Setting Preferences Setting Display Description RPN Changing the Operating Mode Keys DisplayDescriptionKey Presses and the Shift Key Keys Display DescriptionAnnunciator Symbol Status AnnunciatorsIKey =Key Reset xMenu Editing Entries and Clearing On/CE OKeyMemory Accessing Menus and Menu Maps Menu Map for the Break-even MenuBasic Features There are four types of menu items Mathematical Calculations Mathematical Functions Number Entry and DisplayChain Mode Algebraic Mode Keys Display DescriptionReverse Polish Notation RPN Mode 3I4+ 5I6+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 Recalling Stored Numbers Rounding NumbersSimple Percentages Statistical Operations Menu Map for the Data and Statistics MenusPage 150 165 160 175 170 Statistics Example 3I1 60I 4I1 75I 5I1 70I KeysKeys DisplayDescription Keys DisplayDescription Time Value of Money Interest Conversion MenuDescription TVM Keys and Entering Values 365TVM Keys KeysDescription Time Value of Money Amortization 1400 00VMenu Map for the Amortization Menu 5Amortization Menu Items Menu Item/Key DescriptionMenu Item/Key Description 10Y KeysDisplayDescriptionTime 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 Bond Menu Variable DescriptionVariable Description 2010 Key Display Description2020 OL1+ L2= Depreciation Depreciation Description Method SoydAcrs Life= Factor= 1000 500IKey Display Description Break-even 1500 00I 250IKeys 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
Related manuals
Manual 114 pages 5.83 Kb