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HP 20b Business Consultant
Financial Calculator Manual
For free training, visit www.hp.com/go/calctraining
HP part number: F2219-90201
First edition: August 2008
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Legal Notices Legal Notices This manual and any examples contained herein are provided “as is” and are subject to change without notice. Hewlett-Packard Company makes no warranty of any kind with regard to this manual, including, but not limited to, the implied warranties of merchantability, non-infringement and fitness for a particular purpose. Hewlett-Packard Company shall not be liable for any errors or for incidental or consequential damages in connection with the furnishing, performance, or
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Contents Contents Legal Notices Revision History..................................................................................................................2 HP 20b Business Consultant Keyboard Keyboard Map Legend .......................................................................................................6 1 Basic Features Welcome to the HP 20b Financial Calculator .....................................................................7 Turning the Calculator On and Off...........
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Contents Two-Number Functions ....................................................................................................26 Storing and Recalling Numbers........................................................................................27 Recall Arithmetic...............................................................................................................28 Storing and Recalling with Time Value of Money (TVM) Keys .........................................28 Recalling a Me
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Contents Statistics Example.......................................................................................................63 11 Errors Error Messages and Calculator Status.............................................................................65 12 Warranty, Regulatory, and Contact Information Replacing the Batteries.....................................................................................................67 HP Limited Hardware Warranty and Customer Care...................
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HP 20b Business Consultant Keyboard HP 20b Business Consultant Keyboard Keyboard Map Legend No. Feature Chapter(s) No. Feature Chapter(s) 1 Time Value of Money keys 3 16 Annunciator display area 1 2 Cash Flows, IRR, and NPV 4 15 Amortization and Depreciation 3,8 menus menus 3 Data and Statistics menus 9 14 % key and Percent 2,6 Calculation menu 4 Input key 1 13 Store and Recall 2 5 Memory menu 1 12 Break-even menu 6 6 Up/Insert and Down/Delete 1 11 Backspace key and Reset 1 keys menu 7 Secondary
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Basic Features 1 Basic Features Welcome to the HP 20b Financial Calculator This manual is designed to familiarize you with the many features of your new 20b Financial Calculator. It includes menu maps, example problems and solutions with key presses, screen shots, and examples of cash flow diagrams. There are also sections which list the error messages and explain how RPN works. Refer to the section titled, Contents for quick access to various topics. If you need more information about your calc
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Basic Features Two Line Display There are two lines in the display screen as shown in Figure 1. Figure 1 Display Screen The top line of the screen displays operation status, operator symbols, annunciators, and abbreviations of the registers, variables, and menu names. Throughout this manual, this line is referred to as the top line. In Figure 1, SIN is on the top line. The bottom line displays numbers you have entered, or results. Throughout this manual, this line is referred to as the bottom li
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Basic Features Table 1-1 Mode Menu Settings Setting (top line) Description FIX= 2 Display precision (number of digits displayed to the right of the decimal point). Default is 2. Key in the number of digits you want and press I, or press = until the number of digits you want is displayed. The display precision can be any number from 0-11. If you specify -1, the calculator displays numbers with the most appropriate number of digits after the decimal point. If you find you need to change the FIX se
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Basic Features Table 1-1 Mode Menu Settings Setting (top line) Description English, Français, Language setting for the messages displayed on the screen. Deutch, or Español Default is English. Pressing I cycles through these options. Actual or Calendar options for bonds and date calculations. Cal.360 Default is Actual. Pressing I toggles between these options. Annual or Semiannual Bond type. Default is Annual. Pressing I toggles between these options. TVM Standard or TVM Activate or deactivate th
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Basic Features Key Presses and the Secondary Function : Key To execute the function associated with a key, press and release the desired key. Most of the 20b's keys have two functions: the primary function and the secondary function. The primary function is printed on the top of the key. The secondary function is printed on the bevel of the key. See Figure 2. Primary Function R Secondary (shifted) Function Figure 2 Primary and Secondary Key Functions To activate the secondary function of a key,
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Basic Features Figure 3 Annunciator Symbols in the Screen Display The I Key The I key is used to input values for variables and execute menu items. The I key is also used in Reverse Polish Notation (RPN) mode to enter a number on the stack or duplicate it. The = Key The = key is used at the end of a mathematical operation to calculate the final result. For example, 1+2= returns a final result of 3. The = key, when pressed outside of a mathematical operation, also allows you to request a calculat
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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 I key 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 O one time cancels current number entries, mathematical o
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Basic Features For more information about storing and recalling numbers, refer to the section titled, Storing and Recalling Numbers in Chapter 2. The Cash Flow and Statistics menus share the same memory and are limited to a combined total of 50 memory slots. The number displayed with Memory refers to the number of remaining memory slots. When the cash flow or statistics items are displayed, a number also appears on the bottom line. This number indicates the number of memory slots used by the men
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Basic Features In this manual, diagrams called Menu Maps are included at the beginning of each section to assist you with navigating through the menus used for that section. For an example of a menu map, see Figure 7. Figure 7 The Menu Map for the Break-even Menu There are four types of menu items: 1. Read/write. Read/write menu items, such as Fixed in the Break-even menu shown above, are easily recognizable, because when they are selected, both the INPUT and small (=) annunciators are lit. When
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Mathematical Calculations 2 Mathematical Calculations Mathematical Functions Mathematical functions are located: On keys, such as, +-*/, etc. On shifted, or secondary functions, such as, :p In the Math menu, :s Number Entry and Display Numbers are entered by pressing: Numbered keys, 0-9 The decimal point . The } key The :w keys To correct a number entry, press the backspace key, {. Each press of { erases the last digit or symbol you entered. To enter a number in the display, press
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Mathematical Calculations Chain Mode Calculations in Chain mode are interpreted in the order in which they are entered. For example, entering the following numbers and operations as written from left to right 1+2*3= returns 9. See Figure 2. Figure 2 Calculation in Chain Mode Note: if you press an operator key, +-*/, after =, the calculation is continued using the currently displayed value. In Chain mode, if you wish to override the left to right order of entry, use parentheses () to prioritize o
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Mathematical Calculations 2 For example, key in 1+ 2 x 5 nPr2 in Algebraic mode by pressing: 1+2*5:b2:m=. The result is 241. Note: the calculator is limited to 12 pending operations. An operation is pending when it is waiting for the input of a number or the result of an operation of higher priority. Reverse Polish Notation (RPN) Mode To set the calculator in RPN mode, refer to the section titled, The Mode Menu: Setting Preferences in Chapter 1. In RPN mode, numbers are entered first, separated
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Mathematical Calculations When an operation is performed on the stack, addition (+) for instance, the calculator "pops" or moves the two numbers from the bottom levels (Levels 1 and 2) out of the stack, performs the operation, and "pushes" the results back into the stack. With the numbers entered into the stack as shown in Figure 3, pressing + changes the stack as shown in Figure 4. Note that when the numbers are "popped" out to add 23 and 41, Level 4 of the stack remains unchanged. -15 -15 12 6
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Mathematical Calculations Table 2-2 Last Number Keys Display Description Adds 1.23 and 56.123, then divides the sum by the +:d/ last number, 56.123. Returns results in the selected display format. For more complex problems requiring two or more operations, you do not need to enter parentheses to set operational priority. Key in numbers and operations inside the parentheses first, followed by those outside of the parentheses. If a problem has more than one set of parentheses, start by working wit
