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HP 39G/40G
GRAPHING CALCULATOR
USERS GUIDE
Version 1.1
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Contents Preface Manual conventions............................................................................... P-1 Notice .................................................................................................... P-2 1 Getting started On/off, cancel operations........................................................................1-1 The display .............................................................................................1-2 The keyboard.............................
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3 Function aplet About the Function aplet ........................................................................3-1 Getting started with the Function aplet.............................................3-1 Function aplet interactive analysis .........................................................3-8 Plotting a piecewise defined function example ..............................3-11 4 Parametric aplet About the Parametric aplet .....................................................................4
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9 Inference aplet About the Inference aplet .......................................................................9-1 Getting started with the Inference aplet............................................9-2 Importing Sample Statistics from the Statistics aplet .......................9-5 Hypothesis tests......................................................................................9-9 One–Sample Z–Test .........................................................................9-9 Two–Sample
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11 Variables and memory management Introduction ..........................................................................................11-1 Storing and recalling variables .............................................................11-2 The VARS menu ..................................................................................11-4 Memory Manager .................................................................................11-9 12 Matrices Introduction ................................
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15 Programming Introduction ..........................................................................................15-1 Program catalog ..............................................................................15-2 Creating and editing programs .............................................................15-4 Using programs ....................................................................................15-7 Working with programs.........................................................
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Reference information Regulatory information .........................................................................R-1 USA .................................................................................................R-1 Canada .............................................................................................R-1 LED safety.............................................................................................R-2 Warranty......................................................
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Preface The HP 39G/40G is a feature-rich graphing calculator. It is also a powerful mathematics learning tool. The HP 39G/40G is designed so that you can use it to explore mathematical functions and their properties. You can get more information on the HP 39G/40G from Hewlett-Packard’s Calculators web site. You can download customized aplets from the web site and load them onto your calculator. Customized aplets are special applications developed to perform certain functions, and to demo
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Notice This manual and any examples contained herein are provided as-is and are subject to change without notice. Except to the extent prohibited by law, Hewlett-Packard Company makes no express or implied warranty of any kind with regard to this manual and specifically disclaims the implied warranties and conditions of merchantaiblity and fitness for a particular purpose and Hewlett-Packard Company shall not be liable for any errors or for incidental or consequential damage in connectio
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1 Getting started On/off, cancel operations To turn on Press >21@ to turn on the calculator. To cancel When the calculator is on, the >21@ key cancels the current operation. To turn off Press >6+,)7@OFF to turn the calculator off. To save power, the calculator turns itself off after several minutes of inactivity. All stored and displayed information is saved. If you see the ((•)) annunciator or the Low Bat message, then the calculator needs fresh batteries. HOME HOME is the calculator’s hom
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The display To adjust the Simultaneously press >21@ and >@ (or >@) to increase (or decrease) the contrast. contrast To clear the • Press CANCEL to clear the edit line. display • Press >6+,)7@CLEAR to clear the edit line and the display history. Parts of the display Title History Edit line Menu key labels Menu key or soft key labels. The labels for the menu keys’ current meanings. 2?a 67 is the label for the first menu key in this picture. “Press ?a 672 ” means to press the first menu key,
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Annunciators. Annunciators are symbols that appear above the title bar and give you important status information. Annunciator Description Shift in effect for next keystroke. To cancel, press >6+,)7@ again. a Alpha in effect for next keystroke. To cancel, press >$/3+$@ again. ((•)) Low battery power. Busy. Data is being transferred via infrared or cable. The keyboard Menu keys Menu key labels Menu keys Aplet control Cursor keys keys Alpha key Shift key Enter key Getting started 1-3
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• On the calculator keyboard, the top row of keys are called menu keys. Their meanings depend on the context—that’s why their tops are blank. The menu keys are sometimes called “soft keys”. • The bottom line of the display shows the labels for the menu keys’ current meanings. Aplet control keys The aplet control keys are: Key Meaning >6<0%@ Displays the Symbolic view for the current aplet. See “Symbolic view” on page 1-15. >3/27@ Displays the Plot view for the current aplet. See “Plot
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Entry/Edit keys The entry and edit keys are: Key Meaning >21@ (CANCEL) Cancels the current operation if the calculator is on by pressing >21@. Pressing >6+,)7@, then OFF turns the calculator off. >6+,)7@ Accesses the function printed in blue above a key. >+20(@ Returns to the HOME view, for performing calculations. >$/3+$@ Accesses the alphabetical characters printed in orange below a key. Hold down to enter a string of characters. >(17(5@ Enters an input or executes an operation. In ca
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Shifted keystrokes There are two shift keys that you use to access the operations and characters printed above the keys:>6+,)7@ and >$/3+$@. Key Description >6+,)7@ Press the >6+,)7@ key to access the operations printed in blue above the keys. For instance, to access the Modes screen, press >6+,)7@, then press >+20(@. (MODES is labelled in blue above the >+20(@ key). You do not need to hold down >6+,)7@ when you press HOME. This action is depicted in this manual as “press >6+,)7@MODES.
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Math keys HOME (>+20(@) is the place to do calculations. Keyboard keys. The most common operations are available from the keyboard, such as the arithmetic (like >@) and trigonometric (like >6,1@) functions. Press >(17(5@ to complete the operation: >6+,)7@ 256>(17(5@ displays 16. . MATH menu. Press >0$7+@ to open the MATH menu. The MATH menu is a comprehensive list of math functions that do not appear on the keyboard. It also includes categories for all other functions and constants. T
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Menus A menu offers you a choice of items. Menus are displayed in one or two columns. •The _ arrow in the display means more items below. •The A_ arrow in the display means more items above. To search a menu • Press *e, or *k, to scroll through the list. If you press >6+,)7@*e, or >6+,)7@*k,, you’ll go all the way to the end or the beginning of the list. Highlight the item you want to select, then press 2.a (or >(17(5@). • If there are two columns, the left column shows general catego
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Input forms An input form shows several fields of information for you to examine and specify. After highlighting the field to edit, you can enter or edit a number (or expression). You can also select options from a list ( a 226 &+ ). Some input forms include items to check ( _ &+.a ). See below for an example of an input form. Reset input To reset a default field value in an input form, move the cursor to that field and press >'(/@. To reset all default field values in form values the in
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Setting Options (Continued) Number The number format mode you set is the Format number format used in both HOME and the current aplet. Standard. Full-precision display. Fixed. Displays results rounded to a number of decimal places. Example: 123.456789 becomes 123.46 in Fixed 2 format. Scientific. Displays results with an exponent, one digit to the left of the decimal point, and the specified number of decimal places. Example: 123.456789 becomes 1.23E2 in Scientific 2 format. Engineer
