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                        HP 39gs English.book  Page i  Wednesday, December 7, 2005  11:24 PM
HP 39gs graphing calculator
user's guide
Edition3
Part Number   F2223AA-90001                                                                                                                                                                                                                                                                                                                                                                   
                    
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                        title.fm  Page ii  Thursday, July 13, 2006  10:29 AM Notice REGISTER YOUR PRODUCT AT: www.register.hp.com THIS MANUAL AND ANY EXAMPLES CONTAINED HEREIN ARE  PROVIDED “AS IS” AND ARE SUBJECT TO CHANGE WITHOUT  NOTICE. HEWLETT-PACKARD COMPANY MAKES NO WAR- RANTY 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 CO. SHALL NOT BE LIABLE FOR ANY  ERRORS OR FOR INCI
                    
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                        EnterpriseTOC.fm  Page i  Wednesday, May 3, 2006  5:01 PM 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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                        EnterpriseTOC.fm  Page ii  Wednesday, May 3, 2006  5:01 PM 3 Function aplet About the Function aplet........................................................ 3-1 Getting started with the Function aplet................................ 3-1 Function aplet interactive analysis........................................... 3-9 Plotting a piecewise-defined function ................................ 3-12 4 Parametric aplet About the Parametric aplet .................................................... 4-1 G
                    
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                        EnterpriseTOC.fm  Page iii  Wednesday, May 3, 2006  5:01 PM Exploring the graph......................................................10-19 Calculating predicted values..........................................10-20 11 Inference aplet About the Inference aplet .....................................................11-1 Getting started with the Inference aplet .............................11-1 Importing sample statistics from the Statistics aplet ..............11-4 Hypothesis tests .................
                    
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                        EnterpriseTOC.fm  Page iv  Wednesday, May 3, 2006  5:01 PM Two-variable statistics................................................... 13-17 Symbolic functions ....................................................... 13-17 Test functions............................................................... 13-18 Trigonometry functions.................................................. 13-19 Symbolic calculations........................................................ 13-20 Finding derivatives.............
                    
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                        EnterpriseTOC.fm  Page v  Wednesday, May 3, 2006  5:01 PM Using programs ..................................................................18-7 Customizing an aplet...........................................................18-9 Aplet naming convention...............................................18-10 Example......................................................................18-10 Programming commands....................................................18-13 Aplet commands ....................
                    
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                        EnterpriseTOC.fm  Page vi  Wednesday, May 3, 2006  5:01 PM Polar aplet variables ........................................................ R-9 Sequence aplet variables................................................ R-10 Solve aplet variables ...................................................... R-11 Statistics aplet variables.................................................. R-12 MATH menu categories....................................................... R-13 Math functions.....................
                    
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                        HP 39gs English.book  Page 1  Wednesday, December 7, 2005  11:24 PM Preface The HP 39gs is a feature-rich graphing calculator. It is  also a powerful mathematics learning tool. The HP 39gs  is designed so that you can use it to explore mathematical  functions and their properties.  You can get more information on the HP 39gs 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  appli
                    
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                        Preface.fm  Page 2  Thursday, July 13, 2006  10:33 AM 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 merchantability  and fitness for a particular purpose and Hewlett-Packard  Company shall not be liable for any errors o
                    
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                        HP 39gs English.book  Page 1  Wednesday, December 7, 2005  11:24 PM 1 Getting started On/off, cancel operations To turn on Press  to turn on the calculator. To cancel When the calculator is on, the  key cancels the  current operation. To turn off Press 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 need
                    
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                        HP 39gs English.book  Page 2  Wednesday, December 7, 2005  11:24 PM The display To adjust the Simultaneously press  and  (or ) to increase (or  decrease) the contrast. contrast To clear the display • Press CANCEL to clear the edit line. •Press  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.  is the label for the first  menu key in this picture. “Pres
                    
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                        HP 39gs English.book  Page 3  Wednesday, December 7, 2005  11:24 PM 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  again. α Alpha in effect for next keystroke.  To cancel, press  again. ((•)) Low battery power.  Busy.  Data is being transferred via  infrared or cable. The keyboard Menu keys HP 39gs Graphing Calculator Menu Key Labels Menu Keys Cursor
                    
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                        HP 39gs English.book  Page 4  Wednesday, December 7, 2005  11:24 PM • 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  Displays the Symbolic view for the  current aplet. See “Symbolic view”  on page 1-16.  Dis
                    
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                        HP 39gs English.book  Page 5  Wednesday, December 7, 2005  11:24 PM Entry/Edit keys The entry and edit keys are: Key Meaning  Cancels the current operation if the  (CANCEL) calculator is on by pressing .  Pressing , then OFF turns the  calculator off. Accesses the function printed in blue  above a key. Returns to the HOME view, for  performing calculations. Accesses the alphabetical  characters printed in orange below  a key. Hold down to enter a string  of characters. Enters an input or execute
                    
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                        HP 39gs English.book  Page 6  Wednesday, December 7, 2005  11:24 PM Key Meaning  (Continued)  CHARS Displays a menu of all available  characters. To type one, use the  arrow keys to highlight it, and press  . To select multiple characters,  select each and press , then  press . Shifted keystrokes There are two shift keys that you use to access the  operations and characters printed above the keys:  and . Key Description  Press the  key to access the  operations printed in blue above the  keys. F
                    
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                        HP 39gs English.book  Page 7  Wednesday, December 7, 2005  11:24 PM HELPWITH The HP 39gs built-in help is available in HOME only. It  provides syntax help for built-in math functions.  Access the HELPWITH command by pressing   SYNTAX and then the math key for which you require  syntax help. Example Press  SYNTAX Note: Remove the left parenthesis from built-in  functions such as sine, cosine, and tangent before  invoking the HELPWITH command. Math keys HOME ( ) is the place to do calculations. Ke
                    
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                        HP 39gs English.book  Page 8  Wednesday, December 7, 2005  11:24 PM • Pressing  displays a menu of physical  constants from the fields of chemistry, physics,  and quantum mechanics. You can use these  constants in calculations. (See “Physical  constants” on page 13-25 for more information.) • Pressing  takes you to the beginning of the  MATH menu. See “Math functions by category” on page 13-2 for  details of the math functions. HINT When using the MATH menu, or any menu on the  hp 39gs, pressing
                    
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                        HP 39gs English.book  Page 9  Wednesday, December 7, 2005  11:24 PM • If there are two columns, the left column shows  general categories and the right column shows  specific contents within a category. Highlight a  general category in the left column, then highlight an  item in the right column. The list in the right column  changes when a different category is highlighted.  Press  or  when you have highlighted your  selection. • To speed-search a list, type the first letter of the word.  For e
                    
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                        HP 39gs English.book  Page 10  Wednesday, December 7, 2005  11:24 PM Mode settings You use the Modes input form to set the modes for HOME. HINT Although the numeric setting in Modes affects only  HOME, the angle setting controls HOME and the current  aplet. The angle setting selected in Modes is the angle  setting used in both HOME and current aplet. To further  configure an aplet, you use the SETUP keys (   and  ).  Press  MODES to access the HOME MODES input  form. Setting Options  Angle Angle