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Casio FX-7400G Plus Calculator

1. Chapter Getting Acquainted Read This First The symbols in this manual indicate the following messages Important notes AN Notes MA Reference pages P 000 Getting Acquainted Chapter 1 1 Using the Main Menu The main menu appears on the display whenever you turn on the calculator It con tains a number of icons that let you select the mode work area for the type of operation you want to perform You can also make the Main Menu appear at any time by pressing MEN The following explains the meaning of each icon Icon Meaning UH Use this mode for arithmetic calculations and func tion calculations ha f TAT Use this mode to perform single variable stand ard deviation and paired variable regression sta tistical calculations and to draw statistical graphs Use this mode for storing and editing numeric data S i fi GRAFH Use this mode to store graph functions and to draw graphs using the functions TAELE Use this mode to store functions to generate a numeric table of different solutions as the values assigned to variables in a function change and to draw graphs Use this mode to store programs in the program area and to run programs 7 a gi SONT Use this mode to adjust the contrast of the dis play HEH Use this mode to check how much memory is used and remaining to delete data from memory and to initialize reset the calcul
2. are described in each applicable section of this manual as they come up E Calculation Execution Screen Whenever the calculator is busy drawing a graph or executing a long complex calcu lation or program a black box W flashes in the upper right corner of the display This black box tells you that the calculator is performing an internal operation 6 Contrast Adjustment Adjust the contrast whenever objects on the display appear dim or difficult to see eTo display the contrast adjustment screen Highlight the CONT icon in the Main Menu and ne ee en ne ee then press fe CONTRAST BO LIGHT DARK Press to make the figures on the screen lighter or to make them darker After getting the contrast the way you want it press MENU to return to the main menu 11 Getting Acquainted Chapter 1 P 6 P 172 7 When you keep having problems If you keep having problems when you are trying to perform operations try the fol lowing before assuming that there is something wrong with the calculator E Get the Calculator Back to its Original Mode Settings In the Main Menu select the RUN icon and press Ex Press to display the Set Up Screen Highlight Angle and press F2 Rad Highlight Display and press F3 Norm to select the exponential display range Norm 1 or Norm 2 that you want to use PO NM 5 Now enter the correct mode and perform your calculation again monito
3. Up Screen 2 Use and to move the highlighting to Display 3 Press F3 Norm The exponential display range switches between Norm 1 and Norm 2 each time you perform the above operation There is no display indicator to show you which expo nential display range is currently in effect but you can always check it by seeing what results the following calculation produces ee 5 03 Norm 1 eres E Norm 2 All of the examples in this manual show calculation results using Norm 1 For full details about the Display see Selecting Value Display Modes eHow to interpret exponential format pee 1 ztle 1 2e indicates that the result is equivalent to 1 2 x 10 2 This means that you should move the decimal point in 1 2 twelve places to the right because the exponent is positive This results in the value 1 200 000 000 000 1 2E 3 1 2705 1 2e indicates that the result is equivalent to 1 2 x 10 This means that you should move the decimal point in 1 2 three places to the left because the exponent is nega tive This results in the value 0 0012 10 Getting Acquainted Chapter 1 E Special Display Formats This calculator uses special display formats to indicate fractions and sexagesimal values eFractions a aT S Indicates 456 1 eSexagesimal Values Seer Te drepi Indicates 12 34 56 78 e In addition to the above this calculator also uses other indicators or symbols which
4. amp Page ae Page Page Page PRGM 130 SHIFT OPTN 45 I VARS 3 AJ LOCK a 31 x 31 ALPHA 6 31 31 i 31 31 A 10 B ex c XT J45 a lnla r24 de G H 3y os FD 17 Page Page M N o 9 P Q R U v w Z SPACE eo T 0 C EP 30 Page 7 N 4 REPLAY Page 5S 3 L a 30 30 WJ E 21 Page gt aE o 7 14 60 4 Ils Ans 14 18 17 lt BY Getting Acquainted Chapter 1 quickly and easily 3 Key Markings Many of the calculator s keys are used to perform more than one function The func tions marked on the keyboard are color coded to help you find the one you need 10 B Function Key Operation log 10 B The following describes the color coding used for key markings Color Key Operation Orange Press and then the key to perform the marked function Red Press and then the key to perform the marked function 4 Selecting Modes E Using the Set Up Screen The first thing that appears when you enter a mode is the mode s set up screen which shows the current status of settings for the mode The following procedure shows how to change a set up eTo change a mode set up 1 Select the icon you want and press xe enter a mode and display its initial screen Here we will enter the RUN Mo
5. ator Getting Acquainted Chapter 1 eTo enter a mode Example To enter the RUN Mode from the Main Menu 1 Press NEN to display the Main Menu 2 Use and to move the highlighting to the RUN icon 3 Press to enter the RUN Mode STATS LIST pues hae E COHT JHE aC La e You can also enter a mode without highlighting an icon in the Main Menu by inputting the number marked in the lower right corner of the icon When you enter a mode up to four function key menu items appear at the bottom of the display Each menu item corresponds to the function key Fi F3 F3 F4 that is below the item Some function menus have multiple pages When this happens you should press to advance to the next menu page Example Menus Simp Trntykmdr LIST CAL GAS TAT AP ROE a a AA A fF Getting Acquainted Chapter 1 2 Key Table e3 E Ey LE Ey PRGM SET UP lt REPLAY gt Gar Gen Cs ecw _ G LOCK D wn C A m A A 10 B e C sinD cos E taniF Gr loa Cin sin cos tan x J eee ijle aa DEEN EDES Z SPACE T 0 Ge 6 BE Alpha Lock Normally once you press and then a key to input an alphabetic char acter the keyboard reverts to its primary functions immediately If you press and then ArH the keyboard locks in alpha input until you press again Getting Acquainted E eo E e E
6. de Getting Acquainted Chapter 1 2 Press to display the mode s set up e This set up screen is just one possible exam Anale Fa ple Actual set up screen contents will differ D i SP lax Hemi according to the mode you are in and that Sime fe Auto mode s current settings r Farm A F3 3 Use the and cursor keys to move the highlighting to the item whose setting you want to change 4 Press the function key Fi to F4 that is marked with the setting you want to make 5 After you are finished making any changes you want press to return to the initial screen of the mode E Set Up Screen Function Key Menus This section details the settings you can make using the function keys in the set up display Graph Function Type F Type Freee Bee Fi Y we Rectangular coordinate graphs Y Firm F2 Parm Parametric coordinate graphs Fi F3 Fi YS cases y gt f x inequality graph E3 Y lt a n y lt f x inequality graph Tr Prey r V2 runm Zz fx i li h E3 Y gt y2 fx negua ity grap nA A YE y S f x inequality graph Press to return to the previous menu e The setting you make for F Type determines the variable name that is input when you press KI Graph Draw Type D Type eee Tyre Cornet Fi Con Connection of points plot ted on graph con FQ Plot Plotting of points on graph cen without connection A F3 Getting Acquai
7. menu Other menus for set up Display Simply Frac are described in each applicable section of this manual as they come up Abbreviations STAT noiae Statistics PRGM isisi Program CONT isisisi Contrast MEM Memory 5 Display E About the Display Screen This calculator uses two types of display a text display and a graphic display The text display can show 13 columns and six lines of characters with the bottom line used for the function key menu while the graph display uses an area that measures 79 W x 47 H dots Text Display Graph Display Wee EL DRAM E About Menu Item Types This calculator uses certain conventions to indicate the type of result you can expect when you press a function key Next Menu Example Selecting displays a menu of list functions Command Input Example Selecting inputs the List command Getting Acquainted Chapter 1 P 27 Direct Command Execution Example DRAM Selecting Drain executes the DRAW command E Exponential Display The calculator normally displays values up to 10 digits long Values that exceed this limit are automatically converted to and displayed in exponential format You can specify one of two different ranges for automatic changeover to exponential display Norm 1 veces 10 2 0 01 gt x x 2 10 Norm 2 veces 10 0 000000001 gt x x 2 10 eTo change the exponential display range 1 Press to display the Set
8. nted Chapter 1 P 111 P 111 P 73 e Angle unit Angle Fi Deg Specifies degrees as aik Pale trac F2 Rad Specifies radians as default bes Rad Gra F3 Gra Specifies grads as default A fF E3 eStatistical Graph View Window Setting S Wind Fi Auto Automatic setting of view S Wind Auto window values for statisti cal graph drawing F2 Man Manual setting of view window values for statisti Aute Mari cal graph drawing Fi FQ Graph Function Display G Func Fi On Turns on display of function during graph drawing and G E arc Sr trace F2 Off Turns off display of function during graph drawing and on Loft trace E E3 eSimultaneous Graph Mode Simul G Fi On Turns on simultaneous graphing of all functions in memory F2 Off Simultaneous graphing off graphs drawn one by fon ore one Fi FQ eTable amp Graph Generation Settings Var Fi RANG Table generation and graph War Fangel drawing using numeric ta ble range E3 List1 7 z F List2 Table generation and graph FAMGILizta ListelLis ta Lists J drawing using list data 0 A A Getting Acquainted Chapter 1 pa e Fi List4 FQ List5 Table generation and graph F Liste drawing using list data isis a 0 aa A Press to return to the previous
9. ring the results on the display E Low Battery Message The low battery message appears while the main battery power is below a certain level whenever you press to turn power on or MEN to display the Main Menu or E OO i Low battery Se ee ee E ak at E a J About 3 seconds later ETAT LIST I L pues Mean E COHT JHE 4c Li If you continue using the calculator without replacing batteries power will automati cally turn off to protect memory contents Once this happens you will not be able to turn power back on and there is the danger that memory contents will be corrupted or lost entirely 12

Casio FX-7400G Plus Calculator

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