FX-570ES - Scientific calculator CASIO - Free user manual and instructions

USER MANUAL FX-570ES CASIO

About this Manual + The [MATH] mark indicates an example that uses Math format, wie he [LINE] mark indicates Linear format. For details about inputoutput formats, see “Specifying he Impu/ Output Forma”

• Keycap making indicate what a Key inputs or wat function it perlorms. ample: D, D. @. ©. &.&.ete + Pressing the Gr) or (1) key followed by a second key performs the altemate function of fhe second key. The alterate function is indicated by {he text printed above the key. Aternate function

sin ‘rD + The following shows what the different colors of the alternate function key text mean. Keycap function Key marking text is this color: _ |! means this: Press FJ and then the Key 10 access the applicable function. Press (AJ and inen the Key 10 inputie applicable variable, constant, or symbol Purple (or enciosed | Enter the CMPLX Mode to access 1e in purple brackets) _ | function: Green (or enclosed | Enter the BASE-N Mode 10 access he in green brackets)__ | function Yellow Red + The following shows an example of how an alternate function operation is represented in this Users Guide. Exmple: EG (sin D © Indicates the function that is accessed by the key operation (Œ) Gr) belore it. Note that this is not part fe actual key operation you perform.

+ The following shows an example of how a key operation to select an on-screen menu item is represented in this Users Guide. Example: (D (Setup) Indicates the menu item that is selected by the number Key operation (D) before it. Note that this is not part of ine actual key operation you perform. + The cursor key is marked th four arrous, indicating direction, as shown in the ilustration nearby.I his Users Guide, cursor Key operation is indicated as &, ©. ©, and ® + The displays and illustrations (such as key markings) shown in this Users Guide and îhe separate Appendix are for ilustrative purposes only, and may differ somewhat from the actual items they represent. + The contents of this manual are subject to change without notice. + Inno event shall CASIO Computer Co, Lid. be liable to anyone for special, collateral, incidental, or consequential damages in connection with or arising out of the purchase or use of this product and items that come with it. Moreover, CASIO Computer Co, Ltd. shall not be liable for any claim of any kind whatsoever by any other party arising out of he use of this product and the items that come with it M Using the Separate Appendix Wnenewer you see the symbol [Appendix] in is manual, it means you should reler to the separate Appendix. Example numbers (ike “<#021>" I is Users Guide refer 1 the corresponding example number in the Appendix, Speciÿlne angl unitin accordance win {he marks in the Appendix Specty Degree or ie ange un. Speciy Radian for he angle uni Ini zing the Calculato: Perlorm the following procedure when you want to initiale the aleulator and return the calculation mode and setup to their initial defaut settings. Note that his operation also ciears all data currently in caleulator memory. En @(CLR)@(AI)E) (ves) + For information about calculation modes and setup settings, see “Galeulation Modes and Caleulator Setup” + For information about memory, see “Using Caleulator Memory”.

Safety Precautions Be sure to read the following safety precautions before using this calculator. Keep this manual handy for later reference. A caution This symbol is used to indicate information that can result in personal injury or material damage if ignored. Battery + After removing the battery from the calculator, put it in a safe place where it wil not get into the hands of small children and accidentally swallowed. + Keepbatteries out of the reach of small children. I accidentally swallowed, consult with a physician immediately + Never charge the battery try to take the battery apart, or allow the battery to become shorted. Never expose the battery to direct heat or dispose of it by incineration. + Improperly using a battery can cause it lo leak and damage nearby items, and can create the risk of fire and personal injury. + Aays make sure that the battery positive @ and negative © ends are facing correctiy when you load it into the cälculator. + Remove the battery if you do not plan to use the calculator for long time. + Use on the type of battery specified for this calculator in this manual. Disposing of the Calculator + Never dispose of {he caleulator by buming it. Doing so can cause certain components to suddenly burst, creating the risk of fire and personal injury.

Handling Precautions + Be sure to press the (CH) key before using the calculator for the first time. + Even fthe caleulator is operating normal replace the battery at least once every to years. À dead batlery can Ieak, causing damage 10 and mallunction of the calculator. Never leave a dead battery in the calcultor. The battery that comes with this unit ischarges slighty during shipment and storage. Because of this, it may require replacement sooner than the normal expected battery life. + Low battery pouier can cause memory contents to become corrupted or lost completely. Always Keep written records of all important data. + Avoid'use and storage of the calculator in areas subjected to temperature extremes. Very low températures can cause sl display response, total failure of the display, and shortening of battery life. Also avoid leaving the caleultor in irectsunight near a window, near a heater or anpihere else I might be expose to very high temperatures. Heat can cause discoloraion or deformation of ine calculators case, and damage 1 itermalcrcuy. + Avoid use and storage of îhe calculator in areas subjected to large amounts of humidity and dust. Take care never to leave he calculator here 1 might be splashed by water or exposed Lo large amount of humiity or dust. Such conditions can damage itemal circuit. + Never drop the caleulator or otherwise subject i to strong impact. + Never twist or bend the calculator. Avoidcarrying the calculatorin the pocket o your ousers or ather fighting clothing were it might be subjected to Imisting or bending

• Never try to take the calculator apart. + Never press the keys of the calculator with a balipoint pen or other pointed object. + Use a soft, dry cloth Lo clean the exterior of he caleulator. Iihe caleultor becomes very di. wipe if wih a lot moistened in a weak solution of water and a id neutal household detergent. Wing out al excess liquid before wiping he calculator. Never use Aninner, benzens or other volatle agents to clean the caleullor Doing So can remove printed markings and can damage the case.

Before Using the Calculator M Removing the Hard Case Before using the calculator slide its hard case downwards to remove it and then aff ne hard case to the back of the caleulator as shown in the illustration below. M Turning Power On and Off + Press (to turn on he calculator. + Press (Br) RO(OFF) to turn off the calculator. M Adjusting Display Contrast ME (ETUP)© Œ(ACONT>) ‘This displays the contrast adjustment screen. Use @ and © to adjust display contrast. After he setting is the way you want, press CONTRAST LIEHT GERK tai Dei + You can also adjust contrast using @ and ® while the mode menu (which appears when you press (M) is on the display. Important! + Ifadjusting display contrast does not improve display readabilty, it probably means that battery power is low. Replace the battery. E-5

M About the play Your calculator has a 81-dot x 96-dot LCD screen. Example: ioutoressen —ÎPo1 (C2) tar, Caen reut—{ n M Display Indicators Sample Display CmPLX This indicator: | Mans this: The Keypad has been shiied by pressing te CF) Hg | key. The keypad will unshift and this indicator will disappear when you press a Key, The alpha input mode has been entered by pressing the (A key. The alpha input mode wil be exited EX | and this indicator wi disappear when you press a Key. M___| There is a value stored in independent memory The caleulator is standing by for Input of a variable STO | name to assign a value to the variable. This indicator appears after you press A Æ(STO) The calulator is standing by for input of a variable RCL | name to recall the variable’s value. This indicator appears after you press Æ) STAT__ | The calcurator is in ine STAT Mode. CMPLX_ | The caleuiator is in ne CMPLX Mode. MAT __ | The calculatoris in the MATRIX Mode. WCT ___ | The calculatoris in the VECTOR Mode D | Tnedefautangeuniis degrees. | The defaut angle uniis radians. | Tnedefautangie uniis grads. FIX__[ A fixed number of décimal places 15 in effect. SCI | A fixed number of significant digits Is in effect Math__| Main siyre 15 selected as ne mpuvoutput format Calculation history memory data s avallable and can YA | be replayed, orthere is more data above/below the current screen Disp | 1° display current shows an intermediae result of a mult-statement calculation. E-6

Important! + For a very complex calculation or some other type of calculation that takes a long time to execute, the display may show only the above indicators (without any value) wie performs the calculation internal Calculation Modes and Calculator Setup HE Calculation Modes Dar en fenp ve | euen expression TABLE Specifying the Calculation Mode (1) Press (to display the mode menu. (2) Press he number key that corresponds to the mode you want to select. + To select ie CMPLX Mode, for example, press (7) M Configuring the Calculator Setup Pressing ÆA)ŒA(SETUP) displays the setup menu, which you can use to control how the calculations are executed and displayed. The setup menu has to screens, which you can jump between using

69) © © (Nom) (D (Normmi)

M initializing the Calculation Mode and Other Settings Performing the following procedure initializes the calculation mode and other selup setings as shown below. 9 Œ(CLR)(D (Setup) Æ)(ves) This setting: Is initialized to this: Calculation Mode COMP InputOutput Format MIO Angle Unit Deg Display Digits Normt Fraction Display Format déc Complex Number Format a+bi Statistical Display OFF Decimal Point Dot + To cancel initiaization without doing anything, press FD(Cancel) instead of &) Values M inputting a Calculation Expression Using Standard Format Your caleulator lets you input calculation expressions just as 1ney are written. Then simply press the (] key to execute it. The calculator automaticaly judges the calculation priority séquence for adcion subtraction, muliplication, and division, functions, and parentheses. Example: 2 (5 + 4) 2 x (-3) = Lu aoeæeuoe|2(5+4)-2x-3 bb E) ” Inputting a Function with Parenthesis When you input any ofthe functions shown below, is automatically input with the open parenthesis {() character. Nexl you need 10 input he argument and he closing parenthesis ()) Sin(, cos. tan sin”(, cos” "(, tan” 1, sinh(, cosh(, tanh, sinh”1(, gosh{(, tanh”{(, logf, In, en, 10%, ” (, 7 (, Abs(, Pol(, Rec Ï( ddx(, E(, P( Q(, RQ arg(, Gonig(, Not(, Neg(, det(, Tn(, And E-10

Example: sin 30 = NE] S000e sin(6)

Pressing Œn inpuis “sin(. + Note that the input procedure is different if you want to use Math format. For more information, see “Inputting with Math Format. Omitting the Multiplication Sign You can omit he muliplication sign (+) in any ofthe following cases. + Before an open parentheses ((T ): 2 x (5 + 4) etc. + Belore a function vith parenthesis: 2 x sin(30), 2 x V_ (3), etc. + Belore a prefx symbol (excluding ihe minus sign): 2 x h123, etc + Belore a variable name, constant, or random number: 20xA,2x1,2xi, etc. Final Closed Parenthesis You can omit ane or more closed parentheses that come at he end of a calculation, immediately before the (=) key is pressed. For details, see “Omiting a Final Closed Parenihesis Displaying a Long Expression The display can show up lo 14 characters at a time. Inputting {ne 61h character causes {he expression Lo shift o the le. A this time, the < indicator appears to 1e left of the expression, indicating that itruns off the left side of he screen Input expression: 1111 + 2222 + 3388 + 444 Dispiayes ponton: |4222243338-d dd] Cursor + When the 4 indicator is displayed, you can scroll left and view ne hidden part by pressingine @ key. This wil cause the > indicator Lo appear to the right of ne expression. At this time, you can use the ® key to scroll back. Number of Input Characters (Bytes) + You can input up to 99 bytes of data for a single expression. Basicall, each Key operation uses up one byle. À function that requires two key operations to input (ke (RE) Gr (sin”*)) also uses. ny one byte. Note, however, (nat when you are inputing functions wih Malh format, each item you input uses up more {nan one byte. For more information, see “Inputing with Math Format. E-11

+ Normaly the input cursor appears as à straight vertical (Â) or horizontal (=) lashing line on ne display screen. When there are 10 or fewer bytes of input remaining in the current expression, the cursor changes shape to M to let you know. It the I cursor appears, terminale the expression at a convenient point and calculate the result M Correcting an Expression This section explains how to comect an expression as you are inputig it. The procedure you shouid use depends on whelher you have insert or ovenwrite selected as the input mode: About the Insert and Overwrite Input Modes With the insert mode, the displayed characters shit to the left to make room when you input a new character. With the overwrite mode, any new character you Input replaces the character at the current cursor position. The initial defaul input mode is insert. You can change to the overwrite mode when you need i + The cursor is a vertical flashing line (Î) when the insert mode is selected. The cursor is a horizontal flashing line (=) when the overwrite mode is selected + The initial default for Linear format input is the insert mode. You can switch to the overwrite mode by pressing F) ŒJ(INS). + With Math format, you can only use the insert mode. Pressing

6) Œ(INS) when the Math format is selected does not switch to

the overwrite mode. See “Incorporating a Value into a Function” for more information. + The caleulator automatically changes to the insert mode whenever you change the inpu/output format from Linear to Math Changing the Character or Function You Just Input Example: To correct the expression 369 x 13 so it becomes 369 x 12 [une] Donc lg œfsata * E-12

M Displaying the Location of an Error If an error message (ke “Math ERROR" or “Syntax ERROR") appears when you press Æ], press @ or ®. This will display the part of the calculation where 1he error occurred, with the cursor positioned at 1he error location. You can {hen make necessary corrections, Example: When you input 14 + 0 x 2= by mistake instead of 14 + 10x2= Use he insert mode for the following operation.

You can also exit ie error screen by pressing F3, which clears the calculation. M inputting with Math Format When inputing with Math format, you can input and display fractions and some functions using ne same format as hey appear in your textbook Important! + Certain types of expressions can cause the height of a calculation formula to be greater than one display line. The maximum allowable height of a calculation formula is two display screens (81 dots x 2) Further input will become impossible if the height of the calculation you are inputing exceeds the allowable limit. + Nesting of functions and parentheses is allowed. Further input will become impossible if you nest 100 many functions and/or parentheses. If this happens, divide the calculation into multiple parts and caleulate each part separately. E-14

Functions and Symbols Supported for Math Format Input + The “Bytes” column shows the number of bytes of memory that are used up by input Function/Symbol Key Operation _| Bytes improper Fraction E 9 Mixed Fraction MECS) E logla.P) (Logarinm) E] 6 OAx (Power of 10) GOT 4 x (Power are) En 0e) 4 Square Root 4 Cube Root ECS) D Square, Cube as) 4 Reciprocal EF] 5 Power 4 Power Root CEE] o Integral E Derivate EE) E E Calculation EEE) E Absolute Value En Em (Ab) 4 Parentheses Do ï Math Format Input Examples + The following operations are al periormed while Math format is selected + Pay close attention 10 the location and size of he cursor on {he display when you input using Math format. Example 1: To input 29 + 1 En CERIPE Col] Example 2: To input 1 + V2 +3 [mat] meczlLp esolnpa E-15

Eempe : Tomu( à 2x2 [Marx] PEUT onæeeucesen|(1+È)**x2 HE) s + When you press © and oblain a calculation result using Main format, part of the expression you input can be cut off as shown in ne Example 3 screen shot. If you need to view the entire input expression again, press GE and then press ©. Incorporating a Value into a Function When using Maïh format, you can incorporale part of an input expression (a value, an expression within parentheses, el. into a function. Example: To incorporate the expression inside of the parentheses of 1 + (24 3) + 4 into the V function [mat]

1HC2+5)+4 Move the cursor to here. mans 14287 ‘This changes he shape of he eursor as shown here.

140252) +4 This incorparates the expression in the parentheses int the function +’ + Ifthe cursor is located left of a particular value or fraction (instead of an open parentheses), that value or fraction will be incorporated into the function specified here. + Ifthe cursor is located left of function, the entire function is incorporated inte the function specified here. ‘The following examples show the other functions that can be used in the above procedure, and the required key operations to use them. Original Expression: {-#]{ 243 )+4 Function [Key Operation] Resulting Expression Fraction 142882 44 1og(a.b) @ 1+lognt(2+3) +4 Power Root ME) 140255 +4 E-16

Original Expression: {-#{{+3)+4 Function [Key Operation] Resulting Expression itegal æ 1-[Miciaraes pee [man | 1003); 0t Ecaruaten [DE | 14 8 QG2))+4

s into the following functions. a), © Ep (Abs) You can also incorporate val € Ep (10°), Œ(e'), Displaying Calculation Results in a Form that Includes 2, 7, etc. (Irrational Number Form) Wnen"MthlO"is selected for the inputoutput format, you can specify whether calculation results should be displayed in a form that includes expressions like V2 and x (irational number form) + Pressing ©) after inputing a calculation displays the result using irational number form + Pressing Œ) © after inputting a calculation displays the result using décimal values; Note + When “LinelO” is selected for the input/output format, calculation results are always displayed using decimal values (no irrational number form) regardless of whether you press © or 9) © + form (form that includes x within irational number display) display conditions are the same as those for S-D conversion. For details, see “Using S-D Transformation”. Example 1: 2 +8 = 312 BICLISIOIE] 2 SDS E

+ The following are the calculations for which V form (form that includes Ÿ_ within irrational number display) results can be displayed. Aime caler of values aquere mode Ca) b. Tigonometrc function calculations c: Complex number Abs calculations. d.CMPLX Mode polar coordinate display (r 2 @) ‘The following are the input value ranges for which V” form is always used for display of trigonometric calculation results. True Range angle uni | anglevauemput | "or Form eting Calculation Result Deg Units of 15° h1<9x 107 Rad Muhiples of 5 rradians Lx < 20 Ga | munpeso Sgue | Ki<ton Calculation results may be displayed in decimal form for input values outside of the above ranges. M V7 Form Calculation Range Note Wen perlorming complex number calculations in the CMPLX Mode, the lolowing conditions appiy respectively lo both the real part and the imaginary part Results that include square root symbols can have up to two terms: {an integer term s also counted as a term) V° form calculation results use display formats like those shown below è £avB, +44 avt, +0 sde

‘The following shows the range for each of the coerficients (a, b, €, d, 1 £a < 100, 1 <b < 1000, 1 £ € < 100 0<d< 100,0 £ e < 1000, 1 <f< 100 Example decimal form 2x(8-2V5)=6-418 tom 23 x (5 2V3) = 35.32566285 decimal form 15-468) 10V2 + 15 x 8V8 = 45V3 + 10V2 tom 18 x (10VZ + V3 ) = 290.0748207 decimal form V3 + 1502) V2+ V3 + V8 = a+ 312 tom BREL -5506754118 décimal form ‘The underined areas in the above examples indicate what caused decimal form to be used. Reasons why the results of the examples are displayed in decimal form - Value outside of the allowable range - More than two terms in he calculation result + Calculation results displayed in + form are reduced to a common denominator. avb ,dve mn a vb +d'Ve ce = + c' is the least common mulliple of c and f. + Since calculation results are reduced to à common denominator, they are displayed in Ÿ” form even if coefficients (a’, c’, and d') are outside îhe corresponding ranges of coefficients (4, c, and d). V8 V2 108 + 1102 Example: À , 2. Ion m0 10 + The results displayed in decimal form even when any intermeciate result has three or more terms. Example: (1 + V2 + V8)(1 - 2 V3) = -8.898079486 E-19 4-2V6)

+ Ifaterm is encountered during the calculation cannot be displayed 2 a root (V. ) form or a fraction, the calculation result is displayed in decimal form. Example: 1093 + V2 = 1.891334817 Basic Calcula ns {COMP) This section explains hou lo perform arithmelie faction, percent. and sexagesimal calculations, Alcalculations in {his section are perfommedinthe COMP Mode CO). M Arithmetic Calculations Use the Œ, ©. @. and Œ) keys to perlorm arithmeti calculations. Example: 7 x 8-4 x 5-36 acccnee|"$?5

+ The caleulator automatically judges the calculation priority sequence. For more information, see “Calculation Priority Sequence” Number of Decimal Places and Number of Significant Digits You can specily a fixed number of decimal places and significant digits for the calculation result. Example: 1 + 6= [NE] Initial defauit setting (Normt)

Omitting a Final Closed Parenthesis You can omit any closed parenthesis ()) immediately preceding operation of he (Æ] key at the end of à calculation This is true only in the case of Linear format. Example: (2 + 3) x (4-1

M Fraction Calculations How you should input fractions depends on the input/output format that is currently selected. proper Frelon] — Med resien ain 2+ Format (*#HD®D©D) Linear INursérator Denominator| Integer Part Denominator Format Numerator (Q®®) ee]:16)] + Under initial defaut settings, fractions are displayed as improper fractions. + Fraction calculation results are always reduced before being displayed. Lip2cant <#002> 31 + 12-411 (praction Display Format: abic) atta tnt P )

+ the total number of digis used for a mixed fraction (including integer, numerator, denominator, and separator symbols)is greater {han 10, the value is automatically displayed in decimal format. + The result of a calculation {hat involves both fraction and decimal values is displayed in decimal format. Switching between Improper Fraction and Mixed Fraction Format à Pressing the Em) E9( 2-2 <> À.) key toggies the display fraction between mixed fraction and improper fraction forma. E-21

hing between Fraction and Decimal Format ge ‘| se ° LE] 32 + The format ofthe fraction depends on the currently selected fraction display format setting (improper fraction or mixed fraction). + You cannot switch from decimal format to mixed fraction format if he total number of digits used in the mixed fraction (including integer, numerator, denominator, and separator symbols) Is greater than 10. + For details about the 63 key, see “Using S-D Transformation”. M Percent Calculations Inputing a value and pressing become a percent. Appendix <#003> 2% = 0.02

2) causes he input value to

<#004> 150 x 20% = 30 <#005> Calculate what percentage of 880 is 660. (75%) <#006> Increase 2500 by 15%. (2875) <#007> Discount 3500 by 25%. (2625) <#008> Discount the sum of 168, 98, and 734 by 20%. (800) <#009> 11300 grams are added to a test sample original weighing 600 grams, what is the percentage increase in weight? (160%) <#010> Whatis the percentage change when a value is increased from 40 to 487 How about to 487 15%, 20%) M Degree, Minute, Second (Sexagesimal) Calculations You can periorm calculations using sexagesimal values, and convert values between sexagesimal and decimal. Inputting Sexagesimal Values The following is he syntax for inputing a sexagesimal value. {Degrees) fr3 (Minutes) fr (Seconds) fr} Appendix | <#011> Input 2°0‘30. + Note that you must always input something for the degrees and minutes, even if they are zero. E-22

Sexagesimal Calculations + Performing the following types of sexagesimal calculations produces a sexagesimal result = Addition or subtraction of two sexagesimal values = Multiplication or division of a sexagesimal value and a decimal value <#012> 2°20 "20" + 3930" = 30/00" Converting Values between Sexagesimal and Decimal Pressing F3 while a calculation result is displayed toggles the value between sexagesimal and decimal <#013> Convert 2.255 toits sexagesimal equivalent Using Multi-statements in Calculations You can use the colon character (:) to connect two or more expressions and execute them in sequence from left to right when you press Example: To create a muli-statement that performs the following two calculations: 3 + 3 and 3 x 3 EE casse 48: 9x8

nn: Disp' indicate his an intemmediateresut of a mu statement

Using Calculation History Memory and Replay Calculation history memory maintains a record of each calculation expression you input and execute, and is resul. Modes Ihal support calculation History memory: COMP (09 (1), CMPLX (9 (2), BASE-N (x) (0) Recalling Calculation History Memory Contents Press @ 10 back-step inrough calculation history memory contents. Calculation history memory shows both caleulation expressions and results. Example: [ONE] 5 5 De0e|#3 BEBE) 6 2+2

+ Note that calculation history memory contents are cleared whenever you turn of the caleulato, press the (y) key, change to the calculation mode or {he inputeeutput format, or perorm any reset operation + Galeulation history memory is limited. When the calculation you are performing causes calculation history memory to become ll the oldest calculation is deleted automatically to make room for the new calculation Replay Function While 2 calculation result is on the display, you can press GS and then @ or ® to edit the expression you used for ne previous caleulation. If you are using Linear forma, you can display the expression by pressing @ or ®, wihout pressing (fist.

Using Calculator Memor: Memory Name Description Answer Memory | Stores ne last calculation result obtaines. Calculation resulls can be added 10 or sub- Independent | tracted from independent memory. The “M Memory display indicator indicates data in independent memory. Variables Six variables named À, B, C, D, X, and can be used for storage of individual values. This section uses the COMP Mode ((Æ9 (1)) to demonstrate how you can use memory. MH Answer Memory (Ans) Answer Memory Overview + Answer Memory contents are updated whenever you execute à calculation using any one of the lolowing keys: ©, ED ©. @. ÆMIŒ(M-, ©, 7 Œ(STO). Answer Memory can hold up to 15 digits. + Answer Memory contents are not change if an error oceurs during the current calculation + Answer Memory contents are maintained even if yeu press ne Œ3 key. change the calculation mode, or tu of the calcultor. + fa CMPLX Mode calculation produces a complex number result, both the real part and imaginary par are stored in Answer Memory. In this case, however, the imaginary part wi be cleared from Answer Memory i you change 10 another calculation mode. Using Answer Memory to Perform a Series of Calculations Example: To divide ine result of 3 x 4 by 30 [ONE] 5: BIO) (Continuing) © © ©

Pressing Œ] automatically inputs Ans" command. + With the above procedure, you need to perform the second calculation immediately after the first one. If you need to recall Answer Memory contents after pressing (3, press the G) key. E-25

Inputting Answer Memory Contents into an Expression Example: To perform he calculations shown below 123 + 456 = 579 789-679 = 210

Fe ooceccwe)| 2456 Er | coese 789-Âns

M Independent Memory (M) You can add calculation results to or subtract results from independent memory. The “M” appears on the display when independent memory contains a value. Independent Memory Overview + The following is a summary of the different operations you can perform using independent memory To do this: Perform this Key operation: Add the displayed value or result of the expression to Œ independent memory Subiractine displayed value or result ofthe expression from | EA)Œ(M-) independent memory Recall current independent memory contents ŒEM + You can also insert the M variable into a calculation, which tells the calculator t use the current independent memory contents at {at location. The following is tne key operation or inserting the M variable. mEM + The “M indicator appears in ie upper let of ihe display when {ere is any value olher than zero stored in independent memory. + Independent memory contents are maintained even if you press ie E3 key change the calculation mode, or turn offihe calculator. E-26

Calculation Examples Using Independent Memory + Ifthe “NW indicator is on the display, perform the procedure under Glearing Independent Memory” before performing this example. Example: 23 +9 - 32 Boo) 53-6-47 B8EE# -45x2= 90 29+3- 38 (Total) 22 Clearing Independent Memory Press (0) GA) Æ(STO)E. This clears independent memory and causes the “M” indicalor 1o disappear from the display. M Variables (A, B, C, D, X,Y) Variable Overview + Youcan assign a specific value or a calculation resul to a variable Example: To assign the result of 3 + 5 to variable A GeBBma(soE) + Use the following procedure when you want to check the contents of a variable. Example: To recall ne contents of variable A + The following shows how you can include variables inside of an expression. Example: To multiply the contents of variable À by the contents of variable B BOAMmEEBE + Variable contents are maintained even if you press he change the calculation mode, or turn off the calculator. <ois> Clearing the Contents of a Specific Variable Press (9) 6) ŒI(STO) and inen press the key for {ne name of ne variable whose contents you want to clear. To clear the contents of variable À, for example, press (9) Gi) f(STO) (A). M Ciearing the Contents of All Memories Use the following procedure to clear the contents of Answer Memory, independent memory, and al of ne variables. Press 6) (CLR) (Memory) ® (Vs). + To cancel the clear operation wilhout doing anything, press (Cancel) instead of © E-27

The CALC feature lets you input à calculation expression Inat contains variables, and Ihen assign values Lo the variables and perform the calculation: You can use CALC in ine COMP Mode (Œ (D) and in he CMPLX Mode (659 (D). M Expressions Supported by CALC ‘The folowing describes the 1ypes of expressions that can be used with CALC. + Expressions that contain variables Example: 2X + 8Y, 5B + 3i, 2AX + 3BY + C + Mutti-statements Example: X4Y :X (C4 Y) + Expressions with a single variable on the left Example: (variable) = {expression} ‘The expression on the right of the equals sign (input using A Œ(-)) can contain variables. Example: Y = 2X, A = X2 + X +3 M Example Calculation Using CALC ‘To start a CALC operation after inputting an expression, press 1he Eu key. Example: Æ onsops " 5 & 7 Prompts for input of a value for A. Current value of À 5 ns Sxf

+ To exit CALG, press F3 + Ifhe expression you are using contains more than one variable, an input prompt appears for each one. <#016> Calculate an +1 = an + 2 (at = 1) as he value of an changes from 22 lo a5. (Results: 22 = 3, a3 = 7, 24 = 13. 25-21) “1 Assigns 1 to at “2 Assigns 1 ton. “8. Value of æ2 “4 Acsigns value Lo 22. *$ Assigns 2 ton. “6 Value of a3 +7 Value of a4 “8 Value of a5 Using SOLVE (coMP) SOLVE uses Neurton's Method of approximation to solve an equation [Mu can use SOLVE in the COMP Mode (5 (D) on. | M Rules Governing Equations when Using SOLVE + You can use the following types of syntax for the solution variable. Example: Y = X + 5, Y (Solves for Y): XB = C + D, B (Solves for B.) The following shows the syntax for the log function. Y=Xxlog(2 — (Wnenthe variable specication” X"is omited, the equation Y = X x logso2 is soived for X.) Y=Xxlog(2.Y | (Wenthe variable speciication”, Vis included, the equation Y = X x logic? is soived for Ÿ) Y=Xxlog(2.Y) (Wen the variable specication = X"is omited, the equation Y = X x logeY is soIed for X) + Uniess you spacify ofhemnise, an equation is soived for X Exemple: V2 X + 5, X= sin(M), X + 3 XY + C (Treated as XY + C = 0.) + SOLVE cannot be used to solve an equation {hat contains an integral, derivative, X{ function, Pol( function, Rec function, or muli-statement E29

+ An error (Variable ERROR) occurs when the solution variable is not included in the expression being solved. M Example SOLVE Operation Example: To solve y = a? + b for x when y = 0, a = 1, and [MATH] © ©) (DA) © 0%) © © 3 C3 (8) #0®0%

d'éfaetose LR: Solution Screen + To interrupt an ongoing SOLVE operation, press F3 Precautions when Using SOLVE + SOLVE may not be able to obtain a solution because of the initial value (assumed value) of the solution variable. this happens, try changing he initial value of the solution variable. E-30

+ SOLVE may not be able to determine the correct solution, even when one exists. + SOLVE uses Newton's Method, so even if there are multiple solutions, only one of them wil be returned. + Newton's Method can have problems obtaining solutions for the following types of functions. A periodic function (y = sin(x), etc.) - A function whose graph includes a steep slope Q=eX, y =tix, ete) - À discontinuous function (} Solution Screen Contents Input equation VA ete)

RER, X 1-HH21868€ — Solution Solution variable —

{left side) — (right side form resuit + The “left side) (right side) form result shows the result when the obtained solution is assigned ta the solution variable. The closer this value is to zero, the higher is the precision of the obtained solution. Continue Screen SOLVE perlorms convergence a preset number of times. Hit cannot find a solution, displays à confirmation screen that shows “Continue: \ asking you want to continue. Press () to continue or Ed to cancel ihe SOLVE operation. <#017> Soe y =x2— x + 1 forxwhen y =8, 7, 13, and21. (Solutions: FAR Lea ee Le A on “1 Assigns 3 t0Y. “2 Assigns an initial value of 1 10 X. E-31

Function Calculations “This section explains how to use the caleulators buil-in functions. The functions available to you depends on 1e calculation mode you are in. The explanations in this section are mainly about he functions that are available in all calculation modes. AI of the examples in this section show operation in {he COMP Mode D). + Gertain function calculations may take some time to display calculation results. Before perlorming an operation, be sure to wait until execution of the current operation is complete You can interrupt an ongoing operation by pressing B3 M Pi (x) and Natural Logarithm Base e You can input pi (m) or natural logarithm base € into a calculation The following shows the required key operations and the values his caleulator uses for pi (mo) and 2 1 = 8.14159265358980 (GE) ED) (r)} € = 2.71828182845904 (A E)(c)) + You can use x and e in any calculation mode except for BASE-N. M Trigonometric and Inverse Trigonometric Functions + Tigonomeric and inverse irigonomerc functions can be used in the COMP. STAT, EQN, MATRIX, TABLE, and VECTOR calculation modes. They can also be used in 1e CMPLX Mode, as long as complex numbers are not used for their arguments. + The angle unit required by iigonometre and inverse irigonometrie functions is one specilied as the calculators delaul angle unit Belore performing a calculation, be sure to speciy the default angle uni you want to use. See “Speaiying the Delault Angle Unit for more information <H018> sin 30 = 0.5, sin-10. M Hyperbolic and Inverse Hyperbolic Functions Hyperboli and inverse hyperboli functions can be usedin the same modes as the trigonometric functions. Pressing the G9) key displays a menu of functions. Press the number Key that corresponds lo the function you want to input. ndix] <4019> sinh 1= 1.175201 194, cosh! 1 = 0 pendi '

Appendix <H020> cos (x radians) = 1, cos (100 grads) = 0 <Ho21> cos” (-1) = 180 cost (1 M Exponential Functions and Logarithmic Functions + Exponential and logarihmie functions can be used in the same modes as he irigonometric functions. + For the logarthmic function “logl, you can specify base m using the syntax “og (m, n)". 1 you input only a single value, a base of 10 is used for 1he calculation + “InC'is a natural logarithm function wiih base 2 + You can also use 1he En) key when inputing an expression with 1e form of “logmn” while using Math format, For deals, see [APpendix] <i022>. Note int you mustinput he base (base m) when using he ED key for input. <H023> to <#025> “TA base of 10 (common logarithm) is used if no base is specified. E-33

EH Power Functions and Power Root Functions + Powerfunctions and power root functions can be usediin the COMP, STAT, EON, MATRIX, TABLE, and VECTOR calculation modes. + The X2, XE, X-! functions can be used in complex number calculations in the CMPLX Mode, and complex number arguments are supported + The X®, 1, SVT NT functions can be used in the CMPLX Mode, as long as complex numbers are not used as their arguments. <#026> 10 <#030> M Integration Calculations This calculator periorms integration using he Gauss-Kronrod method of numerical integration. JC, a, b, tol) fa}: Function of X (AIl non-X variables are treated as constants.) a: Integration interval lower limit b: Integration interval upper limit tol: Tolerance range (input/output format: Linear) + You can omit specifiation of the tolerance range. À default value of 1 x 105 is used when you do. + Ï( didx(, Pol(, Rec, and X( cannotbe used within x), 4, b, or tol. + Integration calculations can be performed in {he COMP Mode on). + The integration result will be negative when f{x) < O within an integration interval that conforms with a & x < D. Exemple: (0.5X2 — 2, 2, 2) = -5.333338333 + À “Time Ouf error oceurs when an integration calculation ends without he ending condition being fufled. + When performing an integration calculation invalving rigonometric functions, specily Rad as the caleulators default angle uni. + Integration calculations can take considerable time to complete. + A smaller 1ol value provides better precision, but it also causes the calculation to take more time. Specify a rol value that is 1 x 10714 or greater. + You cannot input a rol value when using Math format. + There may be large error in obtained integration values and errors may oceur due to he type of function beingitegraled, the presence of positive and negative values in the integration interval, or the interval + Pressing GS vil interrupt an ongoing integration calculation. E-34

Tips on Improving Integration Value Accuracy + When a periodic function or integration interval results in positive and negative f(x) function values Periorm separate integrations for each cycle, or for the positive part and the negative part, and then combine the result. re]

Î fox [ gode + (flood Positive Part Negative Part {S Positive) (S Negaïive) + When integration values fluctuate widely due to minute shift in the integration interval Divide the integration interval into multiple parts (in a way that breaks areas of wide fluctuation into small parts), perform integration on each part, and then combine {he results. re) [ou [ro + [Pros : 4j. foddx Cr] <#031> J{in(x) 1, e)

cause I( Le, 5 o10 {ol specification omitted.) E-35

M Differential Calculations Your calculator performs differential calculations by approximating the derivalive based on centered diflerence approximation. did fu, a, tol) fa}: Function of X (Al non-X variables are treated as constants.) a: Input a value to specify the point for which the derivative shouid be obtained (differential point) Lol: Tolerance range (nputoutput format: Linear) + You can omit speciication of he tolerance range. À default value of 1 x 10-l0is used when you do. + ÏQ did, Pol, Rec(, and X{ cannot be used within fx), a, or to. + Differential calculations can be performed in the COMP Mode only. + When performing a differential calculation involving trigonometric functions, specify Rad as the calculators defaut angle unit + A “Time Out” error occurs when à differential calculation ends without the ending condition being fufiled. + A smaller ro! value provides better precision, but i also causes the calculation to take more time. Specify a ro! value that is 1 x 10714 or greater. + You cannot input a ro value when using Math format. + Inaccurate results and errors can be caused by the following - discontinuous points in + values extreme changes in x values - inclusion of the local maximum point and local minimum point in x values - inclusion of the inflection point in x values - inclusion of undifferentiable points in x values - differential calculation results approaching zero + Pressing (3 wil interrupt an ongoing differential calculation. <#033> Determine, NC when fx) in) {ol specification omitted.)

<tosé> LE 8r+2, 2, 109 27 E-36

M2 Calculations With X{, you can obtain the sum of an input fx) expression for à speciic range. Ÿ calculations are performed using the following formula. EU), a, b) = fa) + Ja + 1) + + AD) fa}: Function of X (Al non-X variables are treated as constants.) a: Calculation range start point bi Calculation range end point + a and b are integers in the range of -1 x 1010 < a £ b < + The calculation step is fixed at 1 + ÏC dédx(, Pol(, Rec, and X{ cannot be used within f(x), a, or b. + Pressing GS wil interrupt an ongoing E calculation. [Aerendix] <4035> 2 (04 1,1,91-20 MB Rectangular-Polar Coordinate Conversion x % Pa) Péri Tr El oi ES Rectangular Polar Coordinates Goordinates (Rec) (Pol) + Goordinate conversion can be performed in the COMP, STAT, MATRIX, and VECTOR calculation modes. Converting to Polar Coordinates (Pol) Pol(X, Y)… X: Species ihe rectangular coordinate X value Y: Species the rectangular coordinate Y value + Galeulation result Dis displayed in the range of-180° < ® & 180° + Caleulation resul Dis displayed using the calculators default angle unit. + Calculation result r is assigned to variable X, while Dis assigned tY. Converting to Rectangular Coordinates (Rec) Rec{:@ r: Specifis r value of polar coordinate 9: Species @ value of polar coordinate + Input value Bis treated as an angle value, in accordance with the calculators default angle unit setting + Galculation result x is assigned to variable X, while y is assigned tov. E-37

+ lfyou perorm coordinate conversioninside of an expression instead of a stand-alone operation, the calculation is performed using only the first value (either the value or the X-value) produced by ne conversion. Example: Pol (V2, V2) + 5 = 24 527 <H036> to <#037> M Other Functions This section explains how to use the functions shoun below ABs( Rand, Pr, nC7, And + These functions can be used in he same modes as the trigonometic functions. In adcition, the Abs( and Rnd( functions can be used in complex number calculations in te CMPLX Mode. Factorial (!) “This function obtains the factorials of a value that is zero or a positive integer. 038» (54 2) 40820 Absolute Value Calculation (Abs) When you are performing à real number caleulation, this function Simply obtains the absolute value. <#080> Abe (2-7125 Random Number (Ran#) This function generates a 3-digit pseudo random number thatis less than <#040> Generale three 3-digi random numbers. The random 3 digt decimal values are converted to 3-digit integer values by muliping by 1000. Note that {he values shown here are examples only. Values actually generated by your calculator wil be difierent. Permutation (nPr) and Combination (Cr) These functions make it possible to perlorm permutation and combination calculations. n and r must be integers in the range of 05 r< n < 1 x 1010. <#041> How many four-person permutations and combinations are possible for a group of 10 people? E-38

(Species three decimal places.)

M Practical Examples <#042> [i(sinX + cosX)'aX = x {tol: Not specified) <#048> Confirm that the two sides of the following equation are equal

Transforming Displayed Values You can use the procedures in this section to transform a displayed value 10 engineering notation, or o transform between standard form and decimal form. M Using Engineering Notation À simple key operation transforme a displayed value to engineering notation <H044> Transiorn he value 1,234 0 enginering notation, shifing the decimal pont to fe right <048> Transiorm the value 123 10 enginering notation, shiting the decimal point to te left M Using S-D Transformation You can use S-D transformation lo transform a value between its decimal (D) form and its standard (S) form (fraction, mo. Formats Supported for S-D Transformation S-D transformation can be used to transform a displayed decimal calculation result 10 one of the forms described below. Perlorming S-D transformation again convert back 0 the original decimal value. Note + When you transform from decimal form to standard form, ine caleulator automatically decides 1he standard form to use. You cannot speci the standard form Fraction: The current fraction display format setting determines whether the result is an improper fraction or mixed fraction E-40

= “The following are the x forms ihat are supported. “This is true only in the case of Maih format. nr (is an miteger) An o7 ab (depending on fraction display format €" setting) + Transformation to a fractional x form Is limited to inverse trigonometric function results and values that are normally expressed in radians. + After obtaining a calculation resut in Ÿ” form, you can convert it to decimal form by pressing the F3 key. When the original calculation resut is in decimal form, it cannot be converted to +” form. Examples of S-D Transformation Note that S-D transformation can take some time to perform. Example: Fraction > Decimal [MaïH] FE. 5 mm] (HIBIQIIE]

+ Each press of ine F3 key toggles betneen the two forms. e 4.8393333333 e È <#046> x Fraction —> Decimal <#047> Ÿ_ —> Decimal Complex Number Calculations (CMPLX) Your calculator can perform the following complex number calculations. + Addition, subtraction, multiplication, division + Argument and absolute value calculations + Reciprocal, square and cube calculations + Gonjugate complex number calculations Al calculations in inis section are performed in the CMPLX Mode (D). [Rppendix] <ho48> (1 + ai) + (2 E-41

M Inputting Complex Numbers + Inthe CMPLX Mode, the 9 key changes function to become an imaginary number i input key. In this section, the Ed key is referred to as the (TJ key.Use the (TJ key when inputting a complex number ofthe format a + bi. The key operation below shows how to input 2 + Gi, for example. 2800 #a + You can also input complex numbers using polar coordinate format {x 2 8). The key operation below shows how to input 5 Z 80, for example. BDM0 (20 015,341 eee + The angle unit for argument 8 input and result display is the calculators default angle unit. M Calculation Result Display Format Your calculator can display complex number calculation results in rectangular coordinate or polar coordinate format. You can select the coordinate format by configuring the calculators selup. For more information, see “Specifying the Complex Number Display Forma. Examples of Calculation Results Using Rectangular Coordinate Format (a + bi) Example 1: 2 x (V3 + à) = 243 4 2i = 9,464101615 + 2i CAR] RENE auneneænoe|?* (4) 2 +2 + With Linear format, the real part and imaginary part are shown in two different lines. Example 2: 1245-14 {Angie Unit Deg) soecwmeews|"245 E-42

+ With Linear format, the absolute value and argument are shown in two different lines. Example 2: 1 += V2 45 {Angie Unit Deg) [MATH]

AI calculations in {his section are perormed in (ne STAT Mode CO). Selecting a Statistical Calculation Type In the STAT Mode, display the stalistical calculation type selection screen M Statistical Calculation Types Key |_Menu tem Statistical Calculation © [var Singie-variabie a fax Linear regression CIE Quadratic regression @ finx Logarinmic regression ofex exponential regression © faux ab exponential regression AXE Power regression œ [1x inverse regression M inputting Sample Data Displaying the STAT Editor Screen The STAT editor screen appears alter you enter {he STAT Mode from another mode. Use 1he STAT menu lo select a statistical calculation type. To display ne STAT editor screen from another STAT Mode screen, press (STAT)( (Data) STAT Editor Screen There are two STAT editor screen formats, depending on the type of statistical calculation you selected. EP] à à É É Single-variable Statistics Paired-varñable Statistics + The fistline ofthe STAT editor screen shows the value for the first sample or the values for their first pair of samples. FREQ (Frequency) Column 1 you turn on ine Statistical Display item on the caleulators selup screen, a column labeled-FREQ" wil also be included on the STAT editor screen. E-44

You can use the FREQ column o specif the frequency he number of times the same sample appears in the group of data) of each sample value. Rules for Inputting Sample Data on the STAT Editor Screen + Data you input is inserted into 1he cell where {he cursor is located. Use the cursor Keys 10 move {he cursor beteen cells

Cusor + The values and expressions you can input on ie STAT editor screen are he same as tno8e ÿou can input in the COMP Mode win Linearormat.

• Presshg B wie mputtng data clars your curent input 2 Afer nputing a value, press Œ. This reglers ne Value and Aisplays up to sx fig I ne curenty selected cel. Example: To input he value 128.45 in cel XI Move the eursor to cell X1.) 5 DG800®

{The value you input appears —{123. 451 in the formula area. EI] Registering a value causes the cursor to move down one cell STAT Editor Screen Input Precautions + The number of lines in STAT editor screen (the number of sample data values you can input) depends on the type of statistical data youselected, and on the Statistical Display seting of the calculators setup screen. Statistical Display OFF où Statistic Type {No FREQ column) | _ (FREQ column) Singie-variable B0ines A0 nes Paired-vanable 40 1ines 26 nes + The following types of input are not allowed on the STAT editor screen. + ©. M EM) operations + Assignment to variables (STO)

Precautions Concerning Sample Data Storage Sample data you input is deleted automaticaly whenever you change to another mode from the STAT Mode or change the Statistical Display seting (which causes the FREQ column to be shown or hidden) on the calculators setup screen. Editing Sample Data Replacing the Data in a Cell {t)On ihe STAT editor screen, move the cursor one cell you want 10 edit {2) mput the new data value or expression, and then press Æ] Important! + Note that you must totaly replace the existing data of the cell with new input You cannot edit parts of the existing data. Deleting a Line {1)On the STAT editor screen, move the cursorto the line you want to delete. (Press Inserting a Line {t)On the STAT editor screen, move the cursor to the line that will be under the line you wil insert. (2) Press () (D (STAT) @) (Edit. (8)Press (ins). Important! + Note thatthe insert operation wi not work the maximum number fines allowed for the STAT editor screen are already used Deleting All STAT Editor Contents (1) Press Cr) (D (STAT) @) (Edit. ()Press (Der). + This clears all of the sample data on the STAT editor screen Note + Note that you can perform the procedures under“Inserting a Line” and'Deleting AIl STAT Editor Contents” only when the STAT editor screen is on the display. M STAT Calculation Screen The STAT calculation screens for performing statistical calculations with the data you input with the STAT editor screen. Pressing the GQ key while the STAT editor screen is displayed switches to ne STAT calculation screen. The STAT calculation screen also uses Linear format, regardiess of the current inpuVoutput format setting on the calculators setup screen E-46

M Using the STAT Menu Wie the STAT ecltor soreen or STAT calculation screen is on the display press EF) C(STAN) 10 display the STAT menu ‘The content to the STAT menu depends on whether the current selected statistical operation type uses a single variable or paired variables. jiTvpe 2:Dats SIEUIE disum Éivsr Biminmaz Frs Singie-variable Statisios Paired-varable Stalisies STAT Menu Items Common Items Select this menu item: | When you want to do this: Display the stalistical calculation type selection @rpe screen (Data | Display the STAT editor screen Ed | Display ihe EG sub-menu for eding STAT editor ï screen contents Display the Sum sub-menu of commands for Œ@Sum | calculating sums v Display the Var sub-menu of commands {or Ever calculating the mean, standard deviion, etc. Display the MinMax sub-menu of commandé for ŒMinMex_ | obtaining maximum and minimum values Single-variable Menu Item Select this menu item: | When you want to do this: Display the Disir sub-menu of commands for normal distribution calculations For more information, see “Distr Sub-ment Paired-variabl le Menu item Selectihis menu item: When you want to do this: Display the Reg sub-menu of commands for regression calculations + For detalls see “Commands when Linear Regression Calculation (A+BX) Is Selected” and “Commands when Quadratic Regression Calculation (_+CX2) ls Selected". E-47

Single-variable (1-VAR) Statistical Calculation Commands The folowing are he commands {na appear on the sub-menus that appear when you select (4) (Sum), Œ) (Van), © (MinMax), or (Dist) on Îhe STAT menu while à single-variable statistical calculation type is selected See <#052> for information about {he calculation formula usea fr sach command Sum Sub-menu (Œ7 (D (STAT)&(Sum)) Selectihis menu item: | When you want to obtain this: me Sum of squares of he sample data EX Sum ofhe sample data Var Sub-menu (ŒA D(STAT)@)(Var)) Select this menu item: | When you want to obtain this: Cr Number of samples œx Mean of the sample data @ron Population standard deviation Œxon-1 | Sample standard deviation MinMax Sub-menu (6) (D(STAT)E)(MinMax)) Select this menu item: | When you want to obtain this: Cminx Minimum value Dmaxx Maximum value Distr Sub-menu (F2 CD(STAT)| DFA @a @R @» ‘This menu can be used to calculate the probabilty of standard normal distibution. Normalized variate 1 is calculated with the expression shown below, using the mean value () and population standard deviation value (xGn) obtained from the data input on the STAT editor screen E-48

Standard Normal Distribution pu au ET]

Singie-varable Statistical Calculation <#058> Select single-variable (1-VAR) and inputthe following data: (1,2, 8, 4,5, 6,7, 8,9, 10) (FREQ: ON) <#054> Edit ihe data to the following, using insert and delete: {0, 1,2, 3,4, 5, 6, 7,9, 10) (FREQ: ON) <#055> Edit the FREQ data to the following; 41,2,1,2,2,2,8,4,2, 1) (FREQ: ON) + Examples <#056> through <#059> all use the same data as Example <4055>. <#056> Galeulate sum of squares of he sample data and sum of the sample data <#057> Calculate number of samples, mean, and population standard deviaton. <H058> Caleulate minimum value and maximum value. <#059> Perlorming standard normal distribution approximation on the input sample data (from Example <H055>) produces the probabiies shown below. Distribution probability that is a value less ihan the normalized variate when the sample value is 3 (P value for normalized variate Wen X = 3) Distribution probability {hat is a value greater than the normalized variate when the sample value is 7 (R value for normalzed variate when X = 7) Commands when Linear Regression Calculation (A+BX) Is Selected With linear régression, regression is performed in accordance with the folowing model equation. y=A+BX The following are 1e commandé {hat appear on the sub-menus that appear when you select @) (Sum), Œ){Van), Œ)(MinMax), or (Reg) on 1ne STAT menu while linear regression is selected as the stalistical calculation type. See <#060> for information about the calculation formula used for each command. E-49

Linear Regression Calculaion: <4061> 10 <H064> + Examples <#062> through <#064> al use ie data inputin Example <Ho6t> 1 Estimated Value (+=-3 — £ = ?) *2 Estimated Value (x= 2 ÿ =?) Commands when Quadratic Regression Calculation (_+CX2) Is Selected With quadratic regression, regression is performed in accordance with he folowing model equation: y=A+BX+CX° See “440653 or information aout he calculation formula used or each command! Reg Sub-menu (6) (D(STAT)D(Reg)) Fete | When you want to obtain this: A Regression coefficient constant term À BE Linear coefficient B of he regression coefficients @c Quadraic coefficient C of he regression coefficients œ# Estimated value of 11 or Estimaied value of 12 EX Estimated value of y + Sum sub-menu (sums), Var sub-menu (number of samples, mean, Standard deviation), and MinMax sub-menu (maximum value minimum value) operations are the same those or inear regression caleulations Quadratie Regression Calulation: <#066> 1 <#068> + Examples <#066> through <#068> all use the data input in Example <#06t> Comments for Other Types of Regression For details about 1he calculation formula of the command included in each regression type, refer o the indicated caleulation formulas ( <#069> to <#078>). Statistical Calculation Calculation Te Model Equation | ae RE FENTE 1060 e Exponential Regression ex 070

Statistical Caleulation | Mode Equation | een Type Formula D EgErenIA Reg on or Power Regression (AX"8) <4072> inverse Regression (1/X) <4078> Comparison of Regression Curves + Te lolowing example uses the data input in Example <H06 >. “4074 Compare te correlation coefficient for logarithme, € exponential, ab exponential, power, and inverse regression. (FREQ: OFF) Otner Types of Regression Caleulaton: <#07S3 10 <#070> Command Usage Tips + The commandé included in 1he Reg sub-menu can take a long time to execute in logarithmic, e exponential, ab exponential, or power regression calculation when Ihere are a large number of data samples. Base-77 Calcula ns (BASE-N) ‘The BASE-N Mode lets you perform arthmetic calculations, negative value calculations, and logical operations with binary, octal, decimal, and hexadecimal values. A calculations in this section are perormed in Îhe BASE-N Mode (ED) MH Number Base Setting and Value Input Use ine keys listed below to specify the number base. ‘The key markings used in his section are {he ones that are above each key, on the right. Key Number Base Screen Indicator E Decimal Dec E) Hexadecimal Hex E) Binary Bin FE) Octal CT + The current number base setting is indicated in the second line of the display. E-52

‘The key operation below shows how Lo input a value of 3 using the decimal number base, for example. E9 @n 69 © (BASE)© D (4) ‘The value you input here is decimal number base. <#080> Calculate 12 + 12 in binary. <#081> Calculate 7a + 18 in octal <H082> Caleulate 1F16 + 116 in hexadecimal. <#083> Convert the décimal value 30:10 lo binary, octal, and hexadecimal <H084> Translorm the result of 510 + 516 10 binary. M Negative Number Calculations and Logical Operations To inputa negative number calculation orlogical operation command, press @ Œ(BASE) 10 display page one of the BASE menu, and then press the number key Inat correspond o Ihe command you want to specity. Press this key:] When you want to Input this: Logical operator “and” (logical product), Wien Den returns the result of a bitwise AND Logical operator" or (logical sum), which returns gen the result of a bitwise OR ton Logical operator-xor (exclusive logical sum), which retums the result of a bitwise XOR Logical operator “xnor” (exclusive negative @énor Logical sum), which returns the result of a bitvise XNOR “NoiC funclion, which relums 1he result of à CL bitwise complement “NegC function, which returns Ine resui of à Etes) {o's complement + Negalive binary, oclal, and hexadecimal values are produced by taking the binary two's complement and then retuming the result to the original number base. With the decimal number base, negative values are displayed with à minus sign. Examples <#085> through <#090> show examples of calculations with negative binary values and examples of logical operations. Before starting each calculation, be sure to press RQ En first. E-54

Al calculations in this section are performed in the EQN Mode ŒE). M Equation Types An equation type menu appears when you press (M (5) (EQN) and enter the EQN Mode. Key Menu item Equation Type Simulaneous Linear Œ |a0X+bnv Equations with To Urknowns Simulaneous Linear | anX + av + enZ = dn Equations with Three Urknowns m [arrmx:e-0 Quadraïic Equation @ [ar ;cx:4-0 [unie Equation Changing the Current Equation Type Setting Press (ur) ŒEQN) o re-enter he EQN Mode. This clears al current EQN Mode input and displays 1he equation type menu described above. M Inputting Coefficients Use the coefficient editor screen to input the coefficients of an equation. The coefficient editor screen shows input cells for each of the coefficients required by the currently selected equation type. Ü 5 SD er oo An à

Simutaneous linear Cubic equation equations with to unknowns. Rules for Inputting and Editing Coefficients + Data you input is inserted into 1he cell where {ne cursor is located. When you register input into a cel, ine cursor moves 10 the next cellto he right + When simultaneous linear equations with three unknowns or cubic ‘equation is selected as the equation type, the d column will not be visible on ie display when ine coefficient editor screen is first displayed. The d column will become visible when you move the cursor oi, which causes the screen 1o sh E-55

+ The values and expressions you can input on the coeicient editor screen are the same as those you can input in the COMP Mode with Linear format. + Pressing ( while inputing data clears your current input. + After inputtng data, press Œ).This registers the value and displays Up to six of is dits in the current selected cel. + To change the contents of a cell, use the cursor Keys to move ine cursor to the cell and then input the new data. Initializing All Coefficients to Zero You can clear all coefficients to zero by pressing the inputting values on the coefficient editor screen. Coefficient Editor Screen Input Precautions Coefficient editor screen precautions are basicall the same as those forthe STAT editor screen. The only difference is that he first STAT. editor screen precaution does not apply in the case of the coefficient editor screen. For details, see"STAT Editor Screen Input Precautions M Solution Display Aerinputing and registering values onthe coelficient editor screen press Æ to display the solution(s) for the equation

• Each press of Œ) displays the next solution, there is one. Pressing ©) while the final solution is displayed returns to the coefficient editor screen + Inthe case of simultaneous linear equations, you can use @ and © to switch the display between the solutions for X and Y (and

key while + When there are muliple solutions fr a quadrati or cubic equation you can use the ® and © Keys to scrollihe display between Xi, X2, and Xa. The actual number of solutions depends on the equation. + Pressing ES while a solution is displayed wilretum to the coefficient editor screen + The display format of solutions is in accordance with 1he input output format and complex number display format setings of ne caleulators setup screen. + Note that you cannot transform values to engineering nolaion while an equation solution is displayed. Equation Calculation: <#091> to <#095> E-56

Matrix Calculations (MATRIX) You can save matrices under the names ‘MatA”,"MatB”, and'MalC” in matrix memory. Matrix calculation results are stored in a special Matix Answer Memory named MatAns” AI calculations in ins section are performed in ne MATRIX Mode (E59 ©)» M Creating and Managing a Matrix Creating a Matrix and Storing It in Matrix Memory {H)In the MATRIX Mode, press Gr) @D (MATRIX) (D (Dim). + This displays the matrix selection screen. Matrix? iihaté 2. SiMBtC

+ Note that ihe matrix selection screen also appears whenever you enter the MATRIX Mode. ()Press a numberkey (D, @, or @) to speciythe name ofthe matix you want lo select + This displays a screen for configuring dimension settings. T © 3 MatA (men), mx? — [Matane man? NS 218K2 LIIXS 2t1K2

(8)Press a number key ([D through ()) to speciiy the matrix dimension you want to use + Pressing a number key to specify he matrix dimension causes the matrix editor screen to appear.

Pi fl stands for"MatA {a)Use the matrix editor screen to input each of the elements into the matrix + Input is subject to the same rules as those that govern the coefficient editor screen in the EQN Mode. For more information. see “Rules for Inputting and Editing Coetficients + If you want to create another matrix, repeat this procedure from step (1). E-57

Copying the Contents of One Matrix to Another Matrix

1) Use the matrix editor screen to display the matrix you want to

copy, or display the Matrix Answer Memory screen + Ifyou want to copy Matrix À, for example, press Gr] (Æ) (MATRIX) Data) (D (MatA). (2) Press ŒF) ÆD(STO). + This causes the ST indicator to appear on the display. (8) Speciy the destination of the copy operation. To specity this destination: Press this key: Matrix À EM) Matrix B EMaB) Matrix © (Mac) + Pressing ES(MaB) copies the max 10 Matik B, and dispays ne matt editor screen or Mat M Performing Matrix Calculations Pressing G while the matrix selection screen or matrix editor screen is on the display switches to the matrix calculation screen. Matrix Answer Memory Screen The Matrix Answer Memory (MatAns) screen shows ihe results of mat calculations.

+ You cannot edit the contents of a cell. + To switch to the matrix calculation screen, press + While the MatAns screen is on the display, you can press an arithmetic operator key (Ike Œ or (=) anduse the screen contents in a subsequen calculation, just as with Answer Memory contents. For more information, see “Using Answer Memory to Perform a Series of Calculations” E-58

Æ Matrix Menu Items The following are the menu items on {ne matrix menu {hat appears when you press (GE) (&) (MATRIX). Selectihis menu item: When you want to do this: Select a matrix (MatA, MatB, MalC) and specify is Œoim | aimension (oats —[Ssiecta mate (MaIA, MalB, MaïC) and display is data on the matrix editor screen GMA | mpur-Maua” GB | mpu-Mas” OMC | mpur-Matc” Mains | mput-Matans” Input the “dei function for obtaining ne determinant Input the “TrnÇ function for obtaining a transposed data in Matrix us-mounane[ ? 1 Jauoe[1 + +] cum conan | 2 1 Juasans eine ne + The following examples use the matrices input in Examples <#096> and <#097> (MatA, MatB, MatC). <#098> MatA + MatB (Adding Tino Matrices) <#099> MatA x MatB, MatB x MatA — MatA x MatB (Mulipiying Two Matrices) <#100> 3 x MatA (Matrix Scalar Muliplication) <#01> Obtain the determinant of Matrix À (det{MatA)) <#102> Obtain the transposition of Matrix C (Tin(MatC)). <#103> Obtain the inverse matrix of Matrix À (MatA!). + Use the @ key to input *-#". Note that you cannot use @ for this input <#104> Obtain the absolute value (Abs(MatB) of each element of Matrix B. + Use 6) (As). <#105> Determine the square (MatA?) or cube (MatA$) of Matrix A. to specify squaring, and Gr) (x) to specity cubing. Note that you cannot use (3 for this input E-59

Generating a Number Table from a Function (TABLE) Al calculations in this section are perlormed in the TABLE Mode (En M Configuring a Number Table Generation Function ‘The procedure below configures the number table generation function with the following settings.

2) Input he function.

#O0=x24 121 (8) After making sure the function is the way you want, press ©) + This displays the start value input screen. Start? Indicates the initial defaut start IT vaiue of 1 + Ifthe initial value is not 1, press value for this example. a) After specilying the start value, press ©] + This displays the end value input screen. End? to specify the initial start gites the ina dtaut end value of 5. + Specify the end value. E-60

(5) After specitying the end value, press + This displays the step value input screen. Stern? 1 Indcates he initial defaut step value of 1 + Specify the step value. + For details about specifying the start, end, and step values, see “Start, End, and Step Value Rules”. (6) After specitng te step value, press Æ) + Pressing the ES key returns to the function editor screen. E Supported Function Types + Except for the X variable, oiher variables (A, B, C, D, Y) and independent memory (M) are all treated as values (the current variable assigned to the variable or stored in independent memory). + On variable X can be used as the variable of à function. + The derivative (d/dx), integration (|), coordinate conversion (Pol, Rec), and sum (©) functions cannot be used for a number table generation function. + Note that the number table generation operation causes the contents of variable X 10 be changed M Start, End, and Step Value Rules + Linear format is always used for value input

• You can specil either values or calculation expressions (uhich must produce a numeri resui) for Start, End, and Step. + Speciing an End value that less than Ine Start value causes an error, s0 the number ble is not generated + The specified Start, End, and Step values should produce a maximum of 30 x-values for ine number table being generated Executing a number generation table using à Start, End, and Step value combination Ina produces more than 30 x-values causes an error Note + Certain functions and Start, End, Step value combinations can cause number table generation to take à long time. E-61

Æ Number Table Screen The number table screen shows à-values caleulated using the specified Start, End, and Step values, as well as the values obtained when each value is substiluted in the function fa). Note that you can use the number table screen for viewing values nly Table contents cannot be edited. + Pressing the RS key retums to the function editor screen, M TABLE Mode Precautions Note that changing the inputoutput format settings (Math format or Linear format) on the calculators setup screen while in the TABLE. Mode clears the number table generation function: Vector Calculations (VECTOR You can save vectors under the names “VctA",“VclB", and"VctC” in vector memory. Vector calculation results are stored in a special Vector Answer Memory named “VctAns. Al calculations in this section are perlormed in the VECTOR Mode (E59 ©)» M Creating and Managing a Vector Creating a Vector and Saving It in Vector Memory {tin the VECTOR Mode, press @E) (S)(VECTOR) (D (Dim) + This displays a vector selection screen + Note that the vector selection screen also appears whenever you enter 1he VECTOR Mode. (2)Press a numberkey (D, , or ))to speciythe name ofthe vector you want o select. + This displays a screen for configuring dimension settings. (8) Press a number key ((D or (A) to specify the vector dimension you want to use. + You can select either 3-dimension ((D) or 2-dimension ((Æ)). + Pressing a number key to speciy Ihe dimension displays {ne veclor editor screen. La" stands tor-votar. E-62

(4) Use the vector editor screen Lo input each element. + Input is subject to the same rules as those that govern the coefficient editor screen in the EQN Mode. For more information. see “Rules for Inputting and Editing Coefficient". If you want to create another vector, repeat this procedure from step (1). Copying the Contents of One Vector to Another Vector You can copy the contents of Vector Answer Memory (VetAns) or of a vector in vector memory 1 another vector in vector memory. The vector copy operation is basicall the same as ihe matrix Copy operation. See “Copying the Contents of One Matrix 10 Another Mat for more information: Performing Vector Calculations ‘To perform a vector calculation, display {he vector calculation screen by pressing the @ key. Vector Answer Memory Screen The Vector Ansuer Memory screen shows the resul of {ne last vector calculation:

+ You cannot edit the contents of a cell + To switch to the vector calculation screen, press. M Vector Menu Items The following are {he menu items on the vector menu {hat appears when you press (F) (5)(VECTOR). Selectihis menu item: | When you want to do this: Select a vector (VctA, VoiB, Vel) and speciy is dimension (@oata | S21ect à vector (VA, VetB, Veic) and display ns 8] data on the vector editor screen ŒVGA | mpur voa” ŒVeB | mpur vas” ŒVac | mpurvac” ŒVcAns | mpur-varans" command for obtaining the dot produet Ooim E-63

<#106> Store VctA = (1, 2) and VetC = (2, —1, 2). Liane Copy Va à (2 es ans Da acer tovase + The following examples use the vectors input in Examples <#106> and <#107> (VetA, VetB, Vc!C) <#108> VctA + VetB (Vector Addition) <#08> 3 x VetA (Vector Scalar Multiplication) VetB — 3 x VctA (Calculation example using VctAns) <#110> VetA * VeiB (Vector Dot Product) <#111> VelA x VeiB (Vector Cross Product) <#12> Obtain the absolute values of Vc!C. <#118> Determine the size of he angle (angle unit: Deg) formed by vectors A = (-1, 0, 1) and B = (1, 2, ©), and one of he size 1 vectors perpendicular to both À and B, 1 co 0= (AE) wnich becomes 0 = eos AL QE TaTT8T (AXE) “2 Size 1 vector perpendicular to both À and B lAxB] Scientific Constants Your calculator comes with 40 buil-in constants that are commonly used in scientific calculations. You can use the scientific constants in any calculation mode except for BASE-N. + To recalla scientific constant, press Gr) (D (CONST). This displays the scientific constant menu. Input the two-digit number that correspands to the constant you want to recall. When you recall a constant, its unique symbol appears on the display. + The following are all of the buil-in scientific constants. Of: proton mass; 02: neutron mass; 03: electron mass; 04: muon mass; 05: Bohr radius; 06: Planck constant, 07: nuclear magneton: 8: Bohr magneton; 09: Planck constant, rationalized: 10: fine- Structure constant 11: classical electron radius; 12: Compton wavelength; 13: proton gyromagnelic ratio; 14: proton Compton wavelength; 15: neutron Compton wavelength; 16: Rydberg constant, 17: atomic mass unit; 18: proton magnetic moment, 19: electron magnetic moment; 20: neutron magnetic moment; 21: muon magnetic moment, 22: Faraday constant, 23: elementary charge; 24: Avogadro constant, 25: Boltzmann constant, 26: molar volume of ideal gas; 27: molar gas constant, 28: speed of light in vacuum; 29: fist radiation constant; 30: second radiation constant; 31:Stefan-Boltzmann constant; 82: electric constant, 88: magnetic constant, 34: magnetic flux quantum; 85: standard acceleration of gravity; 36: conductance quantum; 37: characteristic impedance of vacuum, 38: Celsius temperature; 39: Newtonian constant of gravitation: 40: standard atmosphere E-64

• Conversion formula data is based on the" IST Special Publication 811 (1995). + “eal'uses ie NIST value at 18. <i> to «120 Perlorm all of these examples in the COMP Mode (GE CD). M Caiculation Priority Sequence The caleiatorparoms caleulaons according to a caution prriy sequence. + Baskah, calutatons are pelbemedfrom et 1 igh. 2 Expressions within parentnezes have he highest pret. + The foloning shows ie pri soquonce or each havidual command Function wih parotheses Po, Rec Je dit, 54 PI QU R( Sin(, cos(, tan, sin-1(, cos-#{, tan-1(, sinhf, cosh(, tanh(, sinh”1(, cosh”1(, tanh=1( log, In(, en, 10% 17, 307 ar, Abs(, Gonigl oi, Negi der, Tin( And

2. Functions preceded by values, poners, pomer roots

CREER) Normalized varate: > 1 Percent: % E-65

Statistical estimated value caleulaton:&, ÿ, 4, Le Permutations, combinalions:nPr, 1Cr {Complex polar form symbol: Z Dot product + (Dot) Multiplication and division: x, + Mulipication where sign is omited: Mutiplication sign omitted immediately before, e, variables, scientfi constants (2x, SA A, 8mp, 2, et, functions with pareniheses (2V (3), Asin(30), te.)

9. Addiion and subtracton: +, —

10. Logical AND: and

1: Logical OR, XOR, XNOR: or, xor, nor If a calculation contains a negative value, you may need 10 enclose 1e negative value in parentheses. you wank lo square the value -2, for example, you need to input: (-2f2. This is because 12 is a function preceded by a value (Priority 2. above), whose priority is greater than the negative sign, which is a prelix symbol {Proiy 4). Example: 08e 080088 2-4 Muttplcation and division, and multiplication where the sign Is omited are the same priority (Priority 8), so these operations are performed from left 10 right when both types are mixed in the same calulaion. Enclosing an operation within parentheses causes it 10 be perlormed first, so the use of parantheses can result in different calculation results. Example: CÉBIRE) e0uvoce 1 Stack Limitations This caleuiator uses memory areas called stacks to tomporarly store lower calculation protty sequence values, commandés, and functions. The numer stack has 10 levels and the command stack has 24 vel, as shot in ne ilustration bolen. NIHTTE O8 © EE © et peter 2/31/6514 € EI +

A Stack ERROR ocœurs when ihe calculation you are perlorming causes the “capacity o ltherstack1o be exceodod. Stack Issues to Keep in Mind for Each Mode + In the CMPLX Mode, each input value uses to levis of the numeric stack, regardless of whether ne input values a real number or à complex number “This means that the numeri stack electol has onfy ve levels in the CMPLX Mode 2 The MATRIX Mode uses is un matrix stack, ich is used in combination with ne general purpose numeri stack. The mat stack has 1hre levels. Perorming à calculation that involves à mat causes one level of te matrix stack 10 ba used for storage of the result. Squarng, cubing, or inverting a matrix also uses ne level of the matrix tack. + The VECTOR Mode uses ls oun vector stack, which is used in combination th the general-purpose numeri stack The vectr stack has five levels. Vector stack usage follows he same rules as Ina mat stack, described above. 1 Calculation Ranges, Number of Digits, and Precision he calculation range, number fig used fr item calculation, and calculation precision depends on 1he type af calculation you are perorning: Calculation Range and Precision Caleulaion Range 211 x 10-99 to 19990998090 » 1095 or 0 Number of Digi fr Internal ï Caleulation 15 dits Precision in general, 7 atine TOI it or à single calculation. Precilon or exponential display Is 21 at the least significant digi. Errors are cumulale in the case of consacutve calculations. Function Calculation Input Ranges and Precision Functions Input Range sn [DES Joe RAD | 0= 1) = 1570706227 GRA Jos he ten

RAD [oz hi =1570706327 GA [os hieteioe tan _[DEG | Same as six, except when fe (2r-1)x00. RAD_| Same as sim, except when fui (2n-1}xR2 En-1}x 100. GRA | Same as sin, except when

M Error Messages The calelatorwil display an error message he a sui exceeds ie calculation range, en you attempt an lag input, or vhenever any ler imlar problem When an error message appears... Te folowing are general operaïions you can use when any error message appears. + Pressing @ or ® displays la ihe calculation expression adting screen you are using befora ie error message appoared, with Ina eursor located a the osiion of the error. For more information, se “Displaying 1e Location of an Error. Pressing F9 ciears the caution xpression you input bre the error message appeared. You can then re-input and re-execute (he caleulation, you want. Not tatin Mi caso, he original calculation wil nt be retained in caleulation history memory. Math ERROR + Cause 2 The intermediate or final resu ofthe caleuiation you are perloming exceeds the allowabe calculation range. + Your input exceeds the allowable input range (particularly when using functions). + The calculation you are perlorming contains an legal mathematical operation {such as division by 2270), + Action Check ie input values, roduce to number of igis, and try again + When using independent memory or a varable as to argument fa function, make sure hat the memory or variable value is within 1e allowabe range for the function. Stack ERROR + Cause + The calculation you are perlorming has caused the capacity of he numorc stack or Ing command stack Lo ba excecded + The calculation you are poromning has caused the capacity of the matix slack to be exceoded. + The calculation you are porlomning has causod the capachy of the vector stack to be excaeded. + Action + Simply he calculation expression sol does nat exceed the capacity of the stack + Try pltingthe calculation io two or more parts. Syntax ERROR + Cause 2 Thore is a problem with the format of te calculation you are perlorming. + Action + Make necessary corrections Argument ERROR + Cause + Thore is a problom with the argument of the calculation you are perlorming E-69

+ Action + Make necessary corrections. Dimension ERROR (MATRIX and VECTOR Modes only) + Cause 2 The matix or veclor you are tjng to us in a calculation was input without specingits dimension. = You ate Hying 0 perlorm à caleulaïion with matices or vectors whose dimensions do nat low that type of aluiation + Action + Speciytne dimension f the mari vector and then pelorm the caution agan. Gheck ie dimensions specied fr he matrices or vector 19 s00 hey are compatble with he calin. Variable ERROR (SOLVE feature only) + Cause

• Youdi notspeci a souton variable, andere no X wariabieintho equation vouinput. + The solution variable rat you space is not included in 1ha equation you impu. + Action 2 The equation you input must include an X variable on you do nat spaciy te solution variable. = Speclÿ a arabe hat incuded in the equation you input as the salon variable. Can't Solve Error (SOLVE feature on) + Cause = The caleutor cou not abtain a soon, + Action 2 Gheck or errors in the equation that you put Input a value fr ho solution variable tt is close 10 the expacted soutien anduy again Insufficient MEM Error + Cause That not enough memory to perl your calculation. + Action + Narrow ho ab calin ange by changing he Star, End, and Step values and y aga Time Out Error + Cause The eurent diferenta or itagation calculation ends without he ending condton boing filed + Action 2 Try increasing ne 10 value. Net Hat this also decreases solution precision. 1 Before assuming malfunction of the calculato Perform the folloming steps whenauor an error oceurs during a calculation or thon calculation resuts are not what you expected. ane step does not correct the problem, move on 10 1he next stop. Note that you Should make Separate copies ol important data belore perlorming 1hese steps. E-70

{) Check the calculation expression to make sure that it does not contain any (2) Mako sure that you are using the correct mode for the type of calculation you are trying to pertorm. (8) Ilthe above steps do not correct your problem, press the (BJ key. This wi cause he calcultor to perform a route that check whether calculation functions are operating corse. ne caeulator iscovers any abnormali, it automatically intalzes he calculation mode and clears memory content. For details about nilalzed settngs, see “italzng the Caleulation Mode and Other Settings” under *Caleuiation Modes and Calculator Setup" {4) Inialize all modes and settings by perlaming the following operation: ET OCR) D(Seup) Elves). Reference M Power Requirements and Battery Replacement This caleulator is pouered by a single AAA-size battery (R0S (UM- Replacing the Battery Dim figures on the display of1he calculator indicate that battery power is low. Continued use of 1he calculator when the battery s low can resul in improper operation. Replace the battery as soon as possible when display figures becomes dim. Even if the calculator is operating normal, replace the battery at least once every Mo years. Important! + Removing the battery from the calculator causes independent memory contents and values assigned to variables to be cleared (D Press EM ŒO(OFF) to turn off the calculator. (2 Onthe back ofthe caleulator, remove the screws and the back cover. Remove the old battery. & Load a new battery into the calculator wihits positive © and negative © ends facing correct © Replace the back cover and secure it in place with is screws. & Perlorm the following key operation: En Œ(CLR)D (AI) E (es) + Make sure you perlorm the above key operation. Do not skip it. E-71

Auto Power Off Your caleulator will turn off automatically i you do not perform any operation for about six minutes. I {his happens, press ine G key to turn the caleulator back on Spe Power Requirements: AAAssize battery: RO3 (UM-4) x 1 Battery Life: Approximately 17,000 hours (continuous display of flashing cursor) Power Consumption: 0.002 W Operating Temperature: 0°C to 40°C Dimensions: 13.7 (H) x 80 (W) x 161 (D) mm She” (H) x 348 (W) x 6548 (D) Approximate Weight: 110 g (3.9 oz) including the battery Bundled Items: Hard Case E-72