Manual / Guide · c. 2015
Casio fx-570EX / fx-991EX ClassWiz User's Guide
Casio's user's guide for the fx-570EX and fx-991EX ClassWiz, the successors of the ES series.
Manual / Guide · c. 2015
Casio's user's guide for the fx-570EX and fx-991EX ClassWiz, the successors of the ES series.
EN Jx-570EX fx-99LEX User’s Guide CASIO Worldwide Education Website http://edu:casio.com Be sure to keep all user documentation handy for future reference. RJA532432-001V01 CASI oO ® CONTENTS About this Manual........ ccc ccccccccceteseeeecescttstseeeeesesetsaeeteeesentitaeeeeeesenniea 2 Initializing the CalCUlator........cccecceccecceeceteeteeteteeteeteetesneeteetenteeneneees 2 [na (=\@r~ 10] 1 (0) |S ee ccc ee Getting Started - Calculation MOd@.......cccccccccccccccccccsseesessesescsseeesesuseesssaseessseeeseseeecetaeeesiaes 4 Input and Output Formats... cccececeeceeteeteeceeeeeteesenteetenesteneeteenrenes 5 Configuring the Calculator Setup... Inputting Expressions and Values... 8 Toggling Calculation Results....... .10 Basic Calculations. ........cccccceccecceecesteereeeeeteenseetesnreceetessessteenieeteettentetees 10 Calculation History and Replay........cccccccccsceesetesteeteenentestenteetenenees 12 Using Memory Fun ctions........00 ccc eee eereeneeeeseressemiliitineersccee 13 Function Calculations. ......0cccccceccececeeteetecreeteeceeresiudtessessrsteneetbneees 14 QR Code Function Complex Number Calculations USING CALC... ecceccecceecectetteeteeeeeteenetetestrenieensenietnaenesieneeieneenteneenees Using SOLVE...........0 ad Statistical CalCulations......000cccccccccccccssccceseeDecsscecccsaeeebasseesccsseescseeeeseas 20 Base-n CalCulations.........cccccccccccccccsccccssseccsstesetibescssssseesatlienssseccuateenses 23 Equation Calculations. ....0...:c:cccccesemiiiitersssccreesereedbeessesesretesesntereetees 24 Matrix CalCulations....0..0..cccccccccteccesccccsteeeccsscecccseesenalaecsstessseeeecsaeeeees 25 Creating a Number Table........ccccccccceecceceerectuntetteertureedbaereecenteeseneees 27 Vector CalCulations.........cccccccccecccssceccsssesllaeeecssaeetDassescsseegisseecessteeeenaees 28 Inequality Calculations.... 1 29 Ratio CalCulations.........ccccccccccccsscecesescecsseecccsseeccssaeeestsseeccseecctasecesaeesenes 30 Distribution CalCUlatiOns.....0...cccccccccccccccccccsacesstaeetcsseecccseecetsaeescsaeesenes 31 USING Spreadsheet... Meee eeccecceeeedentbbneitdteesresceecesteeteeeteeteeteeteentees 33 SCIENTIFIC CONSTANTS... cee c eee ee ccsceeecssseeecsseeecsseeeccseeeccsaseecsaeeessaaes 37 Metric COnVerSiOn......ccccccccecccteceecceeesilbbecccssecccsseeescsseeecsaecessseesetaeeecssaees 37 EVlOlS....cccccsccccccccesssseecteeeeesuleeescecscsssssteeesessssaaes 87 Before Assuming Malfunction of the Calculator..........cceeeccrcreteeeee Replacing the Battery... ce ccc eneeteeeteesiesteesteeneenies TeCAnical INFOPMALION...... cece cece cecessseeeeeeeeestsseeeeeeesettsaseeeeeenenteea mm Frequently Asked Questions mm Reference Sheet... cccccccccccccceeeceeceeeeeeeceeceeeeeeeseeeeeescseesesessseesseeeneeeteeees e In no event.shall CASIO Computer Co., Ltd. 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. e Moreover, CASIO Computer Co., Ltd. shall not be liable for any claim of any kind whatsoever by any other party arising out of the use of this product and the items that come with it. About this Manual e Unless specifically stated, all sample operations in this manual assume that the calculator is in its initial default setup. Use the procedure under “Initializing the Calculator” to return the calculator to its initial default setup. e The contents of this manual are subject to change without notice. e The displays and illustrations (such as key markings) shown in this User's Guide are for illustrative purposes only, and may differ somewhat from the actual items they represent. ¢ Company and product names used in this manual may be registered trademarks or trademarks of their respective owners. Initializing the Calculator Perform the following procedure when you want to initialize the calculator and return the calculation mode and setup (except for the Contrast setting) to their initial default settings. Note that this operation also clears all data currently in calculator memory. (9) (RESET) B) (Initialize All) E) (Yes) Precautions Safety Precautions man Battery e Keep batteries out of the reach of small children. e Use only the type of battery specified for this calculator in this manual. Handling Precautions e Even if the calculator is operating normally, replace the battery at least once every three years (LR44) or two years (RO3 (UM-4)). A dead battery can leak, causing damage to and malfunction of the calculator. Never leave a dead battery in the calculator. Do not try using the calculator while the battery is completely dead (fx-991EX). e The battery that comes with the calculator discharges slightly during shipment and storage. Because of this, it may require replacement sooner than the normal expected battery life. e Avoid use. and storage of the calculator in areas subjected to temperature extremes, and large amounts of humidity and dust. e Do not subject the calculator to excessive impact, pressure, or bending. e Never try to take the calculator apart. e Use a soft, dry cloth to clean the exterior of the calculator. e Whenever discarding the calculator or batteries, be sure to do so in accordance with the laws and regulations in your particular area. Getting Started Before using the calculator, slide its hard case downwards to remove it, and then affix the hard case to the back of the calculator as shown in the illustration nearby. Turning Power On and Off Press to turn on the calculator. Press (0) (OFF) to turn off the calculator. Note: The calculator also will turn off automatically after approximately 10 minutes of non-use. Press the key to turn the calculator back on. Adjusting Display Contrast Display the Contrast screen by performing the key operation. below: (HEN (SETUP) @ () (Contrast). Next, use & and ® to adjust contrast. After the setting is the way you want, press (dQ). Important: If adjusting display contrast does not improve display readability, it probably means that battery power is low. Replace the battery. Key Markings Pressing the or key followed by a second key (2) performs the alternate function of the second key. The alternate [.7—4 D- function is indicated by the text printed above the key. sin | In (1) Keycap function (2) Alternate function au This color: Means this: Press andithen the key to access the Yellow : . applicable function. Press and then the key to input the Red applicable variable, constant, function, or symbol. Purple (or enclosed in Enter the Complex Mode to access the function. purple 71 brackets) Blue (or enclosed in blue F 1 brackets) Reading the Display Enter the Base-N Mode to access the function. 2 2 a) ea] (3) (1) -@| Pol G2, 72) Pol(i. 414213562, |: (1) Input expression (2) Calculation result (3) Indicators e lf a> or & indicator appears on the right side of either the input expression line or calculation result line, it means the displayed line continues to the right. Use ® and @ to scroll the line display. Note that if you want to scroll the input expression while both the ® and > indicators are displayed, you will need to press first and then use ® and @ to scroll. e The table below describes some of the typical indicators that appear at the top of the screen. The keypad has been shifted by pressing the key. The S| keypad will unshift and this indicator will disappear when you press a key. The alpha input mode has been entered by pressing the EY key. The alpha input mode will be exited and this indicator will disappear when you press a key. Indicates the current setting of Angle Unit (BJ: Degree, I: D//e ; ; Radian, or [@: Gradian) on the setup menu. FIX A fixed number of decimal places is in effect. SCI A fixed number of significant digits is in effect. M There is a value stored in independent memory. The calculator is standing by for input of a variable name to 3] assign a value to the variable. This indicator appears after you press (S10). Indicates that Mathl/MathO or Mathl/DecimalO is selected for Input/Output on the setup menu. oO The display currently shows an intermediate result of a multi- statement calculation. This indicator is displayed while the calculator is being @ powered directly by its:solar cells, either entirely or in some combination with the battery. (fx-991EX only) Using Menus Some of the operations of this calculator are performed using menus. Menus are displayed by pressing or and then (WEN (SETUP). General menu operation operations are described below. e You can select a menu item by pressing the number key that corresponds to the number to its left on the menu screen. 1iInput/Output — #+(1) 1:Math! /Matho (2) 2:Angle Unit w 2:MathI/DecimalO 3iNumber Format ——>_ | 3: Line! /LineO 4:Engineer Symbol @ 4:Linel/DecimalO e A vertical scroll bar (1) indicates that the menu runs off the screen. In this case, you can use @ and @ to scroll the menu up and down. A left arrow (2) indicates that the currently displayed menu is a sub-menu. To return from a sub-menu to its parent menu, press @. ¢ To close a menu without selecting anything, press &d. Calculation Mode Specify the calculation mode that is suitable for the type of calculation you want to perform. 1. Press EN) to display the Main Menu. Be g (ee 2. Use the cursor keys to move the highlighting to the icon you want. % g lds jg A.J Hy d 1:Calculate For this: Select this icon: General calculations t= (Calculate) Complex number calculations (Complex) Calculations involving specific number systems (binary, octal, decimal, hexadecimal) i & (Base-N) Matrix calculations oo (Matrix) Vector calculations B (Vector) Statistical and regression calculations Ith (Statistics) Distribution calculations HN (Distribution) Spreadsheet calculations ree] (Spreadsheet) Generate a number table based on one Bo (Table) Equation and function calculations x * (Equation/Func) Inequality calculations x3 (Inequality) Ratio calculations O:O (Ratio) 3. Press [E) to display the initial screen of the mode whose icon you selected. Note: The initial default calculation mode is the Calculate Mode. Input and Output Formats Before starting a calculation on the calculator, you should first use the operations in the table below to specify the formats that should be applied for calculation formula input and calculation result output. Press (HEN) (SETUP) To specify this type of input and output: | G) (Input/Output) and then press: Input: Natural Textbook; Output: Format that includes a fraction, J, or 2*! G)(Mathi/Matho) Input: Natural Textbook; Output: Converted . to decimal value (2}(Math|/Decimalo) Input: Linear*?; Output: Decimal or fraction | ()(Linel/LineO) Input: Linear*?; Output: Converted to decimal value (4) (Linel/DecimalO) *1 Decimal output is applied when these formats cannot be output for some reason. *2 All calculations, including fractions and functions are input in a single line. Same output format as that for models without Natural Textbook Display (S-V.P.A.M. models, etc.) Input/Output Format Display Examples Mathl/MathO 22 12 2+{2 1 2 Mathl/DecimalO 5 3 {2 1. 466666667 1. 707106781 Linel/LineO 415+243 C14V¥ C2) )4V 02) 2215 1. 707106781 Linel/DecimalO 415+23 C(1l4V¥ C2) )+vV 02) 1. 466666667 1. 7O7106781 Note: The initial default input/output format setting is Mathl/MathO. Configuring the Calculator Setup To change the calculator setup 1. Press: (SHA) (HEN) (SETUP) to display the setup menu. 2. Use @ and @ to scroll the setup menu, and then input the number displayed to the left of the item whose setting you want to change. Items and Available Setting Options “@” indicates the initial default setting. Input/Output (i) Mathl/MathO*; (2)Mathl/DecimalO; (3) Linel/LineO; ()Linel/DecimalO Specifies the format to be used by the calculator for formula input and calculation result output. Angle Unit G)Degree*; (2)Radian; @)Gradian Specifies degree, radian or gradian as the angle unit for value input and calculation result display. Number Format Specifies the number of digits for display of a calculation result. QO Fix: The value you specify (from 0 to 9) controls the number of decimal places for displayed calculation results. Calculation results are rounded off to the specified digit before being displayed. Example: 100)7 GF) E)(~)* 14.286 (Fix 3) ()Sci: The value you specify (from 0 to 9) controls the number of significant digits for displayed calculation results. Calculation results are rounded off to the specified digit before being displayed. 6 Example: 1 )7@#=) E)(~)* 1.4286 x 1071 (Sci 5) (@)Norm: Displays calculation results in exponential format when they fall within the ranges below. GONorm 1°: 10? > |x|, [x] 2 10°, Norm 2: 10° > |x|, |x] 2 10°° Example: 1) 200 Gr) )(~)* 5 x 10°(Norm 1), 0.005 (Norm 2) * Pressing (=) (=) instead of (E) after inputting a calculation will display the calculation result in decimal form. Engineer Symbol G)On; (2)Off* Specifies whether or not to display calculation results using engineering symbols. Note: An indicator (E) is displayed at the top of the screen while On is selected for this setting. Fraction Result GJab/c; (2)d/c* Specifies either mixed fraction or improper fraction for display of fractions in calculation results. Complex G)a+si*; @)rze Specifies either rectangular coordinates or polar coordinates for Complex Mode calculation results and Equation/Func Mode solutions. Note: An i indicator is displayed at the top of the screen while atbi is selected for the Complex setting. 2 is displayed while 7 2@ is selected. Statistics G)On; (2)Off* Specifies whether or not to display a Freq (frequency) column in the Statistics Mode Statistics Editor. Spreadsheet For configuring Spreadsheet Mode settings. G) Auto Calc: Specifies whether or not formulas should be re-calculated automatically. @On*; @)Off Enables or disables auto re-calculation. (2)Show Cell: Specifies whether a formula in the edit box should be displayed as it is or as its calculation result value. Formula’: Displays the formula as it is. (2) Value: Displays the calculation result value of the formula. Equation/Func ()On*; (2)Off Specifies whether or not to use complex numbers in solutions output inthe Equation/Func Mode. Table G)f(x); 2) f(x),2(x)* Specifies whether to use function f(x) only or the two functions f(x) and g(x) in the Table Mode. Decimal Mark G)Dot*; (2)Comma_ Specifies whether to display a dot or a comma for the calculation result decimal mark. A dot is always displayed during input. Note: When dot is selected as the decimal mark, the separator for multiple results is a comma (,). When comma is selected, the separator is a semicolon (;). Digit Separator G)On; (2)Off* Specifies whether or not a separator character should be used in calculation results. MultiLine Font G)Normal Font*; (2)Small Font Specifies the display font size when Linel/LineO or Linel/DecimalO is selected for Input/Output. Up to four lines can be displayed while Normal Font is selected, and up to six lines can be displayed with Small Font. QR Code_ Specifies the version of the QR code displayed when (FTN) (QR) is pressed. G)Version 3: Indicates QR code Version 3. (2) Version 11°: Indicates QR code Version 11. To initialize calculator settings (except the Contrast setting) (9)(RESET) @) (Setup Data) E) (Yes) Inputting Expressions and Values Basic Input Rules When you press [E) the priority sequence of the input calculation will be evaluated automatically and the result will appear on the display. 4x sin 30 x (80 + 10 x 8) = 120 409) fn} 300) CI) O30) 10BI30IE) [axsinc30)%(30+1 0» |__| | "2 *3 120 *1 Input of the closing parenthesis is required for sin and other functions that include parentheses. *2 These multiplication symbols (x) can be omitted. *3 The closing parenthesis immediately before the E) operation'can be omitted. Note e The cursor will change shape to Il when there are 10 bytes or less of allowed input remaining. If this happens, end calculation input and then press &). e If you execute a calculation that includes both division and multiplication operations in which a multiplication sign has been.omitted, parentheses will be inserted automatically as:shown in the examples below. - When a multiplication sign is omitted immediately before an open parenthesis or after a closed parenthesis. Example: 6 + 2(1 + 2) > 6 +(2(4 + 2)) - When a multiplication sign is omitted immediately before a variable, a constant, etc. Example: 2 + 2/2 > 2+ (2/2) Calculation Priority Sequence The priority sequence of input calculations is evaluated in accordance with the rules below..When the priority of two expressions is the same, the calculation is performed from left to right. 1 |Parenthetical expressions Functions that have parentheses (sin(, log(, etc., functions that take 2 }an argument to the right, functions that require a closing parenthesis after the argument) Functions that come after the input value (x”, x?, xt, x!, °°”, °,", & %, 3 |»t), engineering symbols (m, yu, n, p, f, k, M, G, T, P, E), powers (x#), roots ("V5) 4 |Fractions 5 |Negative sign ((-)), base-n symbols (d, h, b, 0) Metric conversion commands (cmpin, etc.), Statistics Mode estimated values (%, ¥, X,, %2) 7 |Multiplication where the multiplication sign is omitted Permutation (mPr), combination (nCr), complex number polar coordinate symbol (2) 9 |Dot product (¢) 10 | Multiplication (x), division (=) 11 | Addition (+), subtraction (—) 12 | and (logical operator) 13 Jor, xor, xnor (logical operators) Note: When squaring a negative value (such as -2), the value being squared must be enclosed in parentheses (CO (©)20) 4) ()). Since x? has a higher priority than the negative sign, inputting (©) 2) E) would result in the squaring of 2 and then appending a negative sign to the result. Always keep the priority sequence in mind, and enclose negative values in parentheses when required. Inputting an Expression Using Natural Textbook Format (Mathl/MathO or Mathl/DecimalO Only) Formulas and expressions that include fractions and/or special functions such as J can be input in natural textbook format by using templates that appear when certain keys are pressed. 1 3 Example: 35 + 55 1. Press Gir) ()(=5). al e This inputs a mixed fraction template. o 2. Input values into the integer, numerator, and.denominator areas of the template. 8B1®2 | 34 3. Do the same to input the remainder of the expression. 35+53 © & & H(=5)5030 25) 10 Tip: While the input cursor is located within the input area of a template (mixed fractions, integration (J), and sum (=)), pressing ® jumps to the position immediately following (to the right) of the template, while pressing @ jumps to the position immediate before (to the left of) it. T sg fr oa me |P2 Note e When you press [E) and obtain a calculation result, part of the expression you input may be cut off. If you need to view the entire input expression again, press &d) and then use @ and ® to scroll the input expression. e Nesting of functions and parentheses is allowed. Further input will become impossible if you nest too many functions and/or parentheses. To undo operations (MathlI/MathO or Mathl/DecimalO only): To undo the last key operation, press (0&1) (UNDO). To redo a key operation you have just undone, press (1) (UNDO) again. Using Values and Expressions as Arguments (Mathl/ MathO or Mathi/DecimalO only) 7 Example: To input 1+ z and then change it to 1+ a 176 @ @ @ @ &F) GAINS) 14g i+|F Pressing (EJ (INS) in the above example causes z to be the argument of the function input by the next key operation (4). Overwrite Input Mode (Linel/LineO or Linel/DecimalO only) In the overwrite mode, text you input replaces the text at the current cursor location. You can toggle between the insert and overwrite modes by performing the operations: (£1) (INS). The cursor appears as “I” in the insert mode and as “—” in the overwrite mode. Toggling Calculation Results While Mathl/MathO or Mathl/DecimalO is selected for Input/Output on the setup menu, each press of will toggle the currently displayed calculation result between its fraction form and decimal form, its J form and decimal form, or its z form and decimal form. 1+6= on = 05235987756 (Mathl/MathO) SF) KO) (x) AoE) an —SJ— 0.5235987756 (/2 + 2) x /3 = 5.913591358 = 6 + 23 (Mathl/DecimalO) Om20 420) K)ti3E) 5.913591358 —k— V6 + 23 Regardless of what is selected for Input/Output on the setup menu, each press of will toggle the currently displayed calculation result between its decimal form and fraction form. Important e With certain calculation results, pressing the key will not convert the displayed value. e You cannot switch from decimal form to mixed fraction form if the total number of digits used in the mixed fraction (including integer, numerator, denominator, and separator symbol) is greater than 10. To obtain a decimal value calculation result while Mathl/MathO or Linel/ LineO is selected Press (=) (=) instead of &) after inputting a calculation. Basic Calculations Fraction Calculations Note that the input method for fractions depends on the current Input/ Output setting on the setup menu. 2,,1_ 13 2B30WtAB(*s) 13 Z+15=G (Mathl/Matho) ‘Sion t 10 (Linel/LineO) 23H1H182E) 1346 Note e Mixing fractions and decimal values in a calculation while something other than Mathl/MathO is selected will cause the result to be displayed as a decimal value. e Fractions in calculation results are displayed after being reduced to their lowest terms. e To switch a calculation result between improper fraction and mixed fraction form, press Gen) (aba dy, Percent Calculations Inputting a value and pressing [ans] (%) causes the input value to become a percent. 150 x 20% = 30 150 (<) 20 GH) (Ans) (%) [E) 30 Calculate what percentage of 880 is 660. (75%) 660 ) 880 Gar) Brs) (%) E) 75 Discount 3500 by 25%. (2625) 3500 =) 3500 (x) 25 fue) (Ans) (%) (=) 2625 Degree, Minute, Second (Sexagesimal) Calculations The syntax below is for inputting a sexagesimal value: {degrees} {minutes} {seconds} ). Note that you must always input something for the degrees and minutes, even if they are zero. 2°20'30” + 9’30” = 2°30’00” 26) 20F*)30 bs) HOF) 9&)30&4) E) 2°30'0” Convert 2°30'0” to its decimal equivalent. 2.5 (Converts decimal to sexagesimal.) 2°30’0” Multi-Statements You can use the colon character (:).to connect two or more expressions and execute them in sequence from left to right when you press [E). 34+3:3x3 3) 38 :) 3&)3€) 6 (=) 9 Note: Inputting a colon (:) while Linel/LineO or Linel/DecimalO is selected for the Input/Output setting on the setup menu causes a newline operation to be performed. Using Engineering Notation Transform the value 1234 to engineering 1234 (=) 1234 notation, shifting the decimal mark to the (ENG) 1.234103 right, and then to the left. xg) 1234x100 ENG) (—) 1.234x103 )(—) 0.001234x10° Note: The calculation result shown above is what appears when Off is selected for the Engineer Symbol setting on the setup menu. Using Engineering Symbols Your calculator supports the use of 11 engineering symbols (m, x, n, p, f, k, M, G, T, P, E) that you can use for input of value or for calculation result display. To display calculation results with engineering symbols On the setup menu, change the Engineer Symbol setting to On. 11 Example Input and Calculations Using Engineering Symbols To input 500k 1:m 2:k 3:n 500 (rt) (3) (Engineer Symbol) ain 2ih ork AIP B:E @(k)S) 500k To calculate 999k (kilo) + 25k (kilo) = 1.024M (Mega) = 1024k (kilo) = 1024000 999 (ort) (3) (Engineer Symbol) (6) (k) @) 25 (ety) (3) (Engineer Symbol) (6) (k) E) 1.024M Eg) 1024k Eng) 1024000 fa (<) 1024k Prime Factorization In the Calculate Mode, a positive integer no more than 10 digits long can be factored to prime factors. To perform prime factorization on 1014 10146) 1014 (3)(FACT) 2x3x13? To re-display the unfactored value, press &)(FACT) or (). Note: The types of values described below cannot be factored, even if they have 10 or fewer digits. e One of the prime factors of the value is 1,018,081 or greater. e Two or more of the prime factors of the value have more than three digits. The part that cannot be factored will be enclosed in parentheses on the display. Calculation History and Replay Calculation History An & and/or ¥ at the top of the display indicates that there is more calculation history content above and/or below. You can scroll through calculation history contents using @ and @. 24+2=4 2H)22) 4 3+3=6 34)3) 6 (Scrolls back.) @ 4 Note: Calculation history data is all cleared whenever you press (N), when you change to a different calculation mode, when you change the Input/ Output setting, or whenever you perform a RESET operation (“Initialize All” or “Setup Data’). Replay While a calculation result is on the display, you can press @ or ® to edit the expression you used for the previous calculation. 4x3+2=14 40)3)2E) 14 4x3-7=5 (Continuing) @ bY) bo &)7E) 5 12 Using Memory Functions Answer Memory (Ans) The last calculation result obtained is stored in Ans (answer) memory. To divide the result of 14 x 13 by 7 14(%) 13) 182 Ans+7 (Continuing) &)7E) 26 123 + 456 = 579 123) 456E) 579 789 - 579 = 210 (Continuing) 789) Gs) E) 210 Variables (A, B, C, D, E, F, M, x, y) You can assign values to variables and use the variables in calculations. To assign the result of 3 + 5 to variable A 36)5 0) H(A) 8 To multiply the contents of variable A by 10 (Continuing) O)(A)&) 10&)* 80 To recall the contents of variable A AR Befc2) C « > cones Dep Ages rl42 ontinuin SHIFT] RECALL)*? JE= = ( 9) ( ) H=7-211 pant? eT 3 ye20 15" 19" @C)\(A)Z) 8 To clear the contents of variable A 0 (S10) (S) (A) 0 *1 Input a variable as shown here: press and then press the key that corresponds to the desired variable name. To input x as the variable name, you can press DO) (x) or fx). *2 Pressing (H#) (S10) (RECALL) displays a screen that shows the values currently assigned to variables A, B, C, D, E, F, M, x, and y. On this screen, values are always displayed using the “Norm 1” Number Format. To close the screen without recalling a variable value, press &d. Independent Memory (M) You can add calculation results to or subtract results from independent memory. The “M” appears on the display when there is any value other than zero stored in independent memory. To clear the contents of M 0 (S19) (We) (M) 0 To add the result of 10 x 5 toM (Continuing) 100<)5@&) 50 To subtract the result of 10 + 5 from M (Continuing) 10G)5Gam) @)(M-) 15 To recall the contents of M (Continuing) GH) (S10) (RECALL) @)(M)E) 35 Note: Variable M is used for independent memory. You also can call M and use it in a calculation you are inputting. 13 Clearing the Contents of All Memories Ans memory, independent memory, and variable contents are retained even if you press (¢), change the calculation mode, or turn off the calculator. Perform the procedure below when you want to clear the contents of all memories. (9)(RESET) 2) (Memory) E) (Yes) Function Calculations Note: To interrupt an ongoing calculation before its result appears, press . Pi z: zis displayed as 3.141592654, but a = 3.14159265358980 is used for internal calculations. Natural Logarithm Base e: ¢ is displayed as 2.718281828, but e = 2.71828182845904 is used for internal calculations. sin, cos, tan, sin’, cos", tan’: Specify the angle unit before performing calculations. sin 30° = 5 (Angle Unit: Degree) (sin) 30D) &) 5 sinh, cosh, tanh, sinh’, cosh", tanh: Input a function from the menu that appears when you press () (Hyperbolic Func)*'. The angle unit setting does not affect calculations. *1 Depending on the calculation mode, you should press @W. *, ', 8: These functions specify the angle unit. ° specifies degree, " radian, and £ gradian. Input a function from the menu that appears when you perform the following key operation: (2)(Angle Unit)*2. n/2 radians = 90° (Angle Unit: Degree) 0 GF A) (@) 20) GE BAngle uni 0S) 90 *2 Depending on the calculation mode, you should press @BC). 10", e@: Exponential functions. e& x 2 = 296.8263182 (Mathl/MathO) On) (e#) 506 28) 296.8263182 (Linel/LineO) Me) 5026) 296.8263182 log: Logarithmic function. Use (GO) (log) to input log,b as log (a, 4). Base 10 is the default setting if you do not input anything for a. 109191000 = log 1000 = 3 ()(log) 10000) E) 3 log.16 = 4 &7) (O) (log) 2&7) O(,) 160 &) 4 The key also can be used for input, but only while Math!/MathO or Mathl/DecimalO is selected for Input/Output on the setup menu. In this case, you must input a value for the base. log216 = 4 (os.t 2 @ 16) 4 In: Natural logarithm to base e. In 90 (= log, 90) = 4.49980967 (n)900) &) 4.49980967 x2, x3, x, Vem, Vm, "VG, x1: Powers, power roots, and reciprocals. (1+ 1)? = 16 O11 226) 16 (5?) = 15625 O5&) @)(<3)E) 15625 32 = 2 (MathI/MathO) (Vo) 5632) 2 14 (Linel/LineO) 5 eA &)("Vo) 320) &) 2 V2 x3 = 3,2 = 4.242640687... (Mathl/MathO) 20 35) 32 (Linel/LineO) 20) &)3E) 4.242640687 f=, &1, Z=: These functions use Gauss-Kronrod methods to perform numerical integration, approximation of the derivative based on central difference method, and calculation of the sum of a specific range of f(x). Input Syntax (1) When Mathl/MathO or Mathl/DecimalO is selected (2) When Linel/LineO or Linel/DecimalO is selected b b ()) [rea KIO)! Y Fe) (2) fw, a, b, tol) Eo, a, tol) ¥ FO), ab) “1 tol specifies tolerance, which becomes 1 x 10° when nothing is input for tol. *2 tol specifies tolerance, which becomes 1 x 10°'!° when nothing is input for tol. *3.a and b are integers that can be specified within the range of -1.x 10'° <ab<1x 10". Integration and Differential Calculation Precautions e When using a trigonometric function in fix), specify “Radian” as the angle unit. e A smaller tol value increases precision, but it also increases calculation time. When specifying tol, use value that is 1 x 10° or greater. e Integration normally requires considerable time to perform. e Depending on the content of f(x), positive and negative values within the region of integration, or the region.of integration, calculation error that exceeds the allowable range may be generated, causing the calculator to display an error message. e With derivative calculations, non-consecutive points, abrupt fluctuation, extremely large or small points, inflection points, and the inclusion of points that cannot be differentiated, or a differential point or a differential calculation result that approaches zero can cause poor precision or error. f “in oax (MathI/MathO) Sh) Oj) © 1 © Hi Hi} (ce) &) 1 (Linel/LineO) @ Cn) (a) 0 (x) Ge) 0(,) 1 fF) 0) (,) Ge) O(c) E) 1 To obtain the derivative at point x = 2/2 for the function y = sin(x) (Angle Unit: Radian) a (2) (x) ...(1) (Mathl/MathO) (Continued following (1)) iC) 0) (x) © 2E) 0 (Linel/LineO) (Continued following (1)) Ga) OD (,) BA) h(n) 20S) 0 5 Y @+1) =20 x=1 15 (Math!/MathO) (2) On) 101858) 20 (Linel/LineO) (x) (==) @w) OD (x) G4 Gr) OF (,) 1) O0(,) 50) 20 Pol, Rec: Pol converts rectangular coordinates to polar coordinates, while Rec converts polar coordinates to rectangular coordinates. ¢ Specify the angle unit before Pol(x. y) = (r, @ R 0) = performing calculations. ole, y) = (r, 4) ectr, 6) = (x, y) ¢ The calculation result for r and @ Y) P(x,y) Y)_P(r,0) and for x and y are each Pol r assigned respectively to Rec 0 variables x and y. 0 xX ¢ Calculation result 6 is displayed in the range of -180° < @ S$ 180°. To convert rectangular coordinates (V2, /2) to polar coordinates (Angle Unit: Degree) (Mathl/MathO) (Po) G20 & 0, B26 DS =2,0=45 To convert polar coordinates (./2, 45°) to rectangular coordinates (Angle Unit: Degree) (Mathl/MathO) Gar =) (Rec) ka) 2 © GHA) O(,) 450) &) x=1, y=1 x!: Factorial function. (5 + 3)! = 40320 O53) &F) (x!) E) 40320 Abs: Absolute value function. |2-7|x2=10 (Mathl/MathO) (CO (Abs) 26)7 © &)2E) 10 (Linel/LineO) CO(Abs) 2670) &)2E) 10 Ran#: Function that generates a pseudo random number in the range of 0.000 to 0.999. The resultis displayed as a fraction when Mathl/MathO is selected for Input/Output on the setup menu. To obtain random three-digit integers 1000 GF) G)(Ran#) E) 459 (The result differs with each execution.) RanInt#: Function that generates a pseudo random integer between a specified start value and end value. To generate random integers in the range of 1 to 6 a) (1 (RanInt)1 & O0(,) 6 &) 2 (The result differs with each execution.) nPr, nCr: Permutation (nPr) and combination (Cr) functions. To determine the number of permutations and combinations possible when selecting four people from a group of 10 Permutations: 10 Sa) &<) (nPr) 4E) 5040 Combinations: 10 Sa) (E)(nCr) 4E) 210 Rnd: Using the Rnd function causes decimal fraction values of the argument to be rounded in accordance with the current Number Format setting. For example, the internal and displayed result of Rnd(10 = 3) is 3.333 when the Number Format setting is Fix 3. Using the Norm 1 or Norm 2 setting cause the argument to be rounded off at the 11th digit of the mantissa part. To perform the following calculations when Fix 3 is selected for the number of display digits: 10 + 3 x 3 and Rnd(10 + 3)x 3 = (Mathl/DecimalO) (NEN (SETUP) (3) (Number Format) GO (Fix) B) 16 10&)3&)3E) 10.000 GF) (0) (Rnd) 10)30) &3) 9.999 QR Code Function Your calculator can display QR codes* that can be read by a smart device. * QR Code is a registered trademark of DENSO WAVE INCORPORATED in Japan and in other countries. Important e The operations in this section assume that the smart device being used has a QR code reader that can read multiple QR codes installed, and it can connect to the Internet. e Reading a QR code displayed by this calculator with a smart device will cause the smart device to access the CASIO website. Note: A QR code can be displayed by pressing (FTN) (QR) while the setup screen, a menu screen, an error screen, a calculation result screen in any calculation mode, or a table screen is displayed. For details, visit the CASIO website (wes.casio.com). Displaying a QR Code Example: To display the QR code for a calculation result in the calculator’s Calculate Mode and read it with a smart device 1. In the Calculate Mode, execute some calculation. 2. Press @1) (QR) to display the QR code. e The numbers in the lower right corner of the display shows the current QR code number and the total number of QR codes. To display the next QR code, press @ or (E). Note ¢ A OB indicator is displayed.at the top of the screen while the calculator is generating a QR code. ¢ To return to a previous QR code, press @ or (=) as many times as required to.scroll forward until it appears. 3. Use a smart device to read the QR code on the calculator display. e For information about how to read a QR code, refer to the user documentation of the QR code reader you are using. If you experience difficulty reading a QR code: While the QR code is displayed use & and © to adjust the display contrast of the QR code. This contrast adjustment affects QR code displays only. Important e Depending on the smart device and/or QR reader app being used, you may experience problems reading the QR codes produced by this calculator. e When the setup “QR Code” setting is “Version 3”, the calculator modes that can display QR codes are limited. If you try to display a QR code in a mode that does not support QR code display, the message “Not Supported (Version 3)” will appear. However, the QR code produced by this setting is easier to read with a smart device. e For more information, visit the CASIO website (wes.casio.com). To exit the QR code display: Press or (FTN) (QR). 12 17 Complex Number Calculations To perform complex number calculations, first enter the Complex Mode. You can use either rectangular coordinates (a+bi) or polar coordinates (720) to input complex numbers. Complex number calculation results are displayed in accordance with the Complex setting on the setup menu. (14+ i4+4(1 - i)? = -4 - 2i (Complex: a+bi)* Oi j)DEVMOWOib kj S 4 -2i 2245 = J2 + /2i (Angle Unit: Degree, Complex: a+bi) 2 Gary Ex) (2) 45E) v2 + y2i 2 + /2i = 2245 (Angle Unit: Degree, Complex: 20) 2 ® 20 BNE) 2245 * When raising a complex number to an integer power using the syntax (a +bi)", the power value can be within the following ranger=1 x 10'°°<n< 1 x 107°. Note e If you are planning to perform input and display of the calculation result in polar coordinate format, specify the angle unit before starting the calculation. e The 6 value of the calculation result is displayed in the range of -180°< @ = 180°. e Display of the calculation result while Linel/LineO or.Linel/DecimalO is selected will show a and bi (or r and @) on separate lines. Complex Mode Calculation Examples To obtain the conjugate complex number of 2 + 37 (Complex: a+bi) (2)(Conjugate) 24)3 &a (i) E) 2-31 To obtain the absolute value and argument of 1.4% (Angle Unit: Degree) Gam) CO (Abs) 1) &9 () &) y2 (Argument) 1G) &4) (i) &) 45 To extract the real part and imaginary part of 2 + 37 @) () (Real Part) 24)3 60 () 0) &) 2 my (4) (Imaginary Part) 2G)3&9 ()0) &) 3 Using a Command to Specify the Calculation Output Format 2 + y2i = 2245, 2245 = /2 + /2i (Angle Unit: Degree) 20 & ba)2® 9) (i) OW © Dz) EF) 2245 2 GF) EN) (2) 450) @ 2) (>a+ni)E) 2 + y2i Using CALC CALC lets you input calculation expressions that include one or more variable, assign values to the variables, and calculate the result. CALC can be used in the Calculate Mode and Complex Mode. You can use CALC to save the types of expressions below. © 2x + 3y, 2Av + 3By + C, A + Bi, etc. ex+yix(x+y), etc. ey=x°+x +43, ete. Note: During the time from when you press until you exit CALC by pressing &d, you should use Linear input procedures for input. 18 To store 3A + B and then substitute the following values to perform the calculation: A = 5, B = 10 3 Gm) (©) (A) GE) WH) G2}(B) | SA+BI 3SA+B SA+B ex) 5108) & > AO 25 Using SOLVE SOLVE uses Newton's method to approximate the solution of equations. Note that SOLVE can be used in the Calculate Mode only. SOLVE supports input of equations of the following formats. Examples: y = x + 5, x = sin(M), xy + C (Treated as xy + C = 0) Note e If an equation contains input functions that include an open parenthesis (such as sin and log), do not omit the closing parenthesis. e During the time from when you press (cxt¢} (SOLVE) until you exit SOLVE by pressing @9, you should use Linear input procedures for input. To solve x? + b = 0 for x when b = -2 Ce) OD (x) Ge) CE) Ge) G=)(B) a) (=) |x* +B=01 (cate) (SOLVE) Input an initial value for x (Here, 1) x? +B=0 input 1): Assign -2 to B: ©O)2E) Se Specify the variable you want to solve for x? +B=0 (Here we want to solve for x, so move the highlighting, to.x.): @® a Solve the equation: 4 el x° +B=0 (1) Variable solved for I x= 1.41421 3568 (2) Solution (3) (Left Side) — (Right Side) result (1) (2) (3) ¢ Solutions are always displayed in decimal form. e The closer the (Left Side) — (Right Side) result is to zero, the higher the accuracy of the solution. Important e SOLVE performs convergence a preset number of times. If it cannot find a solution, it displays a confirmation screen that shows “Continue:[=]”, asking if you want to continue. Press E) to continue or to cancel the SOLVE operation. e Depending on what you input for the initial value for x (Solution variable), SOLVE may not be able to obtain solutions. If this happens, try changing the initial value so they are closer to the solution. e SOLVE may not be able to determine the correct solution, even when one