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http://world.casio.com/edu/ RCA502127-001V01 E fx-500ES User's Guide.
CASIO Europe GmbH Bornbarch 10, 22848 Norderstedt, Germany.
E-1 About this Manual • The MA TH mark indicates an example that uses Math f ormat, while the LINE mark indicates Linear format. For details about input/output f or mats, see “Specifying the Input/Output F ormat”. •K e ycap mar kings indicate what a ke y inputs or what function it performs.
E-2 • The cursor key is mark ed with four arro ws, indicating direction, as shown in the illustration nearby . In this User’s Guide, cursor ke y operation is indicated as f , c , d , and e .
E-3 Safety Precautions Be sure to read the f ollowing safety precautions bef ore using this calculator . K eep this manual handy for later ref erence. Caution This symbol is used to indicate inf or mation that can result in personal injury or mater ial damage if ignored.
E-4 Handling Precautions •B e sure to press the O ke y before using the calculator f or the first time. •E ven if the calculator is operating normally , replace the battery at least once every tw o years. A dead battery can leak, causing damage to and malfunction of the calculator .
E-5 Befor e Using the Calculator k Removing the Har d Case Bef ore using the calculator, slide its hard case do wnwards to remov e it, and then affix the hard case to the bac k of the calculator as shown in the illustration below . k T urning P ower On and Off •P ress O to turn on the calculator.
E-6 k About the Display Y our calculator has a 31-dot × 96-dot LCD screen. Example: k Display Indicator s Sample Display: This Means this: indicator: The keypad has been shifted b y pressing the 1 ke y. The ke ypad will unshift and this indicator will disappear when you press a k ey .
E-7 Important! •F or a very complex calculation or some other type of calculation that takes a long time to e xecute, the displa y ma y show only the abov e indicators (without any value) while it perf orms the calculation internally .
E-8 Specifying the Input/Output Format For this input/output format: P erf orm this key operation: Math 1N 1 (MthIO) Linear 1N 2 (LineIO) •M ath format causes fractions, irrational n umbers, and other e xpressions to be displa yed as the y are written on paper.
E-9 •N orm: Selecting one of the tw o availab le settings (Nor m1, Norm2) determines the range in which results will be display ed in non- e xponential format.
E-10 k Initializing the Calculation Mode and Other Settings P erf or ming the follo wing procedure initializes the calculation mode and other setup settings as shown belo w .
E-11 Example: sin 30 = LINE s 30)= Pressing s inputs “sin(”. •N ote that the input procedure is different if y ou want to use Math fo rm at. For more inf ormation, see “Inputting with Math Format”. Omitting the Multiplication Sign Y ou can omit the multiplication sign ( × ) in any of the f ollowing cases .
E-12 •N ormally the input cursor appears as a straight ver tical ( I ) or horizontal ( ) flashing line on the displa y screen. When there are 10 or fe wer bytes of input remaining in the current e xpression, the cursor changes shape to I to let you know .
E-13 Deleting a Character or Function Example: To correct the expression 369 × × 12 so it becomes 369 × 12 LINE Insert Mode: 369**12 dd Y Ov erwrite Mode: 369**12 ddd Y Correcting a Calculation Exa.
E-14 k Displaying the Location of an Err or If an error message (lik e “Math ERROR” or “Syntax ERR OR”) appears when you press = , press d or e . This will display the part of the calculation where the error occurred, with the cursor positioned at the error location.
E-15 Functions and Symbols Supported for Math Format Input • The “Bytes” column shows the n umber of bytes of memory that are used up by input. Function/Symbol Ke y Operation Bytes Improper F ra.
E-16 Example 3: To input (1 + ) 2 × 2 = MA TH (1+ ' 2 c 5 e ) Math w *2= •W hen you press = and obtain a calculation result using Math fo rm at, par t of the expression y ou input can be cut off as shown in the Example 3 screen shot. If you need to vie w the entire input e xpression again, press A and then press e .
E-17 Function Ke y Operation Resulting Expression Pow er Root 1 6 ( " ) Y ou can also incor porate v alues into the following functions. 1l ( $ ), 1i ( % ), ! , 6 , 1 ! ( # ), D Displaying Calculation Results in a Form that Includes ' ' ' ' ' 2, π , etc.
E-18 Example 3: sin –1 (0.5) = π (Angle Unit: Rad) MA TH 1 s (sin –1 ) 0.5= Math • The follo wing are the calculations for which ' fo rm (form that includes ' within irrational number display) results can be display ed. a. Arithmetic calculations of values with square root symbol ( ' ), x 2 , x 3 , x –1 b.
E-19 Example: The underlined areas in the abov e examples indicate what caused decimal f or m to be used. Reasons why the results of the e xamples are displayed in decimal form -V alue outside of the .
E-20 Basic Calculations (COMP) This section e xplains how to perform arithmetic, fraction, percent, and sexagesimal calculations . All calculations in this section are perf ormed in the COMP Mode ( N 1 ). k Arithmetic Calculations Use the + , - , * , and / ke ys to perf or m arithmetic calculations.
E-21 Omitting a Final Closed P arenthesis Y ou can omit any closed parenthesis ( ) ) immediately preceding operation of the = k ey at the end of a calculation.
E-22 Switching between Fraction and Decimal Format • The f or mat of the fraction depends on the currently selected fraction display f ormat setting (improper fraction or mixed fraction).
E-23 Sexa gesimal Calculations •P erforming the following types of se xagesimal calculations produces a se xagesimal result. -A ddition or subtraction of two se xagesimal values -M ultiplication or .
E-24 Using Calculation History Memory and Replay (COMP) Calculation history memor y maintains a record of each calculation e xpression y ou input and e xecute, and its result.
E-25 Using Calculator Memory Memory Name Description An sw er Memo ry Stores the last calculation result obtained. Independent Calculation results can be added to or subtracted Memory from independent memor y . The “M” display indicator indicates data in independent memory .
E-26 Inputting Answer Memory Contents into an Expression Example: To perform the calculations shown below: LINE 123+456= 789- G = k Independent Memory (M) Y ou can add calculation results to or subtract results from independent memory . The “M” appears on the display when independent memory contains a value.
E-27 Calculation Examples Using Independent Memory • If the “M” indicator is on the displa y , perform the procedure under “Clearing Independent Memor y” before perf orming this example.
E-28 Function Calculations This section explains ho w to use the calculator’ s built-in functions. The functions av ailable to you depends on the calculation mode y ou are in. The e xplanations in this section are mainly about the functions that are av ailable in all calculation modes.
E-29 k Con verting an Input V alue to the Calculator’ s Default Angle Unit After inputting a value , press 1G (DRG ' ) to displa y the angle unit specification menu shown belo w . Press the number ke y that corresponds to the angle unit of the input value .
E-30 k Po wer Functions and P ower Root Functions X 2 , X 3 , X –1 , X ^ , ' ' ' ' ' (, 3 ' ' ' ' ' (, ^ ' ' ' ' ' ( Append.
E-31 k Other Functions This section explains ho w to use the functions shown below . !, Abs(, Ran#, n P r , n C r , Rn d( F actorial (!) This function obtains the f actorials of a value that is zero or a positiv e integer .
E-32 Display Digits Setting: F ix or Sci The value is rounded to the specified n umber of digits. Example: 200 ÷ 7 × 14 = 400 LINE 200/7*14= (Specifies three decimal places.) 1N 6 (Fix) 3 FIX (Calculation is perf ormed inter nally using 15 digits.) 200/7= FIX *14= FIX The f ollowing performs the same calculation with rounding.
E-33 Tr a n sfor ming Displayed Va l ues Y ou can use the procedures in this section to transform a displa yed va lue to engineer ing notation, or to transform between standard f orm and decimal f or m. k Using Engineering Notation A simple ke y operation transforms a displa yed value to engineering notation.
E-34 Examples of S-D T ransf ormation Note that S-D transf ormation can take some time to perform. Example: Fr action → Decimal MA TH ' 5 c 6= Math •E ach press of the f key toggles betw een the two forms.
E-35 k Inputting Sample Data Displa ying the ST A T Editor Screen The ST A T editor screen appears after you enter the ST A T Mode from another mode. Use the ST A T menu to select a statistical calculation type. T o display the ST A T editor screen from another ST A T Mode screen, press 1 1 (ST A T) 2 (Data).
E-36 Example: To input the value 123.45 in cell X1 (Mov e the cursor to cell X1.) 123.45 S TAT = S TAT Registering a value causes the cursor to mov e down one cell.
E-37 Inserting a Line (1) On the ST A T editor screen, move the cursor to the line that will be under the line you will insert. (2) Press 1 1 (ST A T) 3 (Edit). (3) Press 1 (Ins). Important! • Note that the inser t operation will not work if the maximum n umber of lines allowed f or the ST A T editor screen are already used.
E-38 ST A T Menu Items Common Items Select this When you want to do this: menu item: 1 T ype Display the statistical calculation type selection screen 2 Data Display the ST A T editor screen 3 Edit Di.
E-39 V ar Sub-menu ( 1 1 (ST A T) 5 (V ar)) Select this When you want to obtain this: menu item: 1 n Number of samples 2 o Mean of the sample data 3 x σ n P opulation standard deviation 4 x σ n –1.
E-40 Sum Sub-menu ( 1 1 (ST A T) 4 (Sum)) Select this When you want to obtain this: menu item: 1 Σ x 2 Sum of squares of the X-data 2 Σ x Sum of the X-data 3 Σ y 2 Sum of squares of the Y -data 4 .
E-41 Appendix Linear Regression Calculation: <#047> to <#050> •E xamples <#048> through <#050> all use the data input in Example <#047>.
E-42 Statistical Calculation Model Equation Calculation T ype Formula ab Exponential Regression y = AB X <#057> (A•B^X) Po wer Regression (A•X^B) y = AX B <#058> Inverse Reg ression (1/X) y = A + X B <#059> Appendix Comparison of Regression Curves • The follo wing example uses the data input in Example <#047>.
E-43 Changing the Current Equation T ype Setting Press N 3 (EQN) to re-enter the EQN Mode. This clears all current EQN Mode input and displa ys the equation type menu described abov e. k Inputting Coefficients Use the coefficient editor screen to input the coefficients of an equation.
E-44 k Solution Display After inputting and registering values on the coefficient editor screen, press = to displa y the solution(s) for the equation. • Each press of = displa ys the next solution, if there is one . Pressing = while the final solution is displa yed returns to the coefficient editor screen.
E-45 (3) After making sure the function is the way you want, press = . • This displa ys the star t value input screen. • If the initial value is not 1, press 1 to specify the initial start v alue f or this example . (4) After specifying the star t value, press = .
E-46 k Start, End, and Step V alue Rules • Linear format is alwa ys used for v alue input. •Y ou can specify either values or calculation e xpressions (which m ust produce a numeric result) f or Star t, End, and Step. •S pecifying an End value that is less than the Start value causes an error , so the number table is not gener ated.
E-47 4. Prefix symbol: (–) (negative sign) 5. Statistical estimated value calculation: m , n , m 1 , m 2 6. P ermutations, combinations: n P r , n C r 7. Multiplication and division: × , ÷ Multiplication where sign is omitted: Multiplication sign omitted immediately before π , e , variab les (2 π , 5A, π A, etc.
E-48 k Calculation Ranges, Number of Digits, and Precision The calculation range , number of digits used for internal calculation, and calculation precision depends on the type of calculation y ou are performing. Calculation Range and Precision Calculation Range ± 1 × 10 –99 to ± 9.
E-49 Functions Input Range Po l( x , y ) x , y 9.999999999 10 99 x 2 + y 2 9.999999999 10 99 Rec( r , ) 0 r 9.
E-50 •Y our input exceeds the allo wable input r ange (par ticularly when using functions). • The calculation you are perf orming contains an illegal mathematical operation (such as division by zero). • Action •C heck the input values, reduce the n umber of digits, and try again.
E-51 Refer ence k Po wer Requirements and Battery Replacement This calculator is powered b y a single AAA-size battery (R03 (UM- 4)). Replacing the Battery Dim figures on the displa y of the calculator indicate that batter y power is low . Continued use of the calculator when the battery is low can result in improper operation.
E-52 Specifications Po wer Requirements: AAA-size battery: R03 (UM-4) × 1 Battery Life: Approximately 17,000 hours (continuous displa y of flashing cursor) Po wer Consumption: 0.
CASIO COMPUTER CO. , L TD . 6-2, Hon-machi 1-chome Shibuya-ku, Tokyo 151-8543, Japan SA0411-A Printed in China.
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