E fx-82ES PLUS fx-85ES PLUS fx-95ES PLUS fx-350ES PLUS User’s Guide CASIO Worldwide Education Website http://edu.casio.com CASIO EDUCATIONAL FORUM http://edu.casio.
Contents Important Information ............................................................. 2 Sample Operations .................................................................. 2 Initializing the Calculator ........................................................ 2 Safety Precautions .................................................................. 2 Handling Precautions.............................................................. 2 Removing the Hard Case ...............................................
Important Information • 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. • The contents of this manual are subject to change without notice. • 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.
• Do not subject the calculator to excessive impact, pressure, or bending. • Never try to take the calculator apart. • Use a soft, dry cloth to clean the exterior of the calculator. • Whenever discarding the calculator or batteries, be sure to do so in accordance with the laws and regulations in your particular area. * Company and product names used in this manual may be registered trademarks or trademarks of their respective owners.
Reading the Display The display of the calculator shows expressions you input, calculation results, and various indicators. Input expression Indicators Math Math Calculation result • If a indicator appears on the right side of the calculation result, it means the displayed calculation result continues to the right. Use C and B to scroll the calculation result display. • If a E indicator appears on the right side of the input expression, it means the displayed calculation continues to the right.
Using Menus Some of the calculator’s operations are performed using menus. Pressing or E, for example, will display a menu of applicable functions. The following are the operations you should use to navigate between menus. • You can select a menu item by pressing the number key that corresponds to the number to its left on the menu screen. • The indicator in the upper right corner of a menu means there is another menu below the current one. The > indicator means another menu above.
Deg Rad Gra Specifies degrees, radians or grads as the angle unit for value input and calculation result display. Note: In this manual, the B symbol next to a sample operation indicates degrees, while the * symbol indicates radians. Fix Sci Norm Specifies the number of digits for display of a calculation result. Fix: The value you specify (from 0 to 9) controls the number of decimal places for displayed calculation results.
Inputting Expressions and Values Basic Input Rules Calculations can be input in the same form as they are written. When you press the priority sequence of the input calculation will be evaluated automatically and the result will appear on the display. 4 s sin30 s (30 + 10 s 3) = 120 4 Q 30 30 10 2 * 3 *1 *3 *1 Input of the closing parenthesis is required for sin, sinh, and other functions that include parentheses. *2 These multiplication symbols (s) can be omitted.
5th Negative sign (–) Note: When squaring a negative value (such as –2), the value being squared must be enclosed in parentheses ( 2 7; ). Since x2 has a higher priority than the negative sign, inputting 2 7 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.
As shown above, the value or expression to the right of the cursor after )(INS) are pressed becomes the argument of the function that is specified next. The range encompassed as the argument is everything up to the first open parenthesis to the right, if there is one, or everything up to the first function to the right (sin(30), log2(4), etc.) This capability can be used with the following functions: , , ; ( ), :( ), 7( ), , , ( ), .
Important: • Depending on the type of calculation result that is on the display when you press the 5 key, the conversion process may take some time to perform. • With certain calculation results, pressing the 5 key will not convert the displayed value. • 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 symbols) is greater than 10.
Degree, Minute, Second (Sexagesimal) Calculations Performing an addition or subtraction operation between sexagesimal values, or a multiplication or division operation between a sexagesimal value and a decimal value will cause the result to be displayed as a sexagesimal value. You also can convert between sexagesimal and decimal. The following is the input format for a sexagesimal value: {degrees} {minutes} {seconds} .
4 2 (Scrolls back.) D (Scrolls back again.) D Note: Calculation history data is all cleared whenever you press , when you change to a different calculation mode, when you change the display format, or whenever you perform any reset operation. Replay While a calculation result is on the display, you can press B or C to edit the expression you used for the previous calculation. 4 × 3 + 2.5 = 14.5 1 4 3 4 × 3 − 7.1 = 4.9 (Continuing) B)))) 2.5 7.1 14.5 4.
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 To add the result of 10 s 5 to M 0 B(STO)J(M) 0 5J 50 5 J(M–) 15 BJ(M) 35 (Continuing) To subtract the result of 10 + 5 from M (Continuing) To recall the contents of M 10 (Continuing) 10 Note: Variable M is used for independent memory.
Function Calculations For actual operations using each function, see the “Examples” section following the list below. : P is displayed as 3.141592654, but P = 3.14159265358980 is used for internal calculations. e : e is displayed as 2.718281828, but e = 2.71828182845904 is used for internal calculations. sin, cos, tan, sin−1, cos−1, tan−1 : Trigonometric functions. Specify the angle unit before performing calculations. See 1 . sinh, cosh, tanh, sinh−1, cosh−1, tanh−1 : Hyperbolic functions.
nPr, nCr : Permutation (nPr) and combination (nCr) functions. See 13 . Rnd : The argument of this function is made a decimal value and then rounded in accordance with the current number of display digits setting (Norm, Fix, or Sci). With Norm 1 or Norm 2, the argument is rounded off to 10 digits. With Fix and Sci, the argument is rounded off to the specified digit. When Fix 3 is the display digits setting, for example, the result of 10 ÷ 3 is displayed as 3.
To calculate ' 2 = 4.242640687...) to three decimal 2 × 3 (= 3' places (Fix 3) (SETUP) (Fix) 2C 3 3' 2 4.243 1 2 3 4.
Statistical Calculations (STAT) To start a statistical calculation, perform the key operation (STAT) to enter the STAT Mode and then use the screen that appears to select the type of calculation you want to perform.
Important: • All data currently input in the Stat Editor is deleted whenever you exit the STAT Mode, switch between the single-variable and a pairedvariable statistical calculation type, or change the Stat Format setting on the setup menu. • The following operations are not supported by the Stat Editor: ;, ;(M–), B(STO). Pol, Rec, and multi-statements also cannot be input with the Stat Editor.
(STAT) (1-VAR) 1 2 3 4 5 AC 1 2 3 2 STAT (STAT) (Var) (M) (STAT) (Var) (Sx) Results: Mean: 3 3 Population Standard Deviation: 1.154700538 To calculate the linear regression and logarithmic regression correlation coefficients for the following paired-variable data and determine the regression formula for the strongest correlation: (x, y) = (20, 3150), (110, 7310), (200, 8800), (290, 9310). Specify Fix 3 (three decimal places) for results.
Equation Calculations (EQN) (fx-95ES PLUS only) You can use the following procedure in the EQN Mode to solve simultaneous linear equations with two or three unknowns, quadratic equations, and cubic equations. 1. Press (EQN) to enter the EQN Mode. 2. On the menu that appears, select an equation type.
x – y + z = 2, x + y – z = 0, –x + y + z = 4 (EQN) (anX + bnY + cnZ = dn) 1 1 1 2 1 1 1 0 1 1 1 4 Math (X=) 1 (Y=) 2 (Z=) 3 A A x2 + x + 3 = 0 4 (EQN) (aX2 + bX + c = 0) 1 1 3 4 A 2 1 ' + 2 2 i 2 1 ' (X2=) – – 2 2 i (X1=) – x2 – 2' 2x + 2 = 0 (EQN) (aX2 + bX + c = 0) 1 2 2 2 (X=) ' 2 x3 – 2x2 – x + 2 = 0 (EQN) (aX3 + bX2 + cX + d = 0) 1 2 1 2 A A (X1=) –1 (X2=) 2 (X3=) 1 Creating a Number Table from a Function (TABLE) TABLE generates a number table for
Step? Input the increment step (Default = 1). Note: The Step specifies by how much the Start value should be sequentially incremented as the number table is generated. If you specify Start = 1 and Step = 1, X sequentially will be assigned the values 1, 2, 3, 4, and so on to generate the number table until the End value is reached. • Inputting the Step value and pressing generates and displays the number table in accordance with the parameters you specified.
Note: The following operations are not supported by the Coefficient Editor: ;, ;(M–), B(STO). Pol, Rec, and multi-statements also cannot be input with the Coefficient Editor. 5. After all the values are the way you want, press . • This will display the solutions. • To return to the Coefficient Editor while the solutions are displayed, press . Note: Values cannot be converted to engineering notation on the solution screen.
Math 3x3 + 3 x2 – x 0 (INEQ) (aX3 + bX2 + cX + d) (aX3 + bX2 + cX + d 0) 3 3 1 Math Math Math CCC Note: Solutions are displayed as shown here when Linear Display is selected. Special Solution Display • “All ” appears on the solution screen when the solution of an inequality is all numbers. x2 > 0 (INEQ) (aX2 + bX + c) (aX2 + bX + c > 0) 1 0 0 Math • “NOT FOUND” appears on the solution screen when no solution exists for an inequality (such as X2 < 0).
Note: The following operations are not supported by the Coefficient Editor: ;, ;(M–), B(STO). Pol, Rec, and multi-statements also cannot be input with the Coefficient Editor. 4. After all the values are the way you want, press . • This displays the solution (value of X). Pressing again will return to the Coefficient Editor. Important: A Math ERROR will occur if you perform a calculation while 0 is input for a coefficient.
In general, p1 at the 10th digit for a single calculation. Precision for exponential display is p1 at the least significant digit. Errors are cumulative in the case of consecutive calculations. Precision Function Calculation Input Ranges and Precision Functions sinx cosx tanx sin–1x cos–1x DEG 0 \x\ 9 s 109 RAD 0 \x\ 157079632.7 GRA 0 \x\ 1 s 1010 DEG 0 \x\ 9 s 109 RAD 0 \x\ 157079632.7 GRA 0 \x\ 1 s 1010 DEG Same as sinx, except when \x\ = (2n–1) s 90.
°’ ” xy x y ' \a\, b, c 1 s 10100; 0 b, c The display seconds value is subject to an error of ±1 at the second decimal place.
Math B1 Clearing the Error Message While an error message is displayed, press to return to the calculation screen. Note that this also clears the calculation that contained the error. Error Messages Math ERROR Cause: • The intermediate or final result of the calculation you are performing exceeds the allowable calculation range. • Your input exceeds the allowable input range (particularly when using functions).
2. Make sure that you are using the correct mode for the type of calculation you are trying to perform. 3. If the above steps do not correct your problem, press the key. This will cause the calculator to perform a routine that checks whether calculation functions are operating correctly. If the calculator discovers any abnormality, it automatically initializes the calculation mode and clears memory contents. For details about initialized settings, see “Configuring the Calculator Setup”. 4.
Approximate Battery Life: fx-82/95ES PLUS: 17,000 hours (continuous display of flashing cursor) fx-350ES PLUS: 8,700 hours (continuous operation) fx-85ES PLUS: 3 years (based on one hour of operation per day) Power Consumption: 0.0002 W (fx-82/95/350ES PLUS) Operating Temperature: 0°C to 40°C (32°F to 104°F) Dimensions: fx-82/95/350ES PLUS: 13.8 (H) s 80 (W) s 162 (D) mm 1 /2 (H) s 31/8 (W) s 63/8 (D) fx-85ES PLUS: 11.
Manufacturer: CASIO COMPUTER CO., LTD. 6-2, Hon-machi 1-chome Shibuya-ku, Tokyo 151-8543, Japan Responsible within the European Union: CASIO EUROPE GmbH Casio-Platz 1 22848 Norderstedt, Germany This mark applies in EU countries only.
