EN fx-82AR X fx-95AR X User’s Guide CASIO Worldwide Education Website http://edu.casio.com Manuals are available in multi languages at http://world.casio.com/manual/calc Be sure to keep all user documentation handy for future reference.
CONTENTS About this Manual......................................................................................2 Initializing the Calculator........................................................................... 2 Precautions................................................................................................2 Getting Started.......................................................................................... 3 Calculation Mode............................................................
About this Manual • 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. • The contents of this manual are subject to change without notice. • 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.
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 (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.
The keypad has been shifted by pressing the 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 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 (: Degree, : 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.
General calculations (Calculate) Statistical and regression calculations (Statistics) Generate a number table based on one or two functions (Table) Equation and function calculations (Equation/Func)* Inequality calculations (Inequality)* Ratio calculations (Ratio)* * fx-95AR X only 3. Press to display the initial screen of the mode whose icon you selected. Note: The initial default calculation mode is the Calculate Mode.
LineI/LineO LineI/DecimalO Note: The initial default input/output format setting is MathI/MathO. Configuring the Calculator Setup To change the calculator setup 1. Press (SETUP) to display the setup menu. 2. Use and to scroll the setup menu, and then input the number displayed to the right*1 or left*2 of the item whose setting you want to change. *1 Language: Arabic *2 Language: English Items and Available Setting Options “◆” indicates the initial default setting.
Statistics On; Off◆ Specifies whether or not to display a Freq (frequency) column in the Statistics Mode Statistics Editor. Equation/Func (fx-95AR X only) On◆; Off Specifies whether or not to use complex numbers in solutions output in the Equation/Func Mode. Table f(x); f(x),g(x)◆ Specifies whether to use function f(x) only or the two functions f(x) and g(x) in the Table Mode. Decimal Mark Dot◆; Comma Specifies whether to display a dot or a comma for the calculation result decimal mark.
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 2 Functions that have parentheses (sin(, log(, etc.
Note • When you press 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 and then use and to scroll the input expression. • Nesting of functions and parentheses is allowed. Further input will become impossible if you nest too many functions and/or parentheses. To undo operations (MathI/MathO or MathI/DecimalO only): To undo the last key operation, press (UNDO).
• 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 MathI/MathO or LineI/ 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.
Using Engineering Notation Transform the value 1234 to engineering notation, shifting the decimal mark to the right, and then to the left. 1234 (←) (←) 1234 1.234×103 1234×100 1.234×103 0.001234×106 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 1014 1014 2×3×132 (FACT) To re-display the unfactored value, press (FACT) or .
123 + 456 = 579 789 − 579 = 210 123456 (Continuing) 789 579 210 Variables (A, B, C, D, E, F, M, x, y) You can assign values to variables and use the variables in calculations.
Pi π: π is displayed as 3.141592654, but π = 3.14159265358980 is used for internal calculations. Natural Logarithm Base 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: Specify the angle unit before performing calculations. 1 1 (Angle Unit: Degree) sin 30° = 30 2 2 -1 -1 -1 sinh, cosh, tanh, sinh , cosh , tanh : Input a function from the menu that appears when you press (Hyperbolic Func)*1.
• Specify the angle unit before performing calculations. • The calculation result for r and θ and for x and y are each assigned respectively to variables x and y. • Calculation result θ is displayed in the range of -180° < θ ≦ 180°. To convert rectangular coordinates 2, 2 to polar coordinates (Angle Unit: Degree) (MathI/MathO) (Pol)2(,)2 r=2, θ=45 To convert polar coordinates 2, 45° to rectangular coordinates (Angle Unit: Degree) (MathI/MathO) (Rec)2(,) 45 x=1, y=1 x!: Factorial function.
Statistical Calculations Perform the steps below to start a statistical calculation. 1. Press , select the Statistics Mode icon, and then press . 2. On the Select Type screen that appears, select a statistical calculation type.
Important: All data currently input in the Statistics Editor is deleted whenever you exit the Statistics Mode, switch between the single-variable and a paired-variable statistical calculation type, or change the Statistics setting on the setup menu. To delete a line: In the Statistics Editor, move the cursor to the line that you want to delete and then press .
(Regression) to • 𝑥, 𝑥1, 𝑥2 and 𝑦 are commands of the type that take an argument immediately before them. Ex 2: To input the single-variable data x = {1, 2, 2, 3, 3, 3, 4, 4, 5}, using the Freq column to specify the number of repeats for each items {xn; freqn} = {1;1, 2;2, 3;3, 4;2, 5;1}, and calculate the mean.
Simultaneous linear equations with two, three, or four unknowns Press (Simul Equation), and then use a number key ( to ) to specify the number of unknowns. Quadratic equations, cubic equations, or quartic equations Press (Polynomial), and then use a number key ( to ) to specify the polynomial degree. 3. Use the Coefficient Editor that appears to input coefficient values. • To solve 2x2 + x − 3 = 0, for example, press (Polynomial) in step 2. Use the Coefficient Editor that appears to input 213.
Creating a Number Table The Table Mode generates a number table based on one or two functions. 1 Example: To generate a number table for the functions 𝑓 𝑥 = 𝑥2 + and 2 1 g 𝑥 = 𝑥2 − for the range -1 ≦ 𝑥 ≦ 1, incremented in steps of 0.5 2 1. Press , select the Table Mode icon, and then press . 2. Configure settings to generate a number table from two functions. (SETUP)*1 or *2 (Table)(f(x),g(x)) *1: fx-82AR X *2: fx-95AR X 1 3. Input 𝑥2 + . 2 (x)12 4. Input 𝑥2 − 1 . 2 (x)12 5. Press .
Inequality Calculations (fx-95AR X only) You can use the procedure below to solve a 2nd, 3rd, or 4th degree inequality. 1. Press , select the Inequality Mode icon, and then press . 2. On the dialog box that appears, use a number key ( to ) to specify the degree of the inequality. 3. On the menu that appears, use keys through to select the inequality symbol type and orientation. 4. Use the Coefficient Editor that appears to input coefficient values.
• To solve 3 : 8 = X : 12 for X, for example, press in step 1, and then input the following for the coefficients (A = 3, B = 8, D = 12): 3812. • Pressing will reset all of the coefficients to one. 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.
• An attempt to generate a number table in the Table Mode whose conditions cause it to exceed the maximum number of allowable rows. → Narrow the table calculation range by changing the Start, End, and Step values, and try again. Before Assuming Malfunction of the Calculator... Note that you should make separate copies of important data before performing these steps. 1. Check the calculation expression to make sure that it does not contain any errors. 2.
In general, ±1 at the 10th digit for a single calculation. Precision for exponential display is ±1 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 Input Range Degree 0 ≦ |x| < 9 × 109 Radian 0 ≦ |x| < 157079632.7 Gradian 0 ≦ |x| < 1 × 1010 Degree Same as sinx, except when |x| = (2n−1) × 90. Radian Same as sinx, except when |x| = (2n−1) × π/2.
Pol(x, y) |x|, |y| ≦ 9.999999999 × 1099 𝑥2 + 𝑦2 ≦ 9.999999999 × 1099 Rec(r, θ) 0 ≦ r ≦ 9.999999999 × 1099 θ: Same as sinx °’ ” |a|, b, c < 1 × 10100 ; 0 ≦ b, c The display seconds value is subject to an error of ±1 at the second decimal place.
■■ Frequently Asked Questions ■■ How can I change a fraction form result produced by a division operation to decimal form? → While a fraction calculation result is displayed, press . To have calculation results initially appear as decimal values, change the setup menu Input/Output setting to MathI/DecimalO. What is the difference between Ans memory, independent memory, and variable memory? → Each of these types of memory acts like “containers” for temporary storage of a single value.
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