EN fx-570AR X fx-991AR 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 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 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.
1. Press to display the Main Menu. 2. Use the cursor keys to move the highlighting to the icon you want.
Input: Linear*2; Output: Decimal or fraction (LineI/LineO) Input: Linear*2; Output: Converted to decimal value (LineI/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.
Example: 1007(≈)* 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. Example: 17(≈)* 1.4286 × 10-1 (Sci 5) Norm: Displays calculation results in exponential format when they fall within the ranges below. Norm 1◆: 10-2 > |x|, |x| ≧ 1010, Norm 2: 10-9 > |x|, |x| ≧ 1010 Example: 1200(≈)* 5 × 10-3 (Norm 1), 0.
QR Code Specifies the version of the QR Code displayed when (QR) is pressed. Version 3: Indicates QR Code Version 3. Version 11◆: Indicates QR Code Version 11. To initialize calculator settings (except the Contrast setting) (RESET)(Setup Data)(Yes) Inputting Expressions and Values Basic Input Rules When you press the priority sequence of the input calculation will be evaluated automatically and the result will appear on the display.
6 Metric conversion commands (cmin, etc.), Statistics Mode estimated values (𝑥, 𝑦, 𝑥1, 𝑥2) 7 Multiplication where the multiplication sign is omitted 8 Permutation (nPr), combination (nCr), complex number polar coordinate symbol (∠) 9 Dot product (•) 10 Multiplication (×), division (÷) 11 Addition (+), subtraction (−) 12 and (logical operator) 13 or, xor, xnor (logical operators) Note: When squaring a negative value (such as -2), the value being squared must be enclosed in parentheses (2).
• 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). To redo a key operation you have just undone, press (UNDO) again.
Basic Calculations Fraction Calculations Note that the input method for fractions depends on the current Input/ Output setting on the setup menu. 23() 2 1 13 13 (MathI/MathO) +1 = 3 2 6 6 112 (LineI/LineO) 23112 136 Note • Mixing fractions and decimal values in a calculation while something other than MathI/MathO is selected will cause the result to be displayed as a decimal value. • Fractions in calculation results are displayed after being reduced to their lowest terms.
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, μ, 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.
Replay While a calculation result is on the display, you can press or to edit the expression you used for the previous calculation. 4 × 3 + 2 = 14 14 432 4×3−7=5 5 (Continuing) 7 Using Memory Functions Answer Memory (Ans) The last calculation result obtained is stored in Ans (answer) memory.
To subtract the result of 10 + 5 from M 15 (Continuing) 105(M−) To recall the contents of M 35 (Continuing) (RECALL)(M) Note: Variable M is used for independent memory. You also can call M and use it in a calculation you are inputting. 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.
4.49980967 90 x , x , , , , , x : Powers, power roots, and reciprocals. (1 + 1)2+2 = 16 16 1122 2 3 3 (5 ) = 15625 15625 5(x ) 5 32 = 2 (MathI/MathO) 2 () 532 (LineI/LineO) 2 5() 32 2 × 3 = 3 2 = 4.242640687... (MathI/MathO) 3 2 23 (LineI/LineO) 4.242640687 23 , , : 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).
(MathI/MathO) (Continued following (1)) (LineI/LineO) (Continued following (1)) 5 ∑ (π)2 0 (,)(π)2 0 𝑥 + 1 = 20 𝑥=1 20 ()(x)115 ()(x)1 (,) 1(,) 5 20 Pol, Rec: Pol converts rectangular coordinates to polar coordinates, while Rec converts polar coordinates to rectangular coordinates. • 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.
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 × 3 and Rnd(10 ÷ 3) × 3 (MathI/DecimalO) (SETUP)(Number Format)(Fix) 10.000 1033 9.
• When the setup “QR Code” setting is “Version 3”, the calculator modes that can display QR Code symbols are limited. If you try to display a QR Code in a mode that does not support QR Code display, the message “Not Supported (Version3)” will appear. However, the QR Code produced by this setting is easier to read with a smart device. • For more information, visit the CASIO website (wes.casio.com). To exit the QR Code display: Press or (QR).
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, 2Ax + 3By + C, A + Bi, etc. • x + y : x (x + y), etc. • y = x2 + x + 3, etc. Note: During the time from when you press until you exit CALC by pressing , you should use Linear input procedures for input.
• The closer the (Left Side) − (Right Side) result is to zero, the higher the accuracy of the solution. Important • 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 to continue or to cancel the SOLVE operation. • Depending on what you input for the initial value for x (solution variable), SOLVE may not be able to obtain solutions.
Note • Use the Freq (frequency) column to input the quantity (frequency) of identical data items. Display of the Freq column can be turned on (displayed) or off (not displayed) using the Statistics setting on the setup menu. • Pressing the key while the Statistics Editor is on the screen will display a statistical calculation screen for performing calculations based on the input data.
Summation: Σx*, Σx2*, Σy, Σy2, Σxy, Σx3, Σx2y, Σx4 (Summation) to Number of Items: n* / Mean: − 𝑥 *, − 𝑦 / Population Variance: σ2x*, σ2y / Population Standard Deviation: σx*, σy / Sample Variance: s2x*, s2y / Sample Standard Deviation: sx*, sy (Variable) to , to Minimum Value: min(x)*, min(y) / Maximum Value: max(x)*, max(y) When the single-variable statistical calculation is selected: (Min/Max) , When a paired-variable statistical calculation is selected: (Min/Max) to First
Ex 4: To determine the estimate value for y when x = 160 in the regression formula produced by logarithmic regression of the data in Ex 3. Specify Fix 3 for the result. (Perform the following operation after completing the operations in Ex 3.) 8106.898 160(Regression)(𝑦) Important: Regression coefficient, correlation coefficient, and estimated value calculations can take considerable time when there are a large number of data items.
Octal Decimal Hexadecimal Positive: 00000000000 ≦ x ≦ 17777777777 Negative: 20000000000 ≦ x ≦ 37777777777 -2147483648 ≦ x ≦ 2147483647 Positive: 00000000 ≦ x ≦ 7FFFFFFF Negative: 80000000 ≦ x ≦ FFFFFFFF Specifying the Number Mode of a Particular Input Value You can input a special command immediately following a value to specify the number mode of that value. The special commands are: d (decimal), h (hexadecimal), b (binary), and o (octal).
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.
Matrix Calculations Use the Matrix Mode to perform calculations involving matrices of up to 4 rows by 4 columns. To perform a matrix calculation, use the special matrix variables (MatA, MatB, MatC, MatD) as shown in the example below. 2 1 2 -1 × Example: 1 1 -1 2 1. Press , select the Matrix Mode icon, and then press . 2. Press (MatA)(2 rows)(2 columns). • This will display the Matrix Editor for input of the elements of the 2 × 2 matrix you specified for MatA. 3. Input the elements of MatA: 2111. 4.
• This will display the Matrix Editor with the contents of the copy destination. Matrix Calculation Examples 2 1 1 0 -1 , MatB = . 1 1 0 -1 1 To obtain the determinant of MatA (Det(MatA)) (Determinant) MatA To create a 2 × 2 identity matrix and add it to MatA (Identity(2) + MatA) The following examples use MatA = 1 (Identity) MatA Note: You can specify a value from 1 to 4 as the Identity command argument (number of dimensions).
110.5 6. Press to generate the number table. • Press to return to the screen in step 3. Tip • In the number table shown in step 6, you can change the value in the currently highlighted x cell. Changing the x value causes the f(x) and g(x) values in the same line to be updated accordingly. • If there is value in the x cell above the currently highlighted x cell, pressing or automatically inputs into the highlighted cell the value equal to the value of the cell above it plus the step value.
Vector Answer Memory Whenever the result of a calculation executed in the Vector Mode is a vector, the VctAns screen will appear with the result. The result also will be assigned to a variable named “VctAns”. The VctAns variable can be used in calculations as described below. • To insert the VctAns variable into a calculation, perform the following key operation: (VctAns).
Inequality Calculations 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.
3. Move the cell cursor to cell B1, and then perform the key operation below. (=)(A)7 Note: You can specify whether a formula in the edit box should be displayed as it is or as its calculation result value. To edit existing cell data 1. Move the cell cursor to the cell whose contents you want to edit, and then press (Edit Cell). • Cell contents in the edit box will change from align right to align left. A text cursor will appear in the edit box so you can edit its contents. 2.
To cut and paste spreadsheet data 1. Move the cursor to the cell whose data you want to cut and then press (Cut & Paste). • This enters paste standby. To cancel paste standby, press . 2. Move the cursor to the cell into which you want to paste the data you just cut, and then press . • Pasting data simultaneously deletes the data from the cell where you performed the cut operation, and automatically cancels paste standby.
(=)(Sum) (A)(:)(A) 3. Press . Batch Inputting the Same Formula or Constant into Multiple Cells You can use the procedures in this section to input the same formula or constant into a specific series of cells. Use the Fill Formula command to batch input a formula, or Fill Value to batch input a constant. Note: If the input formula or constant includes a relative reference, the relative reference will be input in accordance with the upper left cell of the specified range.
5. To apply the input, press . • This inputs the values of each calculation result into cells C1, C2, and C3. Recalculation Auto Calc is a setup item. Depending on the content of the spreadsheet, auto recalculation can take a long time to complete. When Auto Calc is disabled (Off), you need to execute recalculation manually as required. To perform recalculation manually: Press (Recalculate). Scientific Constants Your calculator comes with 47 built-in scientific constants.
Errors The calculator will display an error message whenever an error occurs for any reason during a calculation. While an error message is displayed, press or to return to the calculation screen. The cursor will be positioned at the location where the error occurred, ready for input. To clear 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.
• An attempt to generate a number table in the Table Mode whose conditions cause it to exceed the maximum number of allowable rows. • During batch input in the Spreadsheet Mode, input for Range is outside the allowable range or is a cell name that does not exist. → Narrow the table calculation range by changing the Start, End, and Step values, and try again. → For Range, input a cell name within the range of A1 through E45, using the syntax: “A1:A1”.
Important: Removing the battery will cause all of the calculator’s memory contents to be deleted. 1. Press (OFF) to turn off the Screw Screw Screw calculator. • To ensure that you do not accidentally turn on power while replacing the battery, slide the hard case onto the front of the calculator. 2. As shown in the illustration, remove the cover, remove the battery, and then load a new battery with its plus (+) and minus (−) ends facing correctly. 3. Replace the cover. fx-570AR X fx-991AR X 4.
sinh-1x 0 ≦ |x| ≦ 4.999999999 × 1099 cosh-1x 1 ≦ x ≦ 4.999999999 × 1099 tanhx 0 ≦ |x| ≦ 9.999999999 × 1099 tanh-1x 0 ≦ |x| ≦ 9.999999999 × 10-1 logx, lnx 0 < x ≦ 9.999999999 × 1099 10x -9.999999999 × 1099 ≦ x ≦ 99.99999999 ex -9.999999999 × 1099 ≦ x ≦ 230.
RanInt#(a, b) a < b; |a|, |b| < 1 × 1010; b − a < 1 × 1010 • Precision is basically the same as that described under “Calculation Range and Precision”, above. • xy, 𝑥 𝑦, 3 , x!, nPr, nCr type functions require consecutive internal calculation, which can cause accumulation of errors that occur with each calculation. • Error is cumulative and tends to be large in the vicinity of a function’s singular point and inflection point.
When I execute a function calculation, why do I get a calculation result that is completely different from older CASIO calculator models? → With a Natural Textbook Display model, the argument of a function that uses parentheses must be followed by a closing parenthesis. Failing to press after the argument to close the parentheses may cause unwanted values or expressions to be included as part of the argument. Example: (sin 30) + 15 (Angle Unit: Degree) Older (S-V.P.A.M.) Model: 15.
Reference Sheet Scientific Constants (CONST) (Universal) : : μ0 : lP : c0 : Z0 : tP : μB : G0 : e : KJ : me : mμ : re : λCp : μp : μμ : mn : a0 : λC : λCn : μe : mτ : u : k : c1 : F : Vm : c2 (Adopted Values) : g : KJ-90 : atm (Other) : t (Electromagnetic) (Atomic&Nuclear) (Physico-Chem) : h : ε0 : G : μN : Φ0 : RK : mp : α : γp : R∞ : μn : NA : R : σ : RK-90 Metric Conversion (CONV) (Length) (Area) (Volume) (Mass) (Veloci
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 www.casio-europe.com This mark applies in EU countries only. SA1502-A Printed in China © 2015 CASIO COMPUTER CO., LTD.
