Casio fx-991ZA PLUS II User Manual
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Casio fx-991ZA PLUS II User Manual

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fx-991ZA PLUS II
(NATURAL-V.P.A.M.)
User's Guide
CASIO Worldwide Education Website
https://edu.casio.com
Manuals are available in multi languages at
https://world.casio.com/manual/calc/
EN

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Summary of Contents for Casio fx-991ZA PLUS II

  • Page 1 PLUS II (NATURAL-V.P.A.M.) User’s Guide CASIO Worldwide Education Website https://edu.casio.com Manuals are available in multi languages at https://world.casio.com/manual/calc/...

  • Page 2: Table Of Contents

    Table of Contents Before Using the Calculator............ 4 About this Manual..................4 Initializing the Calculator................4 Precautions....................4 Safety Precautions..................4 Handling Precautions..................5 Getting Started..................5 Removing the Hard Case................5 Turning Power On and Off................6 Adjusting Display Contrast................6 Key Markings....................
  • Page 3 Clearing the Contents of All Memories............29 Function Calculations............30 Pi (π), Natural Logarithm Base e............30 Trigonometric Functions................ 30 Hyperbolic Functions................30 Angle Unit Conversion................31 Exponential Functions................31 Logarithmic Functions................31 Power Functions and Power Root Functions.........32 Integration Calculations................. 33 Integration Calculation Precautions.............. 34 Tips for Successful Integration Calculations..........
  • Page 4 Equation Calculations (EQN)..............62 Changing the Current Equation Type Setting..........63 EQN Mode Calculation Examples..............63 Matrix Calculations (MATRIX)..............65 Matrix Answer Memory................. 66 Assigning and Editing Matrix Variable Data..........66 Matrix Calculation Examples.................67 Creating a Numerical Table from Two Functions (TABLE).....68 Vector Calculations (VECTOR)..............71 Vector Answer Memory.................

  • Page 5: Before Using The Calculator

    Before Using the Calculator About this Manual • 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.

  • Page 6: Handling Precautions

    Replace the battery immediately after display figures become dim. fx-991ZA PLUS II: Every three years • A dead battery can leak, causing damage to and malfunction of the calculator. Never leave a dead battery in the calculator.

  • Page 7: Turning Power On And Off

    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 or approximately 60 minutes of non-use. Press the key to turn the calculator back Adjusting Display Contrast 1.

  • Page 8: Reading The Display

    • The following shows an example of how an alternate function operation is represented in this manual. Example: (sin )* 1 * Indicates the function that is accessed by the key operation ( ) before it. Note that this is not part of the actual key operation you perform.
  • Page 9 Display indicators This indicator: Means this: 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.

  • Page 10: Using Menus

    Calculation history memory data is available and can be replayed, or there is more data above/ below the current screen. The display currently shows an intermediate result Disp of a multi-statement calculation. Important! • For some type of calculation that takes a long time to execute, the display may show only the above indicators (without any value) while it performs the calculation internally.

  • Page 11: Calculation Modes And Calculator Setup

    Calculation Modes and Calculator Setup Calculation Mode Before starting a calculation, you must first enter the correct mode as indicated in the table below. When you want to perform this type of Perform this key operation: operation: General calculations (COMP) Complex number calculations (CMPLX) Statistical and regression calculations...

  • Page 12: Configuring The Calculator Setup

    Configuring the Calculator Setup Pressing (SETUP) displays the setup menu, which you can use to control how the calculations are executed and displayed. The setup menu has two screens, which you can jump between using Underlined ( ___ ) settings are initial defaults. Specifying the Display Format To specify this Perform this key operation:...
  • Page 13 MthIO-LineO (Number Format: Norm 1) MthIO-LineO (Number Format: Norm 2) LineIO (Number Format: Norm 1) Note • The calculator switches to Linear Display automatically whenever you enter the STAT, BASE-N, MATRIX, or VECTOR Mode. Specifying the Default Angle Unit To specify this as the Perform this key operation: default angle unit: Degrees...
  • Page 14 Number of Significant (SETUP) (Sci) Digits Exponential Display (SETUP) (Norm) (Norm 1) or Range (Norm 2) 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.
  • Page 15 Specifying the Complex Number Format To specify this complex number Perform this key operation: format: Rectangular (SETUP) (CMPLX) (a+bi) Coordinates Polar Coordinates (SETUP) (CMPLX) (r∠θ) Specifying the Stat Format Specifies whether or not to display a FREQ (frequency) column in the STAT Mode Statistics Editor.

  • Page 16: Initializing Calculator Settings

    Adjusting Display Contrast (SETUP) CONT See "Getting Started" for details. Initializing Calculator Settings Perform the following procedure to initialize the calculator, which returns the calculation mode to COMP and returns all other settings, including setup menu settings, to their initial defaults. (CLR) (Setup) (Yes)

  • Page 17: Inputting Expressions And Values

    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. Example 1: 4 ×...

  • Page 18: Inputting With Natural Display

    • When Natural Display is selected, pressing while the cursor is at the end of the input calculation will cause it to jump to the beginning, while pressing while the cursor is at the beginning will cause it to jump to the end. •...

  • Page 19: Using Values And Expressions As Arguments (Natural Display Only)

    ± a'√b ± d'√e ± a√b, ± d ± a√b, 1 ≦ a < 100, 1 < b < 1000, 1 ≦ c < 100 * The ranges of the coefficients (a, b, c, d, e, f) are as shown below. 0 ≦...

  • Page 20: Overwrite Input Mode (Linear Display Only)

    Overwrite Input Mode (Linear Display only) You can select either insert or overwrite as the input mode, but only while Linear Display is selected. 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: (INS).

  • Page 21: Basic Calculations

    Basic Calculations Use the key to enter the COMP Mode when you want to perform basic calculations. (COMP) Toggling Calculation Results While Natural Display is selected, each press of will toggle the currently displayed calculation result between its fraction form and decimal form, its √...

  • Page 22: Fraction Calculations

    Important! • Depending on the type of calculation result that is on the display when you press the key, the conversion process may take some time to perform. • With certain calculation results, pressing the key will not convert the displayed value.

  • Page 23: Percent Calculations

    • Fractions in calculation results are displayed after being reduced to their lowest terms. To switch a calculation result between improper fraction and mixed fraction form: (a b c d c ) Perform the following key operation: To switch a calculation result between fraction and decimal form: Press Percent Calculations Inputting a value and pressing...

  • Page 24: Multi-Statements

    Note • You must always input something for the degrees and minutes, even if they are zero. Example 1: 2°20’30” + 39’30” = 3°00’00” 3°0’0” Example 2: Convert 2°15’18” to its decimal equivalent. 2°15’18” (Converts sexagesimal to decimal.) 2,255 (Converts decimal to sexagesimal.) 2°15’18”...

  • Page 25: Remainder Calculations

    (←) 0,000123×10 Remainder Calculations You can use the ÷R function to obtain the quotient and remainder in a division calculation. Example: To calculate the quotient and remainder of 5 ÷ 2 (quotient = 2, remainder = 1) (MthIO-MathO) (÷R) 2 (LineIO) (÷R) 2 Note...

  • Page 26: Prime Factorization

    Prime Factorization In the COMP Mode, a positive integer no more than 10 digits long can be factored to prime factors. Example 1: To perform prime factorization on 1014 1014 1014 (FACT) When you perform prime factorization on a value that includes a factor that is prime number with more than three digits, the part that cannot be factored will be enclosed in parentheses on the display.

  • Page 27: Replay

    Example: 1 + 1 = 2 2 + 2 = 4 3 + 3 = 6 (Scrolls back.) (Scrolls back again.) 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 the following operations: (CLR) (Setup)
  • Page 28 (Continuing) Inputting Ans Memory Contents into an Expression Example: To perform the calculations shown below: (Continuing) 789 Using PreAns Memory Example: For T (Fibonacci sequence), determine the sequence from T to T . Note however, that T = 1 and T = 1.

  • Page 29: Variables (A, B, C, D, E, F, M, X, Y)

    = 3 + 2 Result: The sequence is {1, 1, 2, 3, 5}. Variables (A, B, C, D, E, F, M, X, Y) Your calculator has nine preset variables named A, B, C, D, E, F, M, X, and Y. You can assign values to variables and use the variables in calculations.

  • Page 30: Clearing The Contents Of All Memories

    To recall the contents of M (Continuing) Note • Variable M is used for independent memory. 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.

  • Page 31: Function Calculations

    Function Calculations Use the key to enter the COMP Mode when you want to perform function calculations. (COMP) Note: Using functions can slow down a calculation, which may delay display of the result. Do not perform any subsequent operation while waiting for the calculation result to appear.

  • Page 32: Angle Unit Conversion

    (sinh) 1 1,175201194 Example 2: cosh 1 = 0 (cosh Angle Unit Conversion °, : These functions specify the angle unit. ° specifies degrees, radians, and grads. Input a function from the menu that appears when you perform the following key operation: (DRG ).

  • Page 33: Power Functions And Power Root Functions

    (;) 16 (MthIO-MathO, MthIO-LineO) Example 3: ) = 6 (MthIO-MathO, MthIO-LineO) Example 4: = 8 (MthIO-MathO, MthIO-LineO) Example 5: To calculate ln 90 (= log 90) to three significant digits (Sci 3) (SETUP) (Sci) 4,50×10 Power Functions and Power Root Functions Note that the input methods for , and...

  • Page 34: Integration Calculations

    (MthIO-MathO) 3√2 4,243 (LineIO) 4,243 Example 6: √5 + √-27 = -1,290024053 (LineIO) -1,290024053 Example 7: = 12 (LineIO) Note • The following functions cannot be input in consecutive sequence: x . If you input 2 , for example, the final will be ignored.

  • Page 35: Integration Calculation Precautions

    Example 2: ∫( ; 1; 5; 1 × 10 ) = 0,8 (LineIO) (;) 1 (;) 5 π Example 3: ∫ (sin x + cos x) dx = π (tol: Not specified) (MthIO-MathO) (Angle unit: Rad) π (π) Integration Calculation Precautions •...

  • Page 36: Differential Calculations

    (1) Positive Part (2) Negative Part When integration values fluctuate widely due to minute shifts in the integration interval Divide the integration interval into multiple parts (in a way that breaks areas of wide fluctuation into small parts), perform integration on each part, and then combine the results.

  • Page 37: Differential Calculation Precautions

    (;) 1 Differential Calculation Precautions • Differential calculation can be performed in the COMP Mode only. • The following cannot be used in f(x): Pol, Rec, ÷R. The following cannot be used in f(x), a, b, or tol: ∫, d/dx, Σ. •...

  • Page 38: Rectangular-Polar Coordinate Conversion

    Note • The following cannot be used in f(x): Pol, Rec, ÷R. The following cannot be used in f(x), a, or b: ∫, d/dx, Σ. Rectangular-Polar Coordinate Conversion Pol converts rectangular coordinates to polar coordinates, while Rec converts polar coordinates to rectangular coordinates. (1) Rectangular Coordinates (Rec) (2) Polar Coordinates (Pol) Specify the angle unit before performing calculations.

  • Page 39: Factorial Function (!)

    (Rec) (;) 45 X = 1; Y = 1 Factorial Function (!) Example: (5 + 3)! = 40320 (x!) 40320 Absolute Value Function (Abs) Note that the input method is different depending upon whether you are using Natural Display or Linear Display. Example: |2 - 7| ×...

  • Page 40: Permutation (Npr) And Combination (Ncr)

    Example: To generate random integers in the range of 1 to 6 (RanInt) 1 (;) 6 (Results shown here are for illustrative purposes only. Actual results will differ.) Permutation (nPr) and Combination (nCr) Example: To determine the number of permutations and combinations possible when selecting four people from a group of 10.

  • Page 41: Greatest Common Divisor (Gcd) And Least Common Multiple (Lcm)

    Greatest Common Divisor (GCD) and Least Common Multiple (LCM) Greatest Common Divisor (GCD) GCD determines the greatest common divisor of two values. Example: To determine the greatest common divisor of 28 and 35 (GCD) 28 (;) 35 Least Common Multiple (LCM) LCM determines the least common multiple of two values.

  • Page 42: Using Solve

    (1) Prompts for input of a value for A (2) Current value of A To exit CALC: Example 2: To store A+Bi and then determine √3 + i, 1 + √3i using polar coordinates (r∠θ) (Angle Unit: Deg) (CMPLX) (CMPLX) ( r∠θ) 2∠30 2∠60...
  • Page 43 The following describes the types of equations whose solutions can be obtained using SOLVE. • Equations that include variable X: X + 2X - 2, Y = X + 5, X = sin(M), X + 3 = B + C SOLVE solves for X.

  • Page 44: Solution Screen Contents

    To exit SOLVE: Note • During the time from when you press (SOLVE) until you exit SOLVE by pressing , you should use Linear Display input procedures for input. Important! • Depending on what you input for the initial value for X (solution variable), SOLVE may not be able to obtain solutions.

  • Page 45: Scientific Constants

    Press to continue or to cancel the SOLVE operation. Example: To solve y = x - x + 1 for x when y = 3, 7, and 13. (SOLVE) Input an initial value for X (Here, input 1): Scientific Constants Your calculator comes with 40 built-in scientific constants that can be used in any mode besides BASE-N.
  • Page 46 (CONST) Example 2: To calculate C (MthIO-MathO) √ε μ (CONST) (ε (CONST) (μ The following shows the two-digit numbers for each of the scientific constants. 01: (mp) proton mass 02: (mn) neutron mass 03: (me) electron mass 04: (mμ) muon mass 05: (a ) Bohr radius 06: (h) Planck constant...

  • Page 47: Metric Conversion

    26: (Vm) molar volume of ideal 25: (k) Boltzmann constant gas (237,15K; 100kPa) 27: (R) molar gas constant 28: (C ) speed of light in vacuum 29: (C ) first radiation constant 30: (C ) second radiation constant 31: (σ) Stefan-Boltzmann constant 32: (ε...
  • Page 48 (CONV) (g oz) Example 3: To convert -31°C into Fahrenheit (LineIO) (CONV) (°C °F) The following shows the two-digit numbers for each of the metric conversion commands. 01: in cm 02: cm in 03: ft m 04: m ft 05: yd m 06: m yd 07: mile km 08: km mile...

  • Page 49: Using Calculation Modes

    Using Calculation Modes Complex Number Calculations (CMPLX) To perform complex number calculations, first press (CMPLX) to enter the CMPLX Mode. You can use either rectangular coordinates (a+bi) or polar coordinates (r∠θ) to input complex numbers. Complex number calculation results are displayed in accordance with the complex number format setting on the setup menu.

  • Page 50: Cmplx Mode Calculation Examples

    CMPLX Mode Calculation Examples Example 1: (1 - i) i (MthIO-MathO) (Complex number format: a +bi) Example 2: (1 + i) + (1 - i) = 0 (MthIO-MathO) Example 3: To obtain the conjugate complex number of 2 + 3i (Complex number format: a+bi) (CMPLX) (Conjg) 2...

  • Page 51: Inputting Data

    To select this type of statistical calculation: Press this key: (Regression formula shown in parentheses) Single-variable (X) (1-VAR) Paired-variable (X; Y), linear regression (A+BX) (y = A + Bx) Paired-variable (X; Y), quadratic regression (_+CX (y = A + Bx + Cx Paired-variable (X;...
  • Page 52 The Statistics Editor provides 40 rows for data input when there is an X column only or when there are X and Y columns, 20 rows when there are X and FREQ columns, or 26 rows when there are X, Y, and FREQ columns.

  • Page 53: Statistics Calculation Screen

    To delete all Statistics Editor contents: In the Statistics Editor, perform the following key operation: (STAT/DIST) (Edit) (Del-A). Statistics Calculation Screen The Statistics Calculation Screen is for performing statistical calculations with the data you input with the Statistics Editor. Pressing the while the Statistics Editor is displayed switches to the Statistics Calculation Screen.
  • Page 54 Display the Var sub-menu of commands for (Var) calculating the mean, standard deviation, etc. Display the Distr sub-menu of commands for Single-variable: normal distribution calculations (Distr) • For more information, see "Performing Normal Distribution Calculations". Display the Reg sub-menu of commands for regression calculations Paired-variable: •...
  • Page 55 Distr Sub-menu ( (STAT/DIST) (Distr)) (P() This menu can be used to calculate the (Q() probability of standard normal distribution. • For details see "Performing Normal (R() Distribution Calculations". ( t) MinMax Sub-menu ( (STAT/DIST) (MinMax)) Select this menu When you want to obtain this: item: (minX) Minimum value...
  • Page 56 (∑x Sum of biquadrate of the X-data Var Sub-menu ( (STAT/DIST) (Var)) Select this menu When you want to obtain this: item: Number of samples Mean of the X-data (σ Population standard deviation of the X-data Sample standard deviation of the X-data Mean of the Y-data (σ...
  • Page 57 (minY) Minimum value of the Y-data (maxY) Maximum value of the Y-data Commands when Quadratic Regression Calculation (_+CX ) Is Selected Reg Sub-menu ( (STAT/DIST) (Reg)) Select this menu When you want to obtain this: item: Regression coefficient constant term A Linear coefficient B of the regression coefficients Quadratic coefficient C of the regression...

  • Page 58: Calculating Estimated Values

    Results: Mean: 3, Population Standard Deviation: 1,154700538 Example 3: 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.

  • Page 59: Performing Normal Distribution Calculations

    Performing Normal Distribution Calculations While single-variable statistical calculation is selected, you can perform normal distribution calculation using the functions shown below from the menu that appears when you perform the following key operation: (STAT/DIST) (Distr). P, Q, R: These functions take the argument t and determine a probability of standard normal distribution as illustrated below.
  • Page 60 The initial default number mode when you enter the BASE-N Mode is decimal, which means input and calculation results use the decimal number format. Press one of the following keys to switch number modes: (DEC) for decimal, (HEX) for hexadecimal, (BIN) for binary, or (OCT) for octal.

  • Page 61: Specifying The Number Mode Of A Particular Input Value

    Base-n Mode Input/Output Ranges 0000000000000000 ≦ x ≦ 0111111111111111 1000000000000000 ≦ x ≦ 1111111111111111 Positive: Binary Negative: 00000000000 ≦ x ≦ 17777777777 20000000000 ≦ x ≦ 37777777777 Positive: Octal Negative: -2147483648 ≦ x ≦ 2147483647 Decimal 00000000 ≦ x ≦ 7FFFFFFF 80000000 ≦...

  • Page 62: Logical And Negation Operations

    Logical and Negation Operations Your calculator provides you with logical operators (and, or, xor, xnor) and functions (Not, Neg) for logical and negation operations on binary values. Use the menu that appears when you press (BASE) to input these logical operators and functions. Press this key: When you want to input this: Logical operator "and"...

  • Page 63: Equation Calculations (Eqn)

    Example 4: To determine the logical XNOR of 1111 and 101 (1111 xnor 1111 (BASE) (xnor) 101 1111111111110101 Example 5: To determine the bitwise complement of 1010 (Not(1010 (BASE) (Not) 1010 1111111111110101 Example 6: To negate (take the two's complement) of 101101 (Neg(101101 (BASE) (Neg) 101101...

  • Page 64: Changing The Current Equation Type Setting

    Quadratic equation + bX + c = 0) Cubic equation + bX + cX + d = 0) 3. Use the Coefficient Editor that appears to input coefficient values. • To solve 2x + x - 3 = 0, for example, press in step 2, and then input the following for the coefficients (a = 2, b = 1, c = -3): 2 •...
  • Page 65 (EQN) X + b Y = c (X=) -1 (Y=) Example 2: x - y + z = 2, x + y - z = 0, -x + y + z = 4 (EQN) X + b Y + c Z = d (X=) (Y=)

  • Page 66: Matrix Calculations (Matrix)

    Matrix Calculations (MATRIX) Use the MATRIX Mode to perform calculations involving matrices of up to 3 rows by 3 columns. To perform a matrix calculation, you first assign data to special matrix variables (MatA, MatB, MatC), and then use the variables in the calculation as shown in the example below.

  • Page 67: Matrix Answer Memory

    (2) "Ans" stands for "MatAns". Note: "MatAns" stands for "Matrix Answer Memory". See "Matrix Answer Memory" for more information. 7. Perform the next calculation (MatA+MatB): (MATRIX) (MatA) (MATRIX) (MatB) Matrix Answer Memory Whenever the result of a calculation executed in the MATRIX Mode is a matrix, the MatAns screen will appear with the result.

  • Page 68: Matrix Calculation Examples

    Example 2: To assign to MatC (MATRIX) (Dim) (MatC) (2×3) To edit the elements of a matrix variable: 1. Press (MATRIX) (Data), and then, on the menu that appears, select the matrix variable you want to edit. 2. Use the Matrix Editor that appears to edit the elements of the matrix. •...

  • Page 69: Creating A Numerical Table From Two Functions (Table)

    (MATRIX) (Trn) (MATRIX) (MatC) Example 6: Obtain the inverse matrix of MatA (MatA " " Note: You cannot use for this input. Use the key to input (MATRIX) (MatA) Example 7: Obtain the absolute value of each element of MatB (Abs(MatB)).
  • Page 70 2. Use the X variable to input two functions, one in the format f(x) and the other in the format g(x). • Be sure to input the X variable ( (X)) when generating a numerical table. Any variable other than X is handled as a constant. •...
  • Page 71 Example: To generate a numerical table for the functions f(x) = x for the range -1 ≦ x ≦ 1, incremented in steps of and g(x) = x 0,5 (MthIO-MathO) (TABLE) (SETUP) (TABLE) (f(x),g(x)) without inputting anything for g(x) will generate a ・Pressing numerical table based on f(x) only.

  • Page 72: Vector Calculations (Vector)

    Vector Calculations (VECTOR) Use the VECTOR Mode to perform 2-dimensional and 3-dimensional vector calculations. To perform a vector calculation, you first assign data to special vector variables (VctA, VctB, VctC), and then use the variables in the calculation as shown in the example below. Example 1: To assign (1, 2) to VctA and (3, 4) to VctB, and then perform the following calculations: (1, 2) + (3, 4)

  • Page 73: Vector Answer Memory

    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. •...

  • Page 74: Vector Calculation Examples

    2. Press (STO), and then perform one of the following key operations to specify the copy destination: (VctA), (VctB), or (VctC). • This will display the Vector Editor with the contents of the copy destination. Vector Calculation Examples The following examples use VctA = (1, 2) and VctB = (3, 4) from Example 1, and VctC = (2, -1, 2) from Example 2.

  • Page 75: Distribution Calculations (Dist)

    (SETUP) (Fix) (VECTOR) (VctA) (VECTOR) (Dot) (VECTOR) (VctB) (Abs) (VECTOR) (VctA) (Abs) (VECTOR) (VctB) (cos Distribution Calculations (DIST) You can use the procedures below to perform seven different types of distribution calculations. 1. Press (DIST) to enter the DIST Mode. 2.

  • Page 76: Variables That Accept Input

    4. After inputting values for all of the variables, press • This displays the calculation results. • Pressing while a calculation result is displayed will return to the input screen of the first variable. Note • To change the distribution calculation type after you enter the DIST Mode, press (STAT/DIST) (Type) and then select the distribution type you want.

  • Page 77: Dist Mode Calculation Examples

    (1) Distribution calculation type (2) Value at current cursor position (3) X: Sample data (4) Ans: Calculation results To edit sample data: Move the cursor to the cell that contains the data you want to edit, input the new data, and then press To delete data: Move the cursor to the sample data you want to delete and then press To insert sample data:...
  • Page 78 Result: 0,1760326634 • Pressing returns to the x input screen. Example 2: To calculate binomial probability for the sample data {10; 11; 12; 13; 14} when N = 15 and p = 0,6 (DIST) (Binomial PD) Display the List Screen: (List) •...

  • Page 79: Inequality Calculations (Ineq)

    x = binomial probability of 12 ≒ 0,063388 x = binomial probability of 13 ≒ 0,021942 x = binomial probability of 14 ≒ 4,7018 × 10 • Pressing returns to the N input screen. Pressing returns to the List Screen (input data samples are stored). Note •...

  • Page 80: Changing The Inequality Type

    • Pressing will clear all of the coefficients to zero. Note: The following operations are not supported by the Coefficient Editor: (M-), (STO). Pol, Rec, ÷R, and multi- statements also cannot be input with the Coefficient Editor. 5. After all the values are the way you want, press •...

  • Page 81: Special Solution Display

    Note: Solutions are displayed as shown here when Linear Display is selected ≧ 0 (MthIO-MathO) Example 3: - 3x + cX + d ≧ 0) (INEQ) + bX + cX + d) + bX Example 4: + 3x - x > 0 (MthIO-MathO) (INEQ) + bX + cX + d)

  • Page 82: Ratio Calculations

    • "No-Solution" appears on the solution screen when no solution exists for an inequality (such as X < 0). Ratio Calculations The RATIO Mode lets you determine the value of X in the ratio expression a : b = X : d (or a : b = c : X) when the values of a, b, c and d are known. The following shows the general procedure for using RATIO.

  • Page 83: Changing The Ratio Expression Type

    Important! • A Math ERROR will occur if you perform a calculation while 0 is input for a coefficient. Changing the Ratio Expression Type Re-enter the RATIO Mode and select the ratio expression type you want from the menu that appears. Changing the ratio expression type causes the values of all Coefficient Editor coefficients to change to zero.

  • Page 84: Technical Information

    Technical Information Errors The calculator will display an error message whenever an error occurs for any reason during a calculation. There are two ways to exit an error message display: Pressing to display the location of the error, or pressing to clear the message and calculation.
  • Page 85 • Your input exceeds the allowable input range (particularly when using functions). • The calculation you are performing contains an illegal mathematical operation (such as division by zero). Action: • Check the input values, reduce the number of digits, and try again. •...
  • Page 86 • You are trying to perform a calculation with matrices or vectors whose dimensions do not allow that type of calculation. Action: • Specify the dimension of the matrix or vector and then perform the calculation again. • Check the dimensions specified for the matrices or vectors to see if they are compatible with the calculation.

  • Page 87: Before Assuming Malfunction Of The Calculator

    Time Out Error Cause: • The current differential or integration calculation ends without the ending condition being fulfilled. Action: • Try increasing the tol value. Note that this also decreases solution precision. Before Assuming Malfunction of the Calculator... Perform the following steps whenever an error occurs during a calculation or when calculation results are not what you expected.

  • Page 88: Calculation Priority Sequence

    1. Press (OFF) to turn off the calculator. 2. On the back of the calculator, remove the screws and the cover. 3. Remove the battery, and then load a new battery with its plus (+) and minus (-) ends facing correctly. 4.

  • Page 89: Calculation Ranges, Number Of Digits, And Precision

    Negative sign ((-)), base-n symbols (d, h, b, o) Metric conversion commands (cm in, etc.), STAT Mode estimated values (x ˆ , y ˆ , x ˆ , x ˆ Multiplication where the multiplication sign is omitted Permutation (nPr), combination (nCr), complex number polar coordinate symbol (∠) Dot product (•) Multiplication (×), division (÷), remainder calculations (÷R)

  • Page 90: Function Calculation Input Ranges And Precision

    In general, ±1 at the 10th digit for a single calculation. Precision for exponential display is Precision ±1 at the least significant digit. Errors are cumulative in the case of consecutive calculations. Function Calculation Input Ranges and Precision Functions Input Range 0 ≦...
  • Page 91 0 ≦ x < 1 × 10 √x |x| < 1 × 10 |x| < 1 × 10 ; x ≠ 0 √x |x| < 1 × 10 0 ≦ x ≦ 69 (x is an integer) 0 ≦ n < 1 × 10 , 0 ≦...

  • Page 92: Specifications

    8 " (H) × 3" (W) × 6 8 " (D) Approximate Weight: 95 g (3,4 oz) including the battery Verifying the Authenticity of Your Calculator Use the steps below to verify that your calculator is a genuine CASIO calculator.
  • Page 93 • This displays the information below. - Calculator ID number (24-character string) - QR Code for accessing the Worldwide Education Service (https://wes.casio.com/calc/) 3. Access the above site. 4. Follow the instructions on the display to verify the authenticity of your calculator.

  • Page 94: Frequently Asked Questions

    (Setup) (Yes). ■ 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...
  • Page 95 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: Deg) Older (S-V.P.A.M.) Model: 15,5 Natural Textbook Display Model: (LineIO) 15,5 Failure to press here as shown below will result in calculation of sin 0,7071067812...
  • Page 96 © 2020 CASIO COMPUTER CO., LTD.

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