Casio fx-300ES PLUS User Manual
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Casio fx-300ES PLUS User Manual

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fx-300ES PLUS
(2nd edition / 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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  • Page 1 PLUS (2nd edition / 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 Independent Memory (M)................33 Clearing the Contents of All Memories............34 Function Calculations............35 Pi (π), Natural Logarithm Base e............35 Trigonometric Functions................ 35 Hyperbolic Functions................35 Angle Unit Conversion................36 Exponential Functions................36 Logarithmic Functions................36 Power Functions and Power Root Functions.........37 Rectangular-Polar Coordinate Conversion..........38 Factorial Function (!)................
  • Page 4 Frequently Asked Questions..........62 Frequently Asked Questions..............62...

  • 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-300ES PLUS: Every 3 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 of non- use. Press the key to turn the calculator back on. Adjusting Display Contrast 1.

  • Page 8: Reading The Display

    • The following shows an example of how a key operation to select an on- screen menu item is represented in this manual. Example: (COMP) * Indicates the menu item that is selected by the number key operation ( ) before it. Note that this is not part of the actual key operation you perform.
  • Page 9 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. There is a value stored in independent memory. The calculator is standing by for input of a variable name to assign a value to the variable.

  • Page 10: Using Menus

    Using Menus Some of the calculator's operations are performed using menus. Pressing , 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.

  • 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) Statistical and regression calculations (STAT) Generation of a numerical table based on one...
  • Page 12 Natural Display (SETUP) (MthIO) (LineO) (MthIO-LineO) Linear Display (SETUP) (LineIO) (LineIO) Natural Display (MthIO-MathO, MthIO-LineO) causes fractions, irrational numbers, and other expressions to be displayed as they are written on paper. MthIO-MathO displays input and calculation results using the same format as they are written on paper.
  • Page 13 Note • The calculator switches to Linear Display automatically whenever you enter the STAT Mode. Specifying the Default Angle Unit To specify this as the Perform this key operation: default angle unit: Degrees (SETUP) (Deg) Radians (SETUP) (Rad) Grads (SETUP) (Gra) 90°= π/2 radians = 100 grads Specifying the Number Format...
  • Page 14 format. Outside the specified range, results are displayed using non- > |x|, |x| ≧ 10 exponential format. > |x|, |x| ≧ 10 Norm 1: 10 Norm 2: 10 Example: (LineIO) 1 ÷ 200 = 5 × 10 (Norm 1) 0.005 (Norm 2) Specifying the Fraction Display Format To specify this fraction display...

  • Page 15: Initializing Calculator Settings

    To specify this: Perform this key operation: Use recurring decimal (SETUP) (Rdec) (ON) form Do not use recurring (SETUP) (Rdec) (OFF) decimal form Specifying the Decimal Point Display Format Specifies whether to display a dot or a comma for the calculation result decimal point.
  • Page 16 Number Format Norm 1 Fraction Display Format Stat Format Table Format f(x),g(x) Recurring Decimal Format Decimal Point...

  • 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

    Note • Mixing fractions and decimal values in a calculation while Linear Display is selected will cause the result to be displayed as a decimal value. • Results of calculations that mix fraction and decimal values are always decimal. • 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 )

  • Page 24: Multi-Statements

    You also can convert between sexagesimal and decimal. The following is the input format for a sexagesimal value: {degrees} {minutes} {seconds} Note • You must always input something for the degrees and minutes, even if they are zero. Example 1: 2°20’30”...

  • Page 25: Remainder Calculations

    (←) 0.123×10 (←) 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...

  • Page 26: Recurring Decimal Calculations

    • When the quotient is not a positive integer, or if the remainder is not a positive integer or positive fractional value Example: (÷R) 2 → Calculated as: -5 ÷ 2 Recurring Decimal Calculations Your calculator uses a recurring decimal when you input a value. Calculation results also can be displayed using recurring decimal form whenever applicable.
  • Page 27 428571 Example 3: To calculate 1.021 + 2.312 ( ) 021 ( ) 312 Calculation result displayed as recurring decimal value: Note • You can specify up to 14 decimal places for the recurring decimal period. If you input more than 14 decimal places, the value will be treated as a terminating decimal and not a recurring decimal.
  • Page 28 Decimal value according to Norm 1 setting: Return to initial display format (fraction): Example 2: 1 ÷ 7 = = 0.142857 = 0.1428571429 (Norm 1) (MthIO- MathO) Display as fraction: Display as recurring decimal: Return to initial display format (Norm 1): Example 3: = 0.142857 = 0.1428571429 (Norm 1) (LineIO) Display as recurring decimal:...
  • Page 29 Example 4: 1 ÷ 7 = 0.1428571429 (Norm 1) = = 0.142857 (LineIO) Display as fraction: Display as recurring decimal: Return to initial display format (Norm 1): Conditions for Displaying a Calculation Result as a Recurring Decimal If a calculation result satisfies the following conditions, pressing will display it as a recurring decimal value.

  • Page 30: Prime Factorization

    ( ) 3 ( ) 45 Example 2: 1.6 + 2.8 = 4.5 (MthIO-MathO) ( ) 6 ( ) 8 1234 Example 3: To confirm the following: 0.123 = , 0.1234 = , 0.12345 9999 12345 (MthIO-MathO) 99999 1234 9999 12345 99999 Prime Factorization...

  • Page 31: Calculation History And Replay

    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. Example 2: To perform prime factorization on 4104676 (= 2 ×...

  • Page 32: Replay

    (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) (Yes), (CLR) (All)
  • Page 33 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 34: Variables (A, B, C, D, E, F, M, X, Y)

    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. Example: To assign the result of 3 + 5 to variable A (STO) To multiply the contents of variable A by 10...

  • Page 35: Clearing The Contents Of All Memories

    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. PreAns memory contents are retained even if you press and turn off the calculator without exiting the COMP Mode.

  • Page 36: 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 37: 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 38: 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 39: Rectangular-Polar Coordinate Conversion

    (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 40: Factorial Function (!)

    Specify the angle unit before performing calculations. The calculation result for r and θ and for x and y are each assigned Calculation result θ is displayed in the range of -180° < θ ≦ 180°. respectively to variables X and Y. Example 1: To convert rectangular coordinates (√2, √2) to polar coordinates (Angle unit: Deg)

  • Page 41: Random Number (Ran#)

    Random Number (Ran#) Function that generates a pseudo random number in the range of 0.000 to 0.999. The result is displayed as a fraction when Natural Display is selected. Example: Generate three 3-digit random numbers. The random 3-digit decimal values are converted to 3-digit integer values by multiplying by 1000.

  • Page 42: Rounding Function (Rnd)

    Rounding Function (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.

  • Page 43: Integer Part Of A Value (Int) And Largest Integer That Does Not Exceed A Value (Intg)

    Integer Part of a Value (Int) and Largest Integer that does not Exceed a Value (Intg) Integer Part of a Value (Int) Extracts the integer part of a value. Example: To extract the integer part of -3.5 (Int) Largest Integer that does not Exceed a Value (Intg) Determines the largest integer that does not exceed a value.

  • Page 44: Using Calculation Modes

    Using Calculation Modes 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. To select this type of statistical calculation: Press this key: (Regression formula shown in parentheses) Single-variable (X)

  • Page 45: Inputting Data

    Note • When you want to change the calculation type after entering the STAT Mode, perform the key operation (STAT) (Type) to display the calculation type selection screen. Inputting Data Use the Statistics Editor to input data. Perform the following key operation to display the Statistics Editor: (STAT) (Data).

  • Page 46: Statistics Calculation Screen

    To change the data in a cell: In the Statistics Editor, move the cursor to the cell that contains the data you want to change, input the new data, and then press To delete a line: In the Statistics Editor, move the cursor to the line that you want to delete and then press To insert a line: In the Statistics Editor, move the cursor to the location where you want to...
  • Page 47 Statistics Menu Items Common Items Select this menu When you want to obtain this: item: (Type) Display the calculation type selection screen (Data) Display the Statistics Editor Display the Sum sub-menu of commands for (Sum) calculating sums Display the Var sub-menu of commands for (Var) calculating the mean, standard deviation, etc.
  • Page 48 MinMax Sub-menu ( (STAT) (MinMax)) Select this menu When you want to obtain this: item: (minX) Minimum value (maxX) Maximum value (Q1) First quartile (med) Median (Q3) Third quartile Commands when Linear Regression Calculation (A+BX) Is Selected Sum Sub-menu ( (STAT) (Sum)) Select this menu...
  • Page 49 (σ Population standard deviation of the X-data Sample standard deviation of the X-data Mean of the Y-data (σ Population standard deviation of the Y-data Sample standard deviation of the Y-data Reg Sub-menu ( (STAT) (Reg)) Select this menu When you want to obtain this: item: Regression coefficient constant term A Regression coefficient B...
  • Page 50 Commands when Quadratic Regression Calculation (_+CX ) Is Selected Reg Sub-menu ( (STAT) (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 coefficients (x ˆ...

  • Page 51: Calculating Estimated Values

    (110, 7310), (200, 8800), (290, 9310). Specify Fix 3 (three decimal places) for results. (SETUP) (STAT) (OFF) (SETUP) (Fix) (STAT) (A+BX) 3150 7310 8800 9310 (STAT) (Reg) 0.923 (STAT) (Type) (ln X) 0.998 (STAT) (Reg) (STAT) (Reg) -3857.984 (STAT) (Reg) 2357.532 Results: Linear Regression Correlation Coefficient: 0.923...

  • Page 52: Creating A Numerical Table From Two Functions (Table)

    Creating a Numerical Table from Two Functions (TABLE) TABLE generates a numerical table based on one or two functions. You can use the function f(x) or the two functions f(x) and g(x). See "Configuring the Calculator Setup" for more information. Perform the following steps to generate a numerical table.
  • Page 53 Input the increment step (Default = 1). Note: The Step specifies by how much the Start value should be sequentially incremented as the numerical table is generated. If you Step? specify Start = 1 and Step = 1, X sequentially will be assigned the values 1, 2, 3, 4, and so on to generate the numerical table until the End value is reached.
  • Page 54 Note • You can use the numerical table screen for viewing values only. Table contents cannot be edited. • The numerical table generation operation causes the contents of variable X to be changed. • The maximum number of rows in the generated numerical table depends on the setup menu table setting.

  • Page 55: 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 56 • 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 57: Before Assuming Malfunction Of The Calculator

    Action: • Narrow the table calculation range by changing the Start, End, and Step values, and try again. 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. If one step does not correct the problem, move on to the next step.

  • Page 58: Calculation Priority Sequence

    3. Remove the battery, and then load a new battery with its plus (+) and minus (-) ends facing correctly. 4. Replace the cover. 5. Initialize the calculator: (CLR) (All) (Yes). • Do not skip the above step! Calculation Priority Sequence The priority sequence of input calculations is evaluated in accordance with the rules below.

  • Page 59: Calculation Ranges, Number Of Digits, And Precision

    Multiplication (×), division (÷), remainder calculations (÷R) Addition (+), subtraction (-) Note • When squaring a negative value (such as -2), the value being squared must be enclosed in parentheses ( ). Since x has a higher priority than the negative sign, inputting would result in the squaring of 2 and then appending a negative sign to the result.
  • Page 60 Same as sinx, except when |x| = (2n-1) × Same as sinx, except when |x| = (2n-1) × tanx π/2. Same as sinx, except when |x| = (2n-1) × 100. 0 ≦ |x| ≦ 1 x, cos 0 ≦ |x| ≦ 9.999999999 × 10 0 ≦...
  • Page 61 |x|, |y| ≦ 9.999999999 × 10 ≦ 9.999999999 × 10 Pol(x, y) √x 0 ≦ r ≦ 9.999999999 × 10 Rec(r, θ) θ: Same as sinx ; 0 ≦ b, c a°b’c”: |a|, b, c < 1 × 10 The display seconds value is subject to an error °’...

  • Page 62: Specifications

    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. 1. Press 2. Press • This displays the information below.
  • Page 63 (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 64 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 65 © 2019 CASIO COMPUTER CO., LTD.

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