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E
fx-500ES
User's Guide
http://world.casio.com/edu/
RCA502127-001V01
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CASIO Europe GmbH Bornbarch 10, 22848 Norderstedt, Germany
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About this Manual • The MATH mark indicates an example that uses Math format, while the LINE mark indicates Linear format. For details about input/output formats, see “Specifying the Input/Output Format”. •Keycap markings indicate what a key inputs or what function it performs. Example: 1, 2, +, -, !, A, etc. •Pressing the 1 or S key followed by a second key performs the alternate function of the second key. The alternate function is indicated by the text printed above the key. Alternate fun
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• The cursor key is marked with four arrows, indicating direction, as shown in the illustration nearby. In this User’s Guide, cursor REPLAY key operation is indicated as f, c, d, and e. • The displays and illustrations (such as key markings) shown in this User’s Guide and the separate Appendix 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.,
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Safety Precautions Be sure to read the following safety precautions before using this calculator. Keep this manual handy for later reference. Caution This symbol is used to indicate information that can result in personal injury or material damage if ignored. Battery •After removing the battery from the calculator, put it in a safe place where it will not get into the hands of small children and accidentally swallowed. •Keep batteries out of the reach of small children. If accidentally swallowed
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Handling Precautions •Be sure to press the O key before using the calculator for the first time. •Even if the calculator is operating normally, replace the battery at least once every two years. A dead battery can leak, causing damage to and malfunction of the calculator. Never leave a dead battery in the calculator. • The battery that comes with this unit discharges slightly during shipment and storage. Because of this, it may require replacement sooner than the normal expected battery life. •L
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Before Using the Calculator k Removing the Hard Case 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 below. k Turning Power On and Off •Press O to turn on the calculator. •Press 1A(OFF) to turn off the calculator. k Adjusting Display Contrast 1N(SETUP)c6(]CONT') This displays the contrast adjustment screen. Use d and e to adjust display contrast. After the setting is the way you want,
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k About the Display Your calculator has a 31-dot × 96-dot LCD screen. Example: Input expression Calculation result { k Display Indicators Sample Display: STAT This Means this: indicator: The keypad has been shifted by pressing the 1 S 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 S key. The alpha input mode will be exited A and this indicator will disappear when you press a key. M There is a value stored
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Important! •For a very complex calculation or some other 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. Calculation Modes and Calculator Setup k Calculation Modes When you want to perform this type of Select this operation: mode: General calculations COMP Statistical and regression calculations STAT Equation solution EQN Generation of a number table based on an TABLE expressio
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Specifying the Input/Output Format For this input/output format: Perform this key operation: Math 1N1(MthIO) Linear 1N2(LineIO) •Math format causes fractions, irrational numbers, and other expressions to be displayed as they are written on paper. •Linear format causes fractions and other expressions to be displayed in a single line. Math Math Format Linear Format Specifying the Default Angle Unit To specify this as the default Perform this key operation: angle unit: Degrees 1N3(Deg) Radians 1N4(
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•Norm: Selecting one of the two available settings (Norm1, Norm2) determines the range in which results will be displayed in non- exponential format. Outside the specified range, results are displayed using exponential format. –2 10 Norm1: 10 > x, x > 10 –9 10 Norm2: 10 > x, x > 10 –3 Example: 1 ÷ 200 = 5 × 10 (Norm1) 0.005 (Norm2) Specifying the Fraction Display Format To specify this fraction Perform this key operation: display format: Mixed 1Nc1(ab/c) Improper 1Nc2(d/c) Specifying the
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k Initializing the Calculation Mode and Other Settings Performing the following procedure initializes the calculation mode and other setup settings as shown below. 19(CLR)1(Setup)=(Yes) This setting: Is initialized to this: Calculation Mode COMP Input/Output Format MthIO Angle Unit Deg Display Digits Norm1 Fraction Display Format d/c Complex Number Format a+bi Statistical Display OFF Decimal Point Dot •To cancel initialization without doing anything, press A(Cancel) instead of =. Inputting Expre
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Example: sin 30 = LINE s30)= Pressing s inputs “sin(”. •Note that the input procedure is different if you want to use Math format. For more information, see “Inputting with Math Format”. Omitting the Multiplication Sign You can omit the multiplication sign (×) in any of the following cases. •Before an open parentheses ( ( ): 2 × (5 + 4), etc. •Before a function with parenthesis: 2 × sin(30), 2 × '(3), etc. •Before a variable name, constant, or random number: 20 × A, 2 × π, etc. Final Closed Par
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•Normally the input cursor appears as a straight vertical ( ) or I horizontal ( ) flashing line on the display screen. When there are 10 or fewer bytes of input remaining in the current expression, the cursor changes shape to to let you know. If the cursor I I appears, terminate the expression at a convenient point and calculate the result. k Correcting an Expression This section explains how to correct an expression as you are inputting it. The procedure you should use depends on whether you
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Deleting a Character or Function Example: To correct the expression 369 × × 12 so it becomes 369 × 12 LINE Insert Mode:369**12 dd Y Overwrite Mode: 369**12 ddd Y Correcting a Calculation Example: To correct cos(60) so it becomes sin(60) LINE Insert Mode: c60) dddY s Overwrite Mode: c60) dddd s Inserting Input into a Calculation Always use the insert mode for this operation. Use d or e to move the cursor to the location where you want to insert new input, and then input what you want. E-13
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k Displaying the Location of an Error If an error message (like “Math ERROR” or “Syntax ERROR”) appears when you press =, press d or e. This will display the part of the calculation where the error occurred, with the cursor positioned at the error location. You can then make necessary corrections. Example: When you input 14 ÷ 0 × 2 = by mistake instead of 14 ÷ 10 × 2 = Use the insert mode for the following operation. LINE 14/0*2= Press e or d. This is causing the error. d1 = You c
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Functions and Symbols Supported for Math Format Input • The “Bytes” column shows the number of bytes of memory that are used up by input. Function/Symbol Key Operation Bytes Improper Fraction ' 9 Mixed Fraction 1'(()13 log(a,b) (Logarithm) & 6 10^x (Power of 10) 1l($)4 e^x (Power of e) 1i(%)4 Square Root ! 4 Cube Root 1!(#)9 Square, Cube w, W 4 Reciprocal E 5 Power 6 4 Power Root 16(")9 Absolute Value D 4 Parentheses ( or ) 1 Math Format Input Examples • The following operations are all performe
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2 2 Example 3: To input (1 + ) × 2 = 5 MATH Math (1+'2c5e) w*2= •When you press = and obtain a calculation result using Math format, part of the expression you input can be cut off as shown in the Example 3 screen shot. If you need to view the entire input expression again, press A and then press e. Incorporating a Value into a Function When using Math format, you can incorporate part of an input expression (a value, an expression within parentheses, etc.) into a function. Example: To inco
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Function Key Operation Resulting Expression Power Root 16(") You can also incorporate values into the following functions. 1l($), 1i(%), !, 6, 1!(#), D Displaying Calculation Results in a Form that Includes ''''' 2, π, etc. (Irrational Number Form) When “MthIO” is selected for the input/output format, you can specify whether calculation results should be displayed in a form that includes expressions like ' 2 and π (irrational number form). •Pressing = after inputting a calculation displays the r
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1 –1 Example 3: sin (0.5) = π (Angle Unit: Rad) 6 Math MATH –1 1s(sin )0.5= • The following are the calculations for which ' form (form that includes ' within irrational number display) results can be displayed. a. Arithmetic calculations of values with square root symbol ('), 2 3 –1 x , x , x b. Trigonometric function calculations The following are the input value ranges for which ' form is always used for display of trigonometric calculation results. Input Value Range Angle Unit Angle Val
