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E
fx-300ES PLUS
User’s Guide
CASIO Worldwide Education Website
http://edu.casio.com
CASIO EDUCATIONAL FORUM
http://edu.casio.com/forum/
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Contents Important Information ..............................................................2 Sample Operations ...................................................................2 Initializing the Calculator .........................................................2 Safety Precautions ...................................................................2 Handling Precautions ...............................................................2 Removing the Hard Case ..................................
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Important Information • 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. • The contents of this manual are subject to change without notice. • 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 com
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• Never try to take the calculator apart. • Use a soft, dry cloth to clean the exterior of the calculator. • Whenever discarding the calculator or batteries, be sure to do so in accordance with the laws and regulations in your particular area. * Company and product names used in this manual may be registered trademarks or trademarks of their respective owners. Removing the Hard Case Before using the calculator, slide its hard case downwards to remove it, and then affix
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Reading the Display The display of the calculator shows expressions you input, calculation results, and various indicators. Input expression Indicators Math Math Calculation result • If a ' indicator appears on the right side of the calculation result, it means the displayed calculation result continues to the right. Use e and d to scroll the calculation result display. • If a g indicator appears on the right side of the input expression, it means the displayed cal
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Using Menus Some of the calculator’s operations are performed using menus. Pressing N or w, 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. • The $ indicator in the upper right corner of a menu means there is another menu below the current one. The ` indicator means another me
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6Fix 7Sci 8Norm Specifies the number of digits for display of a calculation result. 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. Example: b 100 ÷ 7 = 14.286 (Fix 3) 14.29 (Fix 2) Sci: The value you specify (from 1 to 10) controls the number of significant digits for displayed calculation res
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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. 4 × sin30 × (30 + 10 × 3) = 120 Math 4 * s 30 )*( 30 + 10 * 3 )= 1 * 2 3 * * 1 * Input of the closing parenthesis is required for sin, sinh, and other functions that include parentheses. 2 *
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Negative sign (–) Note: When squaring a negative value (such as –2), the value being squared must be enclosed in parentheses ( (- 2 )w 2 =). Since x has a higher priority than the negative sign, 5th inputting - 2 w= would result in the squaring of 2 and then appending a negative sign to the result. Always keep the priority sequence in mind, and enclose negative values in parentheses when required. 6th STAT Mode estimated values ( m, n, m1 , m2 ) 7th Multiplication w
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Math ! As shown above, the value or expression to the right of the cursor after 1Y(INS) are pressed becomes the argument of the function that is specified next. The range encompassed as the argument is everything up to the first open parenthesis to the right, if there is one, or everything up to the first function to the right (sin(30), log2(4), etc.) This capability can be used with the following functions: ', &, 1 6( "), 1l( $), 1i( %), !, 6, 1!( #), D. O
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Math 3 To input 1.428571428571... (1.428571) B Math 1 .a!( k ) Math 428571 To calculate 1.021 + 2.312 B Math 1 .a!( k ) 021e+ 2 .a!( k ) 312= Math Calculation result displayed as recurring decimal value: f 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. • Recurr
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Math Return to initial display format (fraction): f 1 1 ÷ 7 = = 0.142857 = 0.1428571429 (Norm 1) B 7 Math 1 / 7 != Math Display as fraction: f Math Display as recurring decimal: f Math Return to initial display format (Norm 1): f 1 = 0.142857 = 0.1428571429 (Norm 1) b 7 1 ' 7 = Display as recurring decimal: f Decimal value according to Norm 1 setting: f Return to initial display format (fraction): f 1 1 ÷ 7 = 0.1428571429 (Norm 1) = 0.142857 = b 7 1 / 7 = D
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Display as recurring decimal: f Return to initial display format (Norm 1): f Conditions for Displaying a Calculation Result as a Recurring Decimal If a calculation result satisfies the following conditions, pressing f will display it as a recurring decimal value. • The total number of digits used in the mixed fraction (including integer, numerator, denominator, and separator symbol) must be no more than 10. • The data size of value to be displayed as the recurring decimal must be no larg
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Toggling Calculation Results While Natural Display is selected, each press of f will toggle the currently displayed calculation result between its fraction form and decimal form, its ' form and decimal form, or its π form and decimal form. 1 π ÷ 6 = = 0.5235987756 B π 6 1 15( π ) / 6 = 0.5235987756 π f 6 (' + 2) × ' = = 5.913591358 B 2 3 ' ' 6 + 2 3 (! 2 e+ 2 )*! 3 = ' ' ' 5.913591358 6 + 2 3 f While Linear Display is selected, each pre
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1 1 1 B 4 - 1'( () 3 e 1 c 2 = = 4 − 3 2 2 2 b 4 - 3 ' 1 ' 2 = 1 {2 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. • Fractions in calculation results are displayed after being reduced to their lowest terms. T o switch a calculation result between improper fraction and mixed fraction form: Perform the following key operation: 1f( )
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3 + 3 : 3 × 3 3 + 3 SW(:) 3 * 3 = 6 = 9 Using Engineering Notation A simple key operation transforms a displayed value to engineering notation. Transform the value 1234 to engineering notation, shifting the decimal point to the right. 1234 = 1234 3 W 1.234×10 0 W 1234×10 Transform the value 123 to engineering notation, shifting the decimal point to the left. 123 = 123 3 1W( ← ) 0.123×10 6 1W(
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results in Ans memory. PreAns memory can be used only in the COMP Mode. PreAns memory contents are cleared whenever the calculator enters another mode from the COMP Mode. To divide the result of 3 × 4 by 30 b 3 * 4 = (Continuing) / 30 = 123 + 456 = 579 B 123 + 456 = Math 789 – 579 = 210 (Continuing) 789 -G= For Tk+2 = Tk+1 + Tk (Fibonacci sequence), determine the sequence from T1 to T5. Note however, that T1
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To multiply the contents of variable A by 10 (Continuing) Sy(A) * 10 = 80 To recall the contents of variable A (Continuing) ty(A) 8 To clear the contents of variable A 0 1t(STO) y(A) 0 Independent Memory (M) You can add calculation results to or subtract results from independent memory. The “M” appears on the display when there is any value other than zero stored in independent memory. To clear the contents of M
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Note: • You will not be able to execute prime factorization while a decimal value, fraction, or negative value calculation result is displayed. Trying to do so will cause a math error (Math ERROR). • You will not be able to execute prime factorization while the result of a calculation that uses Pol, Rec, ÷R is displayed. Remainder Calculations You can use the ÷R function in order to obtain the quotient and remainder in a division calculation. To calculate the quotient and
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−1 −1 −1 sin, cos, tan, sin , cos , tan : Trigonometric functions. Specify the angle unit before performing calculations. See 1. −1 −1 −1 sinh, cosh, tanh, sinh , cosh , tanh : Hyperbolic functions. Input a function from the menu that appears when you press w. The angle unit setting does not affect calculations. See . 2 r g r °, , : These functions specify the angle unit. ° specifies degrees, radians, g and grads. Input a function from the menu th
