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Casio fx55Plus - page 1
fx- 5 5 P L U S User’ s Guid e CASI O Wor l d w id e Ed u c a t i on We b s it e ht t p : / / e d u.c a s i o.c o m CASIO ED U CA TIO N AL FO RU M ht t p : / / e d u.c a s i o.c o m / f o r u m / E ...
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Casio fx55Plus - page 2
Contents Important Information ..............................................................2 Sample Operations ...................................................................2 Initializing the Calculator .........................................................2 Safety Precautions .............................................................. ...
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Casio fx55Plus - page 3
E-2 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, c ...
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Casio fx55Plus - page 4
E-3 Do not subject the calculator to excessive impact, pressure, or bending. 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 ...
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Casio fx55Plus - page 5
E-4 Reading the Display The display of the calculator shows expressions you input, calculation results, and various indicators. Input expression Calculation result Math Indicators If a g indicator appears on the right side of the input expression, it means the displayed calculation continues to the right. Use e and d to scroll the input expression ...
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Casio fx55Plus - page 6
E-5 3 Fix 4 Norm 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: L 100 ÷ 7 = 14.286 (Fix 3) 14.29 (Fix 2) Norm: Selecting o ...
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Casio fx55Plus - page 7
E-6 4 × (30 + 10 × 3) = 240 4 *( 30 + 10 * 3 )= * 1 * 2 * 1 A multiplication symbol ( × ) can be omitted when it occurs immediately before an opening parenthesis, immediately before Rnd or RanInt# function that includes parentheses, immediately before the Ran# (random number) function, or immediately before independent memory (M) or π . * 2 The ...
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Casio fx55Plus - page 8
E-7 Inputting a Calculation Formula Your calculator lets you input calculator formulas using the same format as they appear in your textbook (natural format). Fractions and special functions ( x 2 , x ^ , ) , x −1 , 10 ^ ) are also displayed in a natural format. 63 L ! 63 = K ! 63 = Important: • Certain types of expressions can cause the height ...
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Casio fx55Plus - page 9
E-8 Correcting and Clearing an Expression To delete a single character or function: Move the cursor so it is directly to the right of the character or function you want to delete, and then press Y . To insert a character or function into a calculation: Use d and e to move the cursor to the location where you want to insert the character or function ...
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Casio fx55Plus - page 10
E-9 Percent Calculations Inputting a value and pressing & causes the input value to become a percent. 150 × 20% = 30 150 * 20 &= 30 Calculate what percentage of 880 is 660. (75%) 660 / 880 &= 75 Increase 2500 by 15%. (2875) 2500 + 2500 * 15 &= 2875 Discount 3500 by 25%. (2625) 3500 - 3500 * 25 &= 2625 Percent Conversion Calcula ...
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Casio fx55Plus - page 11
E-10 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. 2°20´30˝ + 39´30˝ = 3°00´00˝ 2 $ 20 $ 30 $ + 0 $ 39 $ 30 $ = 3°0´0˝ Convert 2°15´18˝ to its decimal equivalent. 2 $ 15 $ 18 $ = 2°15´18˝ (Converts sexagesi ...
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Casio fx55Plus - page 12
E-11 123 + 456 = 579 123 + 456 = 789 – 579 = 210 (Continuing) 789 - G = 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 0 S 0 To assign the result of 2 + 8 to M ...
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Casio fx55Plus - page 13
E-12 Cases when Remainder Division becomes Non-remainder Division If either of the following conditions exists when you perform a remainder division operation, the calculation will be treated as normal (non-remainder) division. When either the dividend or the divisor is a very large value Example: 20000000000 u 17 = → Calculated as: 20000000000 ? ...
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Casio fx55Plus - page 14
E-13 Examples To calculate 8 × 2 π to three decimal places (Fix 3) s 3 (Fix) 3 L 8 * 2 p = 50.265 K 8 * 2 p = 16 π π M 50.265 To calculate 10 5 × 0.12 A 5 e * 0.12 = 12000 1.2 × 10 3 = 1200 1.2 * 10 6 3 = 1200 3 2+2 = 81 3 6 2 + 2 = 81 5 2 = 25 5 x = 25 4 −1 = 0.25 L 4 E = 0.25 K 4 E ! = 0.25 To calculate ' 2 × 3 (= 3 ' 2 = 4.242 ...
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Casio fx55Plus - page 15
E-14 l = F=5, 5 6 l = 5 6 When further simplification is not possible, “Simplified” appears momentarily on the display and then the calculation result is displayed. When a divisor of 3 is specified: 18 21 = 6 7 18 ' 21 = l 3 = F=3, 6 7 or 18 ' 21 e l 3 = F=3, 6 7 Calculation Ranges, Number of Digits, and Precision The calculation rang ...
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Casio fx55Plus - page 16
E-15 RanInt#( a , b ) a b ; | a | , | b | 1 × 10 10 ; b – a 1 × 10 10 Simp n 1 n 9999 ( n is an integer) Precision is basically the same as that described under “Calculation Range and Precision”, above. x y type function requires consecutive internal calculation, which can cause accumulation of errors that occur with eac ...
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Casio fx55Plus - page 17
E-16 Error Messages Math ERROR Cause: • The intermediate or final result of the calculation you are performing exceeds the allowable calculation range. • 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). ...
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Casio fx55Plus - page 18
E-17 Replacing the Battery A low battery is indicated by a dim display, even if contrast is adjusted, or by failure of figures to appear on the display immediately after you turn on the calculator. If this happens, replace the battery with a new one. Important: Removing the battery will cause all of the calculator’s memory contents to be deleted. ...
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Casio fx55Plus - page 19
E-18 Ans Memory: Stores the result of the last calculation performed. Use this memory to carry the result of one calculation on to the next. Independent Memory: Use this memory to totalize the results of multiple calculations. How can I return the calculator to its initial default settings? Perform the following operation: r 1 (Setup) = (Yes) Is th ...
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Casio fx55Plus - page 20
CASIO COMPUTER CO., L TD. 6-2, Hon-machi 1-chome Shibuya-ku, T okyo 151-8543, Japan SA1112-A © 2012 CASIO COMPUTER CO., L TD. ...
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