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Hersteller: Casio Dateigröße: 303.49 kb Dateiname: Unterrichtssprache:

Independent memory is convenient for calculating cumulative totals. •Independent memory uses the same memory area as variable M. •To clear independent memory (M), input 0 j 3. • Example: 23 9 32 23 + 9 j 3 32.00 ) 53 6 47 45 2 90 53 , 6 | 47.00 (Total) –11 45 2 A { 90.00 0 3 –11.00 k Variables • There are nine variables (A through F, M, X and Y), which can be used to store data, constants, results, and other values. •Use the following operation to delete data assigned to all nine variables: A C =. •Use the following operation to delete data assigned to a particular variable: 0 j 1. This operation deletes the data assigned to variable A. E-11 • Example: 193.2 23 8.4 193.2 28 6.9 193.2 j 1 \ 23 = p 1 \ 28 = 8.400 6.900 Fraction Calculations k Fraction Calculations •Use the COMP mode for fraction calculations. •Values are automatically displayed in decimal format whenever the total number of digits of a fractional value (integer numerator denominator separator marks) exceeds 10. 2 4 • Example 1 : 1 3 5 2 C 3 + 1 C 4 C 5 = 2 7 15.00 • Example 2 : 1 2 1.6 1 C 2 + 1.6 = 2.100 •Fraction/decimal calculation results are always decimal. k Decimal-to-Fraction Conversion • Example: 2.75 > 2 3 4 2.75 = C A B 2.75 2 3 4.00 11 4.00 k Fraction-to-Decimal Conversion 1 • Example: - 0.5 (Fraction -Decimal) 2 1 C 2 = 1 2.00 E-12 C 0.500 C1 2.00 Percentage Calculations •Use the COMP mode for percentage calculations. • Example 1 : To calculate 12% of 1500 1500 -12 A v • Example 2 : To calculate what percentage of 880 is 660 660 \ 880 A v • Example 3 : To add 15% onto 2500 2500 -15 A v + • Example 4 : To discount 3500 by 25% 3500 -25 A v , • Example 5: If 300 grams are added to a test sample originally weighing 500 grams, what is the percentage increase in weight? 300 500 100 160 (%) 500 300 + 500 A v • Example 6: If temperature changes from 40 °C to 46°C, what percentage did it rise? 46 40 100 15 (%) 40 46 , 40 A v 180.00 75.00 2875.00 2625.00 160.00 15.00 E-13 Scientific Function Calculations •Use the COMP mode for scientific function calculations. • = 3.14159265359 k Trigonometric/Inverse Trigonometric Functions • Example 1 : sin63°5241 fx-85W: q q q 1 >“ R ” Other models: q q 1 S 63 I 52 I 41 I = . • Example 2 : cos ( rad) 3 fx-85W: q q q 2 >“ T ” Other models: q q 2 W R A x \ 3 T = 2 . • Example 3 : cos1 rad 2 4 fx-85W: q q q 2 >“ T ” Other models: q q 2 A V R L 2 \ 2 T = g \ A x = • Example 4 : tan10.741 fx-85W: q q q 1 >“ R ” Other models: q q 1 A g 0.741 = 0.89785901200 R 0.500 T 0.78539816300 T 0.2500 36.5384457700 R E-14 k Hyperbolic/Inverse Hyperbolic Functions • Example 1 : sinh 3.6 M S 3.6 = 18.2854553600 • Example 2 : sinh1 30 M A j 30 = 4.09462222400 k Angle Unit Conversion •Press A v to display the following menu. D R G 1 2 3 •Pressing 1, 2, or 3 converts the displayed value to the corresponding angle unit. • Example : To convert 4.25 radians to degrees fx-85W: q q q 1 >“ R ” Other models: q q 1 4.25 A v 2 (R) = k Common and Natural Logarithms/ Antilogarithms • Example 1 : log 1.23 R 1.23 = • Example 2 : In 90 (log 90) e T 90 = • Example 3 : e10 A U 10 = • Example 4 : 101.5 A Q 1.5 = • Example 5 : 24 2 w 4 = 4 . 25 r 243.5070629 0.08990511100 4.4998096700 22026.4657900 31.622776600 16.00 E-15 k Square Roots, Cube Roots, Roots, Squares, Cubes, Reciprocals, Factorials, Random Numbers and . • Example 1: 2 3 5 L 2 + L 3 -L 5 = 5.28719690900 • Example 2: 3 5 3 27 D 5 + D D 27 = –1.29002405300 1 • Example 3: 7 123 ( = 123 7 ) 7 A H 123 = 1.98864779500 • Example 4: 123302 123 + 30 K = 1023.00 • Example 5: 123 12 N = 1728.00 1 • Example 6: 1 1 3 4 R 3 a , 4 a T a = 12.00 • Example 7: 8! 8 A f = 40320.00 • Example 8: To generate a random number between 0.000 and 0.999 A M = 0.66400 Example (results differ each time) • Example 9: 3. 3 A x = 9.42477796100 k FIX, SCI, RND • Example 1: 200714400 200 \ 7 -14 = 400.00 E-16 (Specifies three decimal places.) fx-85W: F F F F 1 3 400.00000 Other models: q q q 1 3 Fix (Calculation continues using 10 200 \ 7 = 28.57100 display digits) -14 = 400.00000 Perfor ming the same calculation using the specified number of decimal places 200 \ 7 = 28.57100 (Inter nal rounding) A Q 28.57100 -14 = 399.99400 •Press F F F F 3 1 (fx-85W) to clear FIX specification. For other models, press F F F 3 1. • Example 2: 1 3, displaying result with two significant digits (SCI 2) fx-85W: q q q q 2 2 Other models: q q q 2 23.3–01 1 \ 3 = Sci •Press F F F F 3 1 (fx-85W) to clear SCI specification. For other models, press F F F 3 1. k ENG Calculations • Example 1: To convert 56,088 meters to kilometers 56088 = J 56.088003 • Example 2: To convert 0.08125 grams to milligrams 0.08125 = J 81.25–03 E-17 k Coordinate Conversion (Pol(x, y), Rec (r, .)) •Calculation results are automatically assigned to variables E and F. • Example 1: To convert polar coordinates (r2, 60°) to rectangular coordinates (x, y) (DEG mode) 1.00 x A F 2 P 60 T = R y 0 o 1.73205080800 • 0 n, 0 o swaps displayed value with v...

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