User manual CASIO FX-115MS

[. . . ] fx-95MS fx-100MS fx-115MS (fx-912MS) fx-570MS fx-991MS User's Guide kfx-912MS owners Please be sure to read the important notice of this manual. E http://world. casio. com/edu_e/ CASIO ELECTRONICS CO. , LTD. Unit 6, 1000 North Circular Road, London NW2 7JD, U. K. Removing and Replacing the Calculator's Cover · Before starting . . . . . 1 Holding the cover as shown in the illustration, slide the unit out of the cover. · After you are finished . . . . . 2 Holding the cover as shown in the illustration, slide the unit out of the cover. · Always slide the keyboard end of the unit into the cover first. [. . . ] 1(Fix) 3 15 400. 00000 (Internal calculation continues using 12 digits. ) 200 \ 7 = 28. 57100 400. 00000 - 14 = The following performs the same calculation using the specified number of decimal places. 200 \ 7 = (Internal rounding) 28. 57100 28. 57100 399. 99400 AQ - 14 = · Press F . . . . . · Example 2: 1 Ö 3, displaying result with two significant digits (Sci 2) F. . . . . 3(Norm) 1 to clear the Sci specification. Memory Calculations COMP Use the F key to enter the COMP Mode when you want to perform a calculation using memory. F 1 k Answer Memory · Whenever you press = after inputting values or an expression, the calculated result automatically updates Answer Memory contents by storing the result. · In addition to =, Answer Memory contents are also updated with result whenever you press A v, |, A {, or A j followed by a letter (A through F, or M, X, or Y). · Answer Memory can store up to 12 digits for the mantissa and two digits for the exponent. · Answer Memory contents are not updated if the operation performed by any of the above key operations results in an error. k Consecutive Calculations · You can use the calculation result that is currently on the display (and also stored in Answer Memory) as the first value of your next calculation. Note that pressing an operator key while a result is displayed causes the displayed value to change to Ans, indicating it is the value that is currently stored in Answer Memory. · The result of a calculation can also be used with a subsequent Type A function (x2, x3, x­1, x!, DRG'), +, ­, ^(xy), x , , Ö, nPr and nCr. k Independent Memory · Values can be input directly into memory, added to memory, or subtracted from memory. · Example: 23 53 ) 45 9 6 2 32 47 90 ­11 23 + 9 A j 3 (M+) 53 , 6 | 45 - 2 A { (Total) 0 3 (M+) 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 a 17 particular variable: 0 A j 1. · Perform the following key operation when you want to clear the values assigned to all of the variables. A B 1(Mcl) = · Example: 193. 2 Ö 23 193. 2 Ö 28 8. 4 6. 9 193. 2 A j 1 \ 23 = p 1 \ 28 = Scientific Function Calculations COMP Use the F key to enter the COMP Mode when you want to perform basic arithmetic calculations. F 1 · Certain types of calculations may take a long time to complete. · Wait for the result to appear on the display before starting the next calculation. · = 3. 14159265359 k Trigonometric/Inverse Trigonometric Functions · To change the default angle unit (degrees, radians, grads), press the F key a number of times until you reach the angle unit setup screen shown below. Deg Rad G r a 1 2 3 · Press the number key (1, 2, or 3) that corresponds to the angle unit you want to use. (90° = 2 radians = 100 grads) 18 · Example 1: sin 63 °52o41 0. 897859012 q . . . . . 1(Deg) S 63 I 52 I 41 I = · Example 2: cos ( rad) 3 0. 5 q . . . . . 2(Rad) WRAx\3T= 0. 25 (rad) · Example 3 : cos 1 2 2 ( (rad)) 4 q . . . . . 2 (Rad) AVRL2\2T=g\Ax= · Example 4: tan 1 0. 741 36. 53844577 ° q . . . . . 1(Deg) A g 0. 741 = k Hyperbolic/Inverse Hyperbolic Functions · Example 1: sinh 3. 6 · Example 2: sinh 1 18. 28545536 4. 094622224 M S 3. 6 = M A j 30 = 30 k Common and Natural Logarithms/ Antilogarithms · Example 1: log 1. 23 0. 089905111 R 1. 23 = T 90 = TpP= A U 10 = A Q 1. 5 = 2W4= · Example 2: In 90 (= loge 90) = 4. 49980967 ln e · Example 3: e10 · Example 4: 10 · Example 5: 24 1. 5 1 22026. 46579 31. 6227766 16 19 k Square Roots, Cube Roots, Roots, Squares, Cubes, Reciprocals, Factorials, Random Numbers, , and Permutation/Combination · Example 1: 3 2 3 3 5 5. 287196909 ­1. 290024053 L2+L3-L5= · Example 2: 5 27 1 A D 5 + A D R D 27 T = · Example 3: 7 123 ( = 123 7 ) 1. 988647795 7 A H 123 = 123 + 30 K = 12 N * = · Example 4: 123 · Example 5: 123 302 1023 1728 * A N in the case of fx-570MS/fx-991MS. 1 · Example 6: 12 1 1 3 4 R3a, 4aTa= · Example 7: 8! 40320 8Af= · Example 8: To generate a random number between 0. 000 and 0. 999 AM= · Example 9: 3 0. 66400 3Ax= (The above value is a sample only. [. . . ] 6 Type B functions: With these functions, the function key is pressed and then the value is entered. 3 , , log, In, ex, 10x, sin, cos, tan, sin 1, cos 1, tan 1, sinh, cosh, tanh, sinh 1, cosh 1, tanh 1, ( ) d*, h*, b*, o*, Neg*, Not*, Det**, Trn**, arg*, Abs*, Conjg* 7 Abbreviated multiplication format in front of Type B functions: 2 3, Alog2, etc. 8 Permutation and combination: nPr, nCr * 9 Dot (·)** 0 , Ö !, @ and* # xnor*, xor*, or* 34 * fx-100MS/fx-115MS/fx-570MS/fx-991MS only. · Operations of the same precedence are performed from right to left. [. . . ]