User manual CASIO FX-83MS

[. . . ] fx-82MS fx-83MS fx-85MS fx-270MS fx-300MS fx-350MS User's Guide E http://world. casio. com/edu/ 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. [. . . ] 200 \ 7 = (Internal rounding) 28. 57100 28. 57100 399. 99400 AQ - 14 = · Press F . . . . . 3(Norm) 1 to clear the Fix specification. · Example 2: 1 Ö 3, displaying result with two significant digits (Sci 2) F. . . . . 2(Sci) 2 1 \ 3 = SCI 3. 3­01 · Press F . . . . . 3(Norm) 1 to clear the Sci specification. E-15 Memory Calculations COMP Use the F key to enter the COMP Mode when you want to perform a calculation using memory. COMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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). · You can recall Answer Memory contents by pressing g. · 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. 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 A j 3 (M+). E-16 · 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 particular variable: 0 A j 1. This operation deletes the data assigned to variable A. · 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 scientific function calculations. COMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] · Nothing appears on the display when you press the 5 key. u To replace the battery 1 Remove the six screws that hold the back cover in place and then remove the back cover. 3 Wipe off the sides of new battery with a dry, soft cloth. Load it into the unit with the positive k side facing up (so you can see it). 4 Replace the back cover and secure it in place with the six screws. [. . . ]