Instruction/ maintenance manual of the product fx-991MS Casio
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fx-570MS fx-991MS CA 310030-001V08 User’s Guide 2 (Additional Functions) http://world.casio.com/edu_e/ E.
CASIO ELECTRONICS CO., LTD . Unit 6, 1000 North Circular Road, London NW2 7JD, U.K. Please keep y our manual and all information handy for future reference .
E-1 Contents Before getting started... .......................... 3 k Modes .................................................................... 3 Mathematical Expression Calculations and Editing Functions ............................ 4 k Replay Copy .
E-2 V ector Calculations ............................... 18 k Creating a V ector ................................................. 19 k Editing V ector Elements ....................................... 19 k Adding and Subtracting V ectors .............
E-3 Befor e getting star ted... k Modes Before starting a calculation, you must first enter the correct mode as indicated in the table below . • The following table shows the modes and required operations for the fx-570MS and fx-991MS. fx-570MS and fx-991MS Modes • Pressing the F key more than three times displays additional setup screens.
E-4 • Mode indicators appear in the upper part of the display , except for the BASE indicators, which appear in the exponent part of the display . • Engineering symbols are automatically turned off while the calculator is the BASE Mode.
E-5 COMP CMPLX about using multi-statements, see “Multi-statements” in the separate “User’s Guide.” • Only the expressions in replay memory starting from the currently displayed expression and continuing to the last expression are copied. Anything before the displayed expression is not copied.
E-6 COMP 1 2 B AC – DC 2 p 2 p u p 1 - p k , R 1 2 T - p h - p k K A I (B?) 14 = (A?) ] (C?) 2 = (D?) 9 l 8 = [ [ (A?) A I •S ince the SOL VE function uses Newton’s Method, cer- tain initial values (assumed values) can make it impos- sible to obtain solutions.
E-7 To input this symbol: Perform this key operation: Unit k (kilo) A k 10 3 M (Mega) A M 10 6 G (Giga) A g 10 9 T (T era) A t 10 12 m (milli) A m 10 –3 µ (micro) A N 10 –6 n (nano) A n 10 –9 p (pico) A p 10 –12 f (femto) A f 10 –15 1 Disp •P ress 1 .
E-8 CMPLX A P 0.9 J 900. 9 ⫼ 1 m Complex Number Calculations Use the F key to enter the CMPLX Mode when you want to perform calculations that include complex numbers. CMPLX ........................................................... F 2 • The current angle unit setting (Deg, Rad, Gra) af fects CMPLX Mode calculations.
E-9 Imaginary axis Real axis k Absolute V alue and Argument Calculation Supposing the imaginary number expressed by the rectangular form z = a + bi is represented as a point in the Gaussian plane, you can determine the absolute value ( r ) and argument ( ) of the complex number .
E-10 B ASE •Y ou select rectangular form ( a + bi ) or polar form ( r ⬔ ) for display of complex number calculation results. F ... 1 (Disp) r 1 ( a + bi ): Rectangular form 2 ( r ⬔ ): Po.
E-11 •Y ou can use the following logical operators between values in Base- n calculations: and (logical product), or (logical sum), xor (exclusive or), xnor (exclusive nor), Not (bitwise complement), and Neg (negation). • The following are the allowable ranges for each of the available number systems.
E-12 1 2 3 4 P ( Q ( R ( → t SD REG SD • Example 4: To c onvert the value 22 10 to its binary , oc- tal, and hexadecimal equivalents. (101 10 2 , 26 8 , 16 16 ) Binary mode: t b 0. b l l l 1 (d) 22 = 10110. b Octal mode: o 26. o Hexadecimal mode: h 16.
E-13 COMP Differ ential Calculations The procedure described below obtains the derivative of a function. Use the F key to enter the COMP Mode when you want to perform a calculation involving differentials. COMP ........................................
E-14 COMP •Y ou can omit input of ∆ x , if you want. The calculator automatically substitutes an appropriate value for ∆ x if you do not input one. •D iscontinuous points and extreme changes in the value of x can cause inaccurate results and errors.
E-15 k Creating a Matrix To create a matrix, press A j 1 (Dim), specify a matrix name (A, B, or C), and then specify the dimensions (number of rows and number of columns) of the matrix. Next, follow the prompts that appear to input values that make up the elements of the matrix.
E-16 k Editing the Elements of a Matrix Press A j 2 (Edit) and then specify the name (A, B, or C) of the matrix you want to edit to display a screen for editing the elements of the matrix. k Matrix Addition, Subtraction, and Multiplication Use the procedures described below to add, subtract, and multiply matrices.
E-17 (M atrix C 2 2) A j 1 (Dim) 3 (C) 2 = 2 = (E lement input) 2 = D 1 = D 5 = 3 = t (3 MatC) 3 - A j 3 (Mat) 3 (C) = k Obtaining the Determinant of a Matrix Y ou can use the procedure below to determine the determinant of a square matrix.
E-18 VCT 0.4 1 0.8 1.5 0.5 1.5 0.8 0 0.6 [ ] ( ) k Inverting a Matrix Y ou can use the procedure below to invert a square matrix. • Example: To invert Matrix C = (M atrix C 3 3) A j 1 (Dim) 3 (C.
E-19 Use the F key to enter the VCT Mode when you want to perform vector calculations. VCT ..................................................... F F F 3 Note that you must create one or more vector before you can perform vector calculations. •Y ou can have up to three vectors, named A, B, and C, in memory at one time.
E-20 • Example: To add V ector A = (1 – 2 3) to V ector B = (4 5 –6 ). (Result: (5 3 –3) ) ( 3-dimensional V ector A) A z 1 (Dim) 1 (A) 3 = (E lement input) 1 = D 2 = 3 = t ( 3-dimensional V e.
E-21 k Calculating the Outer Product of T wo V ectors Use the procedure described below to obtain the outer product for two vectors. • Example: To c a lculate the outer product of V ector A and Ve c.
E-22 COMP (Ans (AbsVctA AbsVctB)) R A A A z 3 (Vct) 1 (A) - A A A z 3 (Vct) 2 (B) T = (cos –1 Ans) (Result: 108.4349488 ° ) A V g = (VctA VctB) A z 3 (Vct) 1 (A) - A z 3 (Vct) 2 (B) = (AbsVctAns) A A A z 3 (Vct) 4 (Ans) = (VctAns Ans) (Result: (– 0.
E-23 COMP u Conversion Pair T able Based on NIST Special Publication 81 1 (1995). Scientific Constants Use the F key to enter the COMP Mode when you want to perform calculations using scientific constants. COMP ........................................
E-24 •S imply input the number that corresponds to the scientific constant you want to look up and it appears instantly on the display . • See the Scientific Constant T able for a complete list of available constants. • Example: To determine how much total energy a person weighing 65kg has (E = mc 2 = 5.
E-25 To select this constant: Input this scientific constant number: molar volume of ideal gas (Vm) 26 molar gas constant (R) 27 speed of light in vacuum (C 0 )2 8 first radiation constant (C 1 )2 9 s.
E-26 u T o replace the battery 1 Remove the five screws that hold the back cover in place and then remove the back cover . 2 Remove the old battery . 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).
E-27 5 Replace the battery cover and secure it in place with the screw . 6 Press 5 to turn power on. Auto Power Off Calculator power automatically turns of f if you do not perform any operation for about six minutes. When this happens, press 5 to turn power back on.
SA0403-F Printed in China CASIO COMPUTER CO. , L TD . 6-2, Hon-machi 1-chome Shibuya-ku, Tokyo 151-8543, Japan.
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If you already are a holder of Casio fx-991MS, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Casio fx-991MS.
However, one of the most important roles played by the user manual is to help in solving problems with Casio fx-991MS. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Casio fx-991MS along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
