Casio FX991MS Scientific Calculator

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fx-570MS fx-991MS User’s Guide 2 (Additional Functions)

http://world.casio.com/edu_e/

CA 310030-001V08

Important! Please keep your manual and all information handy for future reference.

CASIO ELECTRONICS CO., LTD. Unit 6, 1000 North Circular Road, London NW2 7JD, U.K.

Contents Before getting started... .......................... 3 kModes .................................................................... 3

Mathematical Expression Calculations and Editing Functions ............................ 4 kReplay Copy .......................................................... 4 kCALC Memory ....................................................... 5 kSOLVE Function .................................................... 5

Scientific Function Calculations ............ 6 kInputting Engineering Symbols .............................. 6

Complex Number Calculations .............. 8 kAbsolute Value and Argument Calculation ............. 9 kRectangular Form ↔ Polar Form Display .............. 9 kConjugate of a Complex Number ........................ 10

Base-n Calculations .............................. 10 Statistical Calculations ......................... 12 Normal Distribution .................................................. 12

Differential Calculations ....................... 13 Integration Calculations ....................... 14 Matrix Calculations ............................... 15 kCreating a Matrix ................................................. kEditing the Elements of a Matrix .......................... kMatrix Addition, Subtraction, and Multiplication ... kCalculating the Scalar Product of a Matrix ........... kObtaining the Determinant of a Matrix ................. kTransposing a Matrix ........................................... kInverting a Matrix ................................................. kDetermining the Absolute Value of a Matrix .........

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15 16 16 16 17 17 18 18

Vector Calculations ............................... 18 kCreating a Vector ................................................. kEditing Vector Elements ....................................... kAdding and Subtracting Vectors .......................... kCalculating the Scalar Product of a Vector .......... kCalculating the Inner Product of Two Vectors ...... kCalculating the Outer Product of Two Vectors ..... kDetermining the Absolute Value of a Vector ........

19 19 19 20 20 21 21

Metric Conversions ............................... 22 Scientific Constants .............................. 23 Power Supply ........................................ 25 Specifications ........................................ 27

See the “fx-95MS/fx-100MS/fx-115MS/fx-570MS/fx-991MS User’s Guide” for details about the following items. Removing and Replacing the Calculator’s Cover Safety Precautions Handling Precautions Two-line Display Before getting started... (except for “Modes”) Basic Calculations Memory Calculations Scientific Function Calculations Equation Calculations Statistical Calculations Technical Information

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Before getting started... 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 To perform this type of calculation: Basic arithmetic calculations Complex number calculations Standard deviation Regression calculations Base-n calculations Solution of equations Matrix calculations Vector calculations

Perform this key operation:

To enter this mode:

F1

COMP

F2

CMPLX

FF1 FF2 FF3 FFF1 FFF2 FFF3

SD REG BASE EQN MAT VCT

• Pressing the F key more than three times displays additional setup screens. Setup screens are described where they are actually used to change the calculator setup. • In this manual, the name of the mode you need to enter in order to perform the calculations being described is indicated in the main title of each section.

Example:

Complex Number Calculations

CMPLX

Note! • To return the calculation mode and setup to the initial defaults shown below,