Casio FX-991EX Bedienungsanleitung

Casio Taschenrechner FX-991EX

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fx-991EX

fx-570EX

http://edu.casio.com

User’s Guide

RJA532432-001V01

CASIO Worldwide Education Website

Be sure to keep all user documentation handy for future

reference.

CONTENTS

About this Manual......................................................................................2

Initializing the Calculator........................................................................... 2

Precautions................................................................................................2

Getting Started.......................................................................................... 3

Calculation Mode.......................................................................................4

Input and Output Formats......................................................................... 5

Conﬁguring the Calculator Setup.............................................................. 6

Inputting Expressions and Values............................................................. 8

Toggling Calculation Results................................................................... 10

Basic Calculations................................................................................... 10

Calculation History and Replay............................................................... 12

Using Memory Functions.........................................................................13

Function Calculations.............................................................................. 14

QR Code Function................................................................................... 17

Complex Number Calculations................................................................18

Using CALC.............................................................................................18

Using SOLVE........................................................................................... 19

Statistical Calculations.............................................................................20

Base- Calculations.................................................................................23n

Equation Calculations..............................................................................24

Matrix Calculations.................................................................................. 25

Creating a Number Table........................................................................ 27

Vector Calculations..................................................................................28

Inequality Calculations............................................................................ 29

Ratio Calculations....................................................................................30

Distribution Calculations..........................................................................31

Using Spreadsheet..................................................................................33

Scientiﬁc Constants................................................................................. 37

Metric Conversion....................................................................................37

Errors....................................................................................................... 37

Before Assuming Malfunction of the Calculator.......................................39

Replacing the Battery.............................................................................. 39

Technical Information...............................................................................40

■■ ■■ Frequently Asked Questions .........................................................42

Reference Sheet...................................................................................... 44

• In no event shall CASIO Computer Co., Ltd. be liable to anyone for

special, collateral, incidental, or consequential damages in connection

with or arising out of the purchase or use of this product and items that

come with it.

• Moreover, CASIO Computer Co., Ltd. shall not be liable for any claim of

any kind whatsoever by any other party arising out of the use of this

product and the items that come with it.

About this Manual

• Unless speciﬁcally stated, all sample operations in this manual assume

that the calculator is in its initial default setup. Use the procedure under

“Initializing the Calculator” to return the calculator to its initial default

setup.

• The contents of this manual are subject to change without notice.

• The displays and illustrations (such as key markings) shown in this User’s

Guide are for illustrative purposes only, and may differ somewhat from

the actual items they represent.

• Company and product names used in this manual may be registered

trademarks or trademarks of their respective owners.

Initializing the Calculator

Perform the following procedure when you want to initialize the calculator

and return the calculation mode and setup (except for the Contrast setting)

to their initial default settings. Note that this operation also clears all data

currently in calculator memory.

  (RESET) (Initialize All) (Yes)

Precautions

Safety Precautions

Battery

• Keep batteries out of the reach of small children.

• Use only the type of battery speciﬁed for this calculator in this manual.

Handling Precautions

• Even if the calculator is operating normally, replace the battery at least

once every three years (LR44) or two years (R03 (UM-4)). A dead battery

can leak, causing damage to and malfunction of the calculator. Never

leave a dead battery in the calculator. Do not try using the calculator

while the battery is completely dead (fx-991EX).

• The battery that comes with the calculator discharges slightly during

shipment and storage. Because of this, it may require replacement

sooner than the normal expected battery life.

• Avoid use and storage of the calculator in areas subjected to

temperature extremes, and large amounts of humidity and dust.

• Do not subject the calculator to excessive impact, pressure, or bending.

• Never try to take the calculator apart.

• Use a soft, dry cloth to clean the exterior of the calculator.

• Whenever discarding the calculator or batteries, be sure to do so in

accordance with the laws and regulations in your particular area.

Produktspezifikationen

Marke:	Casio
Kategorie:	Taschenrechner
Modell:	FX-991EX
Display-Typ:	LCD
Breite:	77 mm
Tiefe:	165.5 mm
Gewicht:	90 g
Produktfarbe:	Black, White
Steuerung:	Tasten
Akku-/Batterietyp:	LR44
Höhe:	11.1 mm
Energiequelle:	Batterie/Solar
Display-Hintergrundbeleuchtung:	Nein
Typ:	Wissenschaftlicher Taschenrechner
Anzahl unterstützter Akkus/Batterien:	1
Betrieb:	552
Formfaktor:	Tasche
Textzeilen:	2 Zeilen
Abdeckung:	Nein
Konvertierung zwischen:	Decimal, Fraction, Percent
Display klappbar:	Nein
Stellen:	16 Ziffern
Zweites Display:	Nein
Displaynummern der Buchstaben:	16
Zufallszahlen/Ganzzahlgenerator:	Ja
Winkel von Grad konvertieren in:	Gradian, Radian
Display-Auflösung:	192 x 63 Pixel