Casio Fx-115ES Manual de usuario

http://world.casio.com/edu/

RCA502160-001V01

fx-115ES

fx-991ES

User's Guide

CASIO Europe GmbH

Bornbarch 10, 22848 Norderstedt, Germany

E-1

About this Manual

•The MATH mark indicates an example that uses Math format,

while the LINE mark indicates Linear format. For details about

input/output formats, see “Specifying the Input/Output Format”.

•Keycap markings indicate what a key inputs or what function it

performs.

Example: 1, 2, +, -, !, A, etc.

•Pressing the 1or Skey followed by a second key performs

the alternate function of the second key. The alternate function is

indicated by the text printed above the key.

•The following shows what the different colors of the alternate

function key text mean.

If key marking It means this:

text is this color:

Ye llow Press 1and then the key to access

the applicable function.

Red Press Sand then the key to input the

applicable variable, constant, or symbol.

Purple (or enclosed Enter the CMPLX Mode to access the

in purple brackets) function.

Green (or enclosed Enter the BASE-N Mode to access the

in green brackets) function.

•The following shows an example of how an alternate function

operation is represented in this User’s Guide.

Example: 1s(sin–1)1=

Indicates the function that is accessed by the key

operation (1s) before it. Note that this is not part

of the actual key operation you perform.

sin

–1

{D}

Keycap function

Alternate function

E-2

•The following shows an example of how a key operation to select

an on-screen menu item is represented in this User’s Guide.

Example: 1(Setup)

Indicates the menu item that is selected by the number

key operation (1) before it. Note that this is not part

of the actual key operation you perform.

•The cursor key is marked with four arrows,

indicating direction, as shown in the

illustration nearby.In this User’s Guide, cursor

key operation is indicated as f, c, d,

and e.

•The displays and illustrations (such as key markings) shown in

this User’s Guide and the separate Appendix are for illustrative

purposes only, and may differ somewhat from the actual items

they represent.

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

•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.

kUsing the Separate Appendix

Whenever you see the symbol Appendix in this manual, it

means you should refer to the separate Appendix.

Example numbers (like “<#021>”) in this User’s Guide refer to the

corresponding example number in the Appendix.

Specify the angle unit in accordance with the marks in the Appendix:

Deg : Specify Degree for the angle unit.

Rad : Specify Radian for the angle unit.

Initializing the Calculator

Perform the following procedure when you want to initialize the

calculator and return the calculation mode and setup to their initial

default settings. Note that this operation also clears all data currently

in calculator memory.

19(CLR)3(All)=(Yes)

•For information about calculation modes and setup settings, see

“Calculation Modes and Calculator Setup”.

•For information about memory, see “Using Calculator Memory”.

REPLAY

E-3

Safety Precautions

Be sure to read the following safety precautions before using this

calculator. Keep this manual handy for later reference.

Caution

This symbol is used to indicate information that can result in

personal injury or material damage if ignored.

Battery

•After removing the battery from the calculator, put it in a safe

place where it will not get into the hands of small children and

accidentally swallowed.

•Keep batteries out of the reach of small children. If accidentally

swallowed, consult with a physician immediately.

•Never charge the battery, try to take the battery apart, or allow

the battery to become shorted. Never expose the battery to

direct heat or dispose of it by incineration.

•Improperly using a battery can cause it to leak and damage

nearby items, and can create the risk of fire and personal injury.

•Always make sure that the battery’s positive kand negative

lends are facing correctly when you load it into the

calculator.

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

this manual.

Disposing of the Calculator

•Never dispose of the calculator by burning it. Doing so can

cause certain components to suddenly burst, creating the risk

of fire and personal injury.

E-4

Handling Precautions

•Be sure to press the Okey before using the calculator for

the first time.

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

at least once every three years.

A dead battery can leak, causing damage to and malfunction of

the calculator. Never leave a dead battery in the calculator.

•The battery that comes with this unit discharges slightly during

shipment and storage. Because of this, it may require

replacement sooner than the normal expected battery life.

•Low battery power can cause memory contents to become

corrupted or lost completely. Always keep written records of

all important data.

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

temperature extremes.

Very low temperatures can cause slow display response, total

failure of the display, and shortening of battery life. Also avoid

leaving the calculator in direct sunlight, near a window, near a heater

or anywhere else it might be exposed to very high temperatures.

Heat can cause discoloration or deformation of the calculator’s

case, and damage to internal circuitry.

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

large amounts of humidity and dust.

Take care never to leave the calculator where it might be splashed

by water or exposed to large amounts of humidity or dust. Such

conditions can damage internal circuitry.

•Never drop the calculator or otherwise subject it to strong

impact.

•Never twist or bend the calculator.

Avoid carrying the calculator in the pocket of your trousers or other

tight-fitting clothing where it might be subjected to twisting or

bending.

•Never try to take the calculator apart.

•Never press the keys of the calculator with a ballpoint pen or

other pointed object.

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

If the calculator becomes very dirty, wipe it off with a cloth moistened

in a weak solution of water and a mild neutral household detergent.

Wring out all excess liquid before wiping the calculator. Never use

thinner, benzene or other volatile agents to clean the calculator.

Doing so can remove printed markings and can damage the case.

E-5

Before Using the Calculator

kRemoving the Hard Case

Before using the calculator, slide its hard case downwards to remove

it, and then affix the hard case to the back of the calculator as shown

in the illustration below.

kTurning Power On and Off

•Press Oto turn on the calculator.

•Press 1A(OFF) to turn off the calculator.

kAdjusting Display Contrast

1N(SETUP)c6(]CONT')

This displays the contrast adjustment screen. Use dand eto

adjust display contrast. After the setting is the way you want, press

•You can also adjust contrast using dand ewhile the mode

menu (which appears when you press N) is on the display.

Important!

•If adjusting display contrast does not improve display readability, it

probably means that battery power is low. Replace the battery.

E-6

kAbout the Display

Your calculator has a 31-dot ×96-dot LCD screen.

Example:

kDisplay Indicators

Sample Display:

This Means this:

indicator:

The keypad has been shifted by pressing the 1

key. The keypad will unshift and this indicator will

disappear when you press a key.

The alpha input mode has been entered by pressing

the Skey. The alpha input mode will be exited

and this indicator will disappear when you press a

key.

MThere is a value stored in independent memory.

STO

The calculator is standing by for input of a variable

name to assign a value to the variable.This indicator

appears after you press 1t(STO).

RCL

The calculator is standing by for input of a variable

name to recall the variable’s value. This indicator

appears after you press t.

STAT The calculator is in the STAT Mode.

CMPLX The calculator is in the CMPLX Mode.

MAT The calculator is in the MATRIX Mode.

VCT The calculator is in the VECTOR Mode.

7The default angle unit is degrees.

8The default angle unit is radians.

9The default angle unit is grads.

FIX A fixed number of decimal places is in effect.

SCI A fixed number of significant digits is in effect.

Math Math style is selected as the input/output format.

Calculation history memory data is available and can

be replayed, or there is more data above/below the

current screen.

Disp The display currently shows an intermediate result

of a multi-statement calculation.

{

Input expression

Calculation result

CMPLX

E-7

Important!

•For a very complex calculation or some other type of calculation

that takes a long time to execute, the display may show only the

above indicators (without any value) while it performs the calculation

internally.

Calculation Modes and

Calculator Setup

kCalculation Modes

When you want to perform this type of Select this

operation: mode:

General calculations COMP

Complex number calculations CMPLX

Statistical and regression calculations STAT

Calculations involving specific number systems

BASE-N

(binary, octal, decimal, hexadecimal)

Equation solution EQN

Matrix calculations MATRIX

Generation of a number table based on an TABLE

expression

Vector calculations VECTOR

Specifying the Calculation Mode

(1) Press Nto display the mode

menu.

(2) Press the number key that corresponds to the mode you want to

select.

• To select the CMPLX Mode, for example, press 2.

kConfiguring the Calculator Setup

Pressing 1N(SETUP) displays the setup menu, which you can

use to control how the calculations are executed and displayed.The

setup menu has two screens, which you can jump between using

cand f.

E-8

•See “Adjusting Display Contrast” for information about how to use

“]CONT'”.

Specifying the Input/Output Format

For this input/output format: Perform this key operation:

Math 1N1(MthIO)

Linear 1N2(LineIO)

•Math format causes fractions, irrational numbers, and other

expressions to be displayed as they are written on paper.

•Linear format causes fractions and other expressions to be

displayed in a single line.

Specifying the Default Angle Unit

To specify this as the default Perform this key operation:

angle unit:

Degrees 1N3(Deg)

Radians 1N4(Rad)

Grads 1N5(Gra)

90°= radians = 100 grads

Specifying the Number of Display Digits

To specify this: Perform this key operation:

Number of Decimal Places 1N6(Fix)0–9

Number of Significant Digits 1N7(Sci)0–9

Exponential Display Range 1N8(Norm)1(Norm1)

or 2(Norm2)

Calculation Result Display Examples

•Fix: The value you specify (from 0 to 9) controls the number of

decimal places for displayed calculation results.Calculation results

are rounded off to the specified digit before being displayed.

Example: 100 ÷7 = 14.286 (Fix3)

14.29 (Fix2)

•Sci: The value you specify (from 1 to 10) controls the number of

significant digits for displayed calculation results.Calculation results

are rounded off to the specified digit before being displayed.

Example: 1 ÷7 = 1.4286 ×10–1 (Sci5)

1.429 ×10–1 (Sci4)

Linear FormatMath Format

Math

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