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Sharp WriteView EL-W535XG Operation Manuals

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PRINTED IN CHINA / IMPRIMÉ EN CHINE / IMPRESO EN CHINA

16FSC(TINSEA152EHZZ)

B1096

INTRODUCTION

About the calculation examples (including some formulas

and tables), refer to the reverse side of this manual.

After reading this manual, store it in a convenient location for

future reference.

Note: Some of the models described in this manual may not be

available in some countries.

Operational Notes

• Donotcarrythecalculatoraroundinyourbackpocket,asit

maybreakwhenyousitdown.Thedisplayismadeofglass

andisparticularlyfragile.

•Keepthecalculatorawayfromextremeheatsuchasona

cardashboardornearaheater,andavoidexposingitto

excessivelyhumidordustyenvironments.

• Sincethisproductisnotwaterproof,donotuseitorstoreit

whereuids,forexamplewater,cansplashontoit.Raindrops,

waterspray,juice,coffee,steam,perspiration,etc.willalso

cause malfunction.

• Cleanwithasoft,drycloth.Donotusesolventsorawetcloth.

Avoid using a rough cloth or anything else that may cause

scratches.

• Donotdropitorapplyexcessiveforce.

• Neverdisposeofbatteriesinare.

• Keepbatteriesoutofthereachofchildren.

• Forthesakeofyourhealth,trynottousethisproductforlong

periodsoftime.Ifyouneedtousetheproductforanextended

period,besuretoallowyoureyes,hands,arms,andbody

adequaterestperiods(about10–15minuteseveryhour).

Ifyouexperienceanypainorfatiguewhileusingthisproduct,

discontinue use immediately. If the discomfort continues,

pleaseconsultadoctor.

• Thisproduct,includingaccessories,maychangedueto

upgradingwithoutpriornotice.

NOTICE

• SHARPstronglyrecommendsthatseparatepermanent

writtenrecordsbekeptofallimportantdata.Datamaybe

lostoralteredinvirtuallyanyelectronicmemoryproduct

under certain circumstances. Therefore, SHARP assumes no

responsibilityfordatalostorotherwiserenderedunusable

whetherasaresultofimproperuse,repairs,defects,battery

replacement,useafterthespeciedbatterylifehasexpired,

or any other cause.

• SHARPwillnotbeliablenorresponsibleforanyincidental

orconsequentialeconomicorpropertydamagecaused

bymisuseand/ormalfunctionsofthisproductandits

peripherals,unlesssuchliabilityisacknowledgedbylaw.

♦PresstheRESETswitch(ontheback),withthetipofa

ball-pointpenorsimilarobject,onlyinthefollowingcases.

Donotuseanobjectwithabreakableorsharptip. Note that

pressingtheRESETswitcherasesalldatastoredinmemory.

• Whenusingforthersttime

• Afterreplacingthebattery

• Toclearallmemorycontents

•

Whenanabnormalconditionoccursandallkeysareinoperative

♦

If service should be required on this calculator, have the calculator

servicedintheregion(country)whereyoupurchasedit.

Hard Case

DISPLAY

Dot

matrix

display

Mantissa Exponent

•

Duringactualuse,notallsymbolsaredisplayedatthesametime.

• Onlythesymbolsrequiredfortheusageunderinstructionare

showninthedisplayandcalculationexamples.

/

/

: Indicates that some contents are hidden in the directions

shown.

2ndF: Appearswhen@ispressed,indicatingthatthe

functionsshowninthesamecoloras@ are enabled.

HYP: Indicates that Hhasbeenpressedandthehyperbolic

functions are enabled. If @ >ispressed,the

symbols “2ndF HYP”appear,indicatingthatinverse

hyperbolicfunctionsareenabled.

ALPHA: Appearswhen;ispressed,indicatingthatthe

functionsshowninthesamecoloras; are enabled.

Appearswhenx or tispressed,andentry(recall)

ofmemorycontentscanbeperformed.

FIX/SCI/ENG/N1/N2:Indicatesthenotationusedtodisplayavalue

and changes by SET UP menu. N1isdisplayedon-screen

as “NORM1”, and N2 as “NORM2”.

DEG/RAD/GRAD: Indicates angular units.

BUSY: Appearsduringtheexecutionofacalculation.

W-VIEW:IndicatesthattheWriteVieweditorisselected.

M: Indicates that a numerical value is stored in the

independentmemory(M).

BEFORE USING THE CALCULATOR

Press jtoturnthecalculatoron.Thedatathatwason-screen

whenthepowerwasturnedoffwillappearonthedisplay.

Press @ o to turn it off.

Key Notations Used in this Manual

Tospecify

e

x

:

@ "

Tospecifyln:

i

TospecifyE:

; E

• Functionsthatareprintedingrayadjacenttothekeysare

effectiveinspecicmodes.

• Themultiplicationoperator“

” is differentiated from the letter “X”

inthismanualasfollows:

Tospecifythemultiplicationoperator:k

Tospecifytheletter“X”:; X

• Incertaincalculationexamples,whereyouseetheo symbol,

thekeyoperationsandcalculationresultsareshownasthey

wouldappearintheLineeditor.

•

Ineachexample,pressjtoclearthedisplayrst.Unless

otherwisespecied,calculationexamplesareperformedinthe

WriteVieweditor(

J 2 0 0

)withthedefaultdisplay

settings.

Clearing the Entry and Memories

Operation

Entry

(Display)

A–F,

M, X, Y

D1–D3 ANS STAT *

1

j

О

Х Х Х Х

@ Z

О

Х Х

О О

Mode selection (b)

О

Х Х Х

Х

*

2

@ P 0

О

Х Х Х Х

@ P 1 0

О О О О О

@ P 2 0

*

3

О О О О О

RESETswitch

*

3

О О О О О

О

: Clear

Х

: Retain

*1 Statistical data (entered data)

*2 Clearedwhenchangingbetweensub-modesinSTATmode.

*3 TheRESEToperationwillerasealldatastoredinmemoryand

restore the calculator’s default settings.

Memory clear key

Press @ Ptodisplaythemenu.

• Toinitializethedisplaysettings,press0.Theparametersset

asfollows:

• Angularunit:DEG

• Displaynotation:NORM1

• N-base:DEC

•

Recurring decimal: OFF

Mode Selection

NORMALmode:b 0

Usedtoperformarithmeticoperationsandfunctioncalculations.

STAT mode: b 1

Usedtoperformstatisticaloperations.

TABLEmode:b 2

Used to illustrate the changes in values of a function in table format.

DRILLmode:b 3

Usedtopracticemathandmultiplicationtabledrills.

HOME Key

Press 7toreturntoNORMALmodefromothermodes.

Note: Equationsandvaluescurrentlybeingenteredwilldisappear,

inthesamewayaswhenthemodeischanged.

SET UP Menu

Press JtodisplaytheSETUPmenu.

Press jtoexittheSETUPmenu.

Note: YoucanpressNtoreturntothepreviouslydisplayed

parentmenu.

Determination of the angular unit (degrees, radians, and grades)

DEG(°): J 0 0 (default)

RAD (rad): J 0 1

GRAD(g): J 0 2

Selecting the display notation and decimal places

1

TwosettingsofFloatingpoint(NORM1andNORM2),Fixeddecimal

point(FIX),Scienticnotation(SCI),andEngineeringnotation(ENG).

• WhenJ 1 0 (FIX) or J 1 2(ENG)is

pressed,thenumberofdecimalplaces(TAB)canbesettoany

valuebetween0and9.

•WhenJ 1 1(SCI)ispressed,thenumberofsignicant

digitscanbesettoanyvaluebetween0and9.Entering0willset

a10-digitdisplay.

Setting the floating point number system in scientific notation

NORM1 (the default) and NORM2. A number is automatically

displayedinscienticnotationoutsideapresetrange:

NORM1 (J 1 3): 0.000000001

≤|x|≤ 9,999,999,999

NORM2 (J 1 4): 0.01

≤|x|≤ 9,999,999,999

Selecting the editor and setting the answer display

2

ThiscalculatorhasthefollowingtwoeditorsinNORMALmode:

WriteViewandLine.

SetthedisplayformatfornumericalcalculationresultsinWriteView

editor.

The WriteView editor

EXACT(a/b,r,

p

) J 2 0 0 (default)

APPROX. J 2 0 1

The Line editor J 2 1

Notes:

• When“EXACT(a/b,r,

p)”isset,resultswillappearinfraction

format or irrational number format (including

p and r)when

displayispossible.

• When“APPROX.”isset,resultswillbedecimaldisplayor

fractiondisplay,andwillbenotshowninirrationalnumberformat

(including

p and r).

• PressU to change the calculation results to another format

thatcanbedisplayed.

Adjusting the display contrast

Press J 3, then + or &toadjustthecontrast.Press

jtoexit.

Insert and overwrite entry methods

WhenusingtheLineeditor,youcanchangetheentrymethodfrom

“INSERT”(thedefault)to“OVERWRITE”.

Afteryouswitchtotheoverwritemethod(bypressingJ 4 1),

thetriangularcursorwillchangetoarectangularone,andthenumberor

functionunderneathitwillbeoverwrittenasyoumakeentries.

Setting the recurring decimal

3

InNORMALmode,calculationresultscanbeshowninarecurring

decimal format.

Recurring decimal is OFF: J 5 0 (default)

Recurring decimal is ON: J 5 1

• IntheWriteVieweditor,therecurringpartisindicatedby“

−

”. In

theLineeditor,therecurringpartisindicatedinparentheses.

• Ifover10digits,includingtherecurringpart,theresultcannotbe

displayedinrecurringdecimalformat.

Setting of the decimal point

Youcanshowthedecimalpointinthecalculationresultaseithera

dot or a comma.

DOT: J 6 0 (default)

COMMA: J 6 1

• Duringentry,thedecimalpointisonlyshownasadot.

ENTERING, DISPLAYING, AND EDITING THE EQUATION

4

The WriteView Editor

Entry and display

IntheWriteVieweditor,youcanenteranddisplayfractionsor

certainfunctionsasyouwouldwritethem.

• TheWriteVieweditorcanbeusedinNORMALmode.

Displaying calculation results (when EXACT is selected)

Whenpossible,calculationresultswillbedisplayedusingfractions,

r, and

p

.WhenyoupressU,thedisplaywillcyclethroughthe

followingdisplaystyles:

•

Mixedfractions(withorwithout

p

)

→

improperfractions(withor

without

p

)

→

decimal numbers

• Properfractions(withorwithout

p

)

→

decimal numbers

• Irrationalnumbers(squareroots,fractionsmadeusingsquare

roots)

→

decimal numbers

Notes:

•

Inthefollowingcases,calculationresultsmaybedisplayedusingr:

• Arithmeticoperationsandmemorycalculations

• Trigonometriccalculations

Entry value

DEG multiplesof15

RAD

multiplesof

1



12

p

GRAD

multiplesof

50



3

• Intrigonometriccalculations,when

entering values such as those in

the table to the right, results may be

shownusingr.

• Improper/properfractionswillbe

convertedtoanddisplayedas

decimalnumbersifthenumberofdigitsusedintheirexpression

isgreaterthannine.Inthecaseofmixedfractions,themaximum

numberofdisplayabledigits(includingintegers)iseight.

• Ifthenumberofdigitsinthedenominatorofafractionalresult

that uses

p

is greater than three, the result is converted to and

displayedasadecimalnumber.

The Line Editor

Entry and display

IntheLineeditor,youcanenteranddisplayequationslinebyline.

Notes:

• Uptothreelinesoftextmaybeviewedonthescreenatonetime.

• IntheLineeditor,calculationresultsaredisplayedindecimalform

orlinefractionnotationifpossible.

• UseUtoswitchthedisplayformattofractionalformor

decimalform(ifpossible).

Editing the Equation

Justafterobtainingananswer,pressingl brings you to the

endoftheequationandpressingr brings you to the beginning.

Press l, r, u, or d to move the cursor. Press @

l or @ rtojumpthecursortothebeginningortheend

of the equation.

Back space and delete key

To delete a number or function, move the cursor to the right of it,

thenpressN. You can also delete a number or function that the

cursorisdirectlyoverbypressing@ y.

Note: Inamulti-levelmenu,youcanpressNtobacktothe

previousmenulevel.

Multi-line Playback Function

5

Thiscalculatorisequippedwithafunctiontorecallprevious

equationsandanswersinNORMALmode.

Pressing uwill

displaythepreviousequation.

The number of characters that can be

savedislimited.Whenthememoryisfull,storedequationswillbe

deletedtomakeroom,startingwiththeoldest.

• Toeditanequationafterrecallingit,pressl or r.

• Themulti-linememorywillbeclearedbythefollowingoperations:

@ Z

, mode change, RESET, N-base conversion, angular

unit conversion, editor change (

J 2 0 0 ,J 2

0 1 or J 2 1

), and memory clear (@ P

1 0).

Priority Levels in Calculation

Thiscalculatorperformsoperationsaccordingtothefollowingpriority:

1

Fractions (1m4, etc.)

2

Functionsprecededbytheirargument

(x

−

1

, x

2

, n!, etc.)

3

y

x

,

x

r

4

Impliedmultiplicationofamemory

value (2Y, etc.)

5

Functionsfollowedbytheirargument(sin,cos,

etc.)

6

Impliedmultiplicationofafunction(2sin30

,

A

1



4

, etc.)

7

nCr,nPr,GCD,LCM

8

×, ÷, int÷

9

+, −

10

AND

11

OR, XOR,

XNOR

12

=, M+, M−, M, ►DEG,►RAD, ►GRAD,

→

r

q

,

→

xy

,

and other calculation ending instructions

• Ifparenthesesareused,parenthesizedcalculationshave

precedenceoveranyothercalculations.

SCIENTIFIC CALCULATIONS

• Pressb 0toselectNORMALmode.

Arithmetic Operations

6

• Theclosingparenthesis)justbefore= or m may be

omitted.

Constant Calculations

7

• Inconstantcalculations,theaddendbecomesaconstant.

Subtractionanddivisionareperformedinthesamemanner.For

multiplication,themultiplicandbecomesaconstant.

• Inconstantcalculations,constantswillbedisplayedasK.

Conversion to Engineering notation

8

You can use ; < or ; > to convert the calculation

result to engineering notation.

• Press; <todecreasetheexponent.Press; > to

increasetheexponent.

• Thesettings(FSE)intheSETUPmenudonotchange.

Functions

9

• Refertothecalculationexamplesforeachfunction.

• IntheLineeditor,thefollowingsymbolsareused:

•

:toindicateanexpression’spower.(m, @ ", @ Y)

• :toseparateintegers,numerators,anddenominators.(W,

@ k)

• Whenusing@ O or @ WintheLineeditor,values

areenteredinthefollowingway:

• logn(base, value)

• absvalue

Random Function

The random function has four settings. (This function cannot be

selectedwhileusingtheN-basefunction.)Togeneratefurther

randomnumbersinsuccession,presse. Press jtoexit.

Random numbers

Apseudo-randomnumber,withthreesignicantdigitsfrom0upto

0.999,canbegeneratedbypressing@ w 0 e.

Note: IntheWriteVieweditor,theresultwillbeafractionor0.

Random dice

Tosimulateadie-rolling,arandomintegerbetween1and6canbe

generatedbypressing@ w 1 e.

Random coin

Tosimulateacoinip,0(heads)or1(tails)canberandomly

generatedbypressing@ w 2 e.

Random integer

Youcanspecifyarangefortherandomintegerwith“R.Int(”only.

R.Int(minimum value, maximum value)

Forexample,ifyouenter@ w 3 1

H

99 ) e, a

randomintegerfrom1to99willbegenerated.

Angular Unit Conversions

10

Each time @ ]ispressed,theangularunitchangesinsequence.

Memory Calculations

11

MemorycalculationscanbeperformedinNORMALandSTATmodes.

Temporary memories (A–F, X and Y)

Press xandavariablekeytostoreavalueinmemory.

Press tandavariablekeytorecallthevaluefromthatmemory.

Toplaceavariableinanequation,press;andavariablekey.

Independent memory (M)

Inadditiontoallthefeaturesoftemporarymemories,avaluecan

beaddedtoorsubtractedfromanexistingmemoryvalue.

Press j x Mtocleartheindependentmemory(M).

Last answer memory (ANS)

Thecalculationresultobtainedbypressing= or any other

calculation ending instruction is automatically stored in the last

answermemory.

Notes:

•

Calculationresultsfromthefunctionsindicatedbeloware

automaticallystoredintheXorYmemoriesreplacinganyexisting

values.

•

→

r

q

,

→

xy

: X memory (

r

or

x

), Y memory (q or

y

)

• Two

x

´ values from a quadratic regression calculation in

STAT mode: X memory (1:), Y memory (2:)

• Useoft or ;willrecallthevaluestoredinmemory

usingupto14digits.

Definable memories (D1–D3)

Youcanstorefunctionsoroperationsindenablememories

(D1–D3).

•

Tostoreafunctionoroperation,pressx,followedbyadenable

memorykey(I, J, or K),followedbytheoperationyou

wanttostore.Menu-relatedoperations,suchasJ, cannot be

stored. Press jtoreturntothepreviousdisplay.

• Tocallastoredfunctionoroperation,pressthecorresponding

memorykey.Callingastoredfunctionwilldonothingifthe

functionthatiscalledwouldbeunusableinthecurrentcontext.

•

Anyfunctionsoroperationsthatarestoredinadenablememory

willbereplacedwhenyousaveanewoneintothatmemory.

• Youcannotstorefunctionsoroperationsindenablememories

whenenteringvaluesoritemsinSTATmode.

Memory List

Press ; 9todisplayalistofthevaluessavedinmemory.

Thevaluesareshownina9-characterrange.

Applicablememories:A,B,C,D,E,F,X,Y,M

Chain Calculations

12

Thepreviouscalculationresultcanbeusedinthesubsequent

calculation.However,itcannotberecalledafterenteringmultiple

instructions.

Fraction Calculations

13

Arithmeticoperationsandmemorycalculationscanbeperformed

usingfractions.InNORMALmode,conversionbetweenadecimal

numberandafractioncanbeperformedbypressingU.

Notes:

•

Improper/properfractionswillbeconvertedtoanddisplayedas

decimalnumbersifthenumberofdigitsusedintheirexpression

isgreaterthannine.Inthecaseofmixedfractions,themaximum

numberofdisplayabledigits(includingintegers)iseight.

• Toconvertasexagesimalvaluetoafraction,rstconvertitby

pressing@ :.

Binary, Pental, Octal, Decimal, and Hexadecimal

Operations (N-base)

14

ConversionscanbeperformedbetweenN-basenumbersin

NORMALmode.Thefourbasicarithmeticoperations,calculations

withparentheses,andmemorycalculationscanalsobeperformed,

alongwiththelogicaloperationsAND,OR,NOT,NEG,XOR,and

XNORonbinary,pental,octal,andhexadecimalnumbers.

Note: ThehexadecimalnumbersA–Fareenteredbypressing

m

A

, *

B

, A

C

, l

D

, i

E

, and H

F

.

Inthebinary,pental,octal,andhexadecimalsystems,fractional

partscannotbeentered.Whenadecimalnumberhaving

afractionalpartisconvertedintoabinary,pental,octal,or

hexadecimalnumber,thefractionalpartwillbetruncated.

Likewise,whentheresultofabinary,pental,octal,orhexadecimal

calculationincludesafractionalpart,thefractionalpartwillbe

truncated.Inthebinary,pental,octal,andhexadecimalsystems,

negativenumbersaredisplayedasacomplement.

Time, Decimal, and Sexagesimal Calculations

15

Conversionbetweendecimalandsexagesimalnumberscanbe

performed.Inaddition,thefourbasicarithmeticoperationsand

memorycalculationscanbeperformedusingthesexagesimal

system.Notationforsexagesimalisasfollows:

Coordinate Conversions

16

• Beforeperformingacalculation,selecttheangularunit.

• Theresultsofcoordinateconversionswillbedisplayedas

decimalnumbersevenintheWriteVieweditor.

Rectangular coord. Polar coord.

Modify Function

17

Decimalcalculationresultsareinternallyobtainedinscientic

notation,withupto14digitsinthemantissa.However,since

calculationresultsaredisplayedintheformdesignatedbythe

displaynotationandthenumberofdecimalplacesindicated,the

internalcalculationresultmaydifferfromthatshowninthedisplay.

By using the modify function (@ n), the internal value is

convertedtomatchthatofthedisplay,sothatthedisplayedvalue

canbeusedwithoutchangeinsubsequentoperations.

• WhenusingtheWriteVieweditor,ifthecalculationresultis

displayedusingfractionsorirrationalnumbers,pressU to

convertittodecimalformrst.

Calculating the Greatest Common Divisor (GCD)

WhatistheGCDof

24and36?

j

24

@

=

36

=

12

.

Calculating the Least Common Multiple (LCM)

WhatistheLCMof

15and9?

j

15

@

?

9

=

45

.

Calculating Quotient and Remainder

18

• ”Q”indicates“Quotient”,and“R”indicates“Remainder”.

• Pressing@ 6cannotbefollowedbypressingakeyfor

anotheroperationsuchas(+,–,×,÷),otherwiseanerrorwill

result.

• Thequotientandremainderareshownin“NORM1”format.

Ifnotalldigitscanbedisplayedin“NORM1”format,normal

divisionisperformed.

Prime Factorization

19

InNORMALmode,thecalculationresultcanbeshownasa

productofprimenumbers.

•Apositiveintegergreaterthan2andnomorethan10digitscan

befactoredintoprimes.

•Anumberthatcannotbefactoredintoaprimenumberwith3

digitsorshorterisshowninparentheses.

•Thecalculationresultofprimefactorizationisdisplayed

accordingtotheeditorsetting(W-VIEWorLINE).

• Thecalculationresultofprimefactorizationmayextendoffthe

edgesofthescreen.Youcanseethosepartsbypressingl

or r.Tojumptotheleftendorrightend,press@ l

or @ r.

STATISTICAL CALCULATIONS

20 21

StatisticalcalculationscanbeperformedinSTATmode.

Thereareeightsub-modeswithinSTATmode.Pressb 1,

thenpressthenumberkeythatcorrespondstoyourchoice:

0 (SD): Single-variable statistics

1 (a+bx):Linearregression

2 (a+bx+cx

2

):Quadraticregression

3 (a•e^bx):Eulerexponentialregression

4 (a+b•lnx):Logarithmicregression

5 (a•x^b):Powerregression

6 (a+b/x): Inverse regression

7 (a•b^x):Generalexponentialregression

Thestatisticaldatainputscreenappears.

Afterenteringstatisticaldatafromtheinputscreen,

press

_

or

j

andclosetheinputtable

.Youcanthencheckstatistical

values from the STAT menu

(

; 8

)

andspecifystatistical

variables.

D

ata Entry and Correction

Data entry

Entryeld

 Single-variabledatatable Two-variabledatatable

• Afterenteringthedata,

press

e

.Theinputisnalizedand

thecursormovestothenextline.Ifdatawasnotenteredinan

x

or

y,0isentered,1isenteredinFRQ(frequency),andthecursor

movestothenextline.

•

You can use

H

toenterXandFRQ(orX,Y,andFRQ)atonce.

• Intheinputtable,upto6digitsaredisplayedforeachvalue,

includingthesignanddecimalpoint.Anyvaluesthatexceed6

digitsinlengtharedisplayedinexponentnotation.

•

Upto100dataitemscanbeentered.Withsingle-variabledata,

adataitemwithanassignedfrequencyofoneiscountedas

onedataitem,whileanitemwithanassignedfrequencyof2

orhigherisstoredasasetoftwodataitems.Withtwo-variable

data,asetofdataitemswithanassignedfrequencyofoneis

countedastwodataitems,whileasetofitemswithanassigned

frequency of 2 or higher is stored as a set of three data items.

• Toexecutestatisticalcalculation,press

_

or

j

and close

theinputtable.

Data correction

Use l, r, u, or d to move the cursor and select

the desired data. Press @ u or @ dtojumpthe

cursor to the beginning or end of the data.

Data correction

Movethecursortothedatathatyouwanttocorrect,enterthe

numericvalue,andpresse.

Data insertion

Toinsertalineinfrontofthecursorposition,press

;

T.

Theinitialvaluesenteredintheinserteddataare0inxandy,

and1inFRQ.

Data deletion

Todeletetheentirelinewherecursorispositioned,press@ y.

Notes:

• InSTATmode,allstatisticaldatawillbeerasedifthesubmode

is changed or

@

Z

ispressed.

• InSTATmode,press

_

todisplaytheinputtable.

Statistical Calculations and Variables

Thefollowingstatisticscanbeobtainedforeachstatistical

calculation(refertothetablebelow):

Single-variable statistical calculation

Statistics of

1

and

3

.

Linear regression calculation

Statistics of

1

,

2

and

4

. In addition, the estimate of

y

for a given

x

(estimate

y

´) and the estimate of

x

for a given

y

(estimate

x

´).

Quadratic regression calculation

Statistics of

1

,

2

and

4

.Andcoefcients

a

,

b

,

c

in the quadratic

regression formula (

y

=

a

+

bx

+

cx

2

). (For quadratic regression

calculations,nocorrelationcoefcient(

r

) can be obtained.)

Whentherearetwo

x

´values,eachvaluewillbedisplayedwith“1:”

or“2:”,andstoredseparatelyintheXandYmemories.

Youcanalsospecifythe1stvalue(x1’) and the 2nd value (x2’)separately.

Euler exponential regression, logarithmic regression,

power regression, inverse regression,

and general exponential regression calculations

Statistics of

1

,

2

and

4

. In addition, the estimate of

y

for a

given

x

and the estimate of

x

for a given

y

. (Since the calculator

converts each formula into a linear regression formula before actual

calculationtakesplace,itobtainsallstatistics,exceptcoefcients

a

and

b

, from converted data rather than entered data.)

1

n

Numberofsamples

x

–

Meanofsamples(

x

data

)

sx

Samplestandarddeviation(

x

data

)

s

2

x

Samplevariance(

x

data)

sx

Populationstandarddeviation(

x

data

)

s

2

x

Populationvariance(

x

data)

Σ

x

Sumofsamples(

x

data

)

Σ

x

2

Sumofsquaresofsamples(

x

data

)

xmin

Minimumvalueofsamples

(

x

data

)

xmax

Maximumvalueofsamples(

x

data

)

2

y

–

Meanofsamples(

y

data

)

sy

Samplestandarddeviation

(

y

data

)

s

2

y

Samplevariance(

y

data)

sy

Populationstandarddeviation

(

y

data

)

s

2

y

Populationvariance(

y

data)

Σ

y

Sumofsamples

(

y

data

)

Σ

y

2

Sumofsquaresofsamples

(

y

data

)

Σ

x

y

Sumofproductsofsamples(

x

,

y

)

Σ

x

2

y

Sumofproductsofsamples(

x

2

,

y

)

Σ

x

3

Sumof3rdpowersofsamples

(

x

data

)

Σ

x

4

Sumof4thpowersofsamples

(

x

data

)

ymin

Minimumvalueofsamples

(

y

data

)

ymax

Maximumvalueofsamples

(

y

data

)

3

Q

1

Firstquartileofsample

(

x

data

)

Med

Medianofsample

(

x

data

)

Q

3

Thirdquartileofsample

(

x

data

)

4

r

Correlationcoefficient(ExceptQuadraticregression)

a

Coefficient of regression equation

b

Coefficient of regression equation

c

Coefficient of quadratic regression equation

R

2

Coefficientofdetermination(Quadraticregression)

r

2

Coefficientofdetermination(ExceptQuadraticregression)

STAT Menu

Afterclosingtheinputtable,youcanviewstatisticalvalues,view

regressioncoefcientvalues,andspecifystatisticalvariablesfrom

STAT menu (

; 8

).

;

8

0:Displaystatisticalvalues

;

8

1:Displayregressioncoefcientvalues

;

8

2:Specifystatisticalvaluevariables

;

8

3:

Specifystatisticalvalue(Σ related) variables

;

8

4:Specifymax/minvaluevariables

;

8

5:Specifyregressioncoefcientvariables

Notes:

• Listdisplayofregressioncoefcientvaluesandspecicationof

regressioncoefcientvariablesdonotappearinsingle-variable

statistical calculation.

•

Estimated values

x

’ and

y

’arespeciedwiththekeys(@

V

,

@

U

).Iftherearetwo

x

’values,youcanspecify

x

1’ and

x

2’ from the STAT menu (

;

8

5) to obtain the values

separately.

• Inthestatisticalvalueandregressioncoefcientvaluelists,you

cannotreturntothemenubypressingN.

Statistical Calculation Formulas

22

Anerrorwilloccurwhen:

• Theabsolutevalueoftheintermediateresultorcalculationresult

is equal to or greater than 1

× 10

100

.

• Thedenominatoriszero.

• Anattemptismadetotakethesquarerootofanegativenumber.

• Nosolutionexistsinthequadraticregressioncalculation.

TABLE MODE

23

Youcanseethechangesinvaluesofoneortwofunctionsusing

TABLEmode.

Setting a table

1. Press b 2toenterTABLEmode.

2.Enterafunction(Function1),andpresse.

3.Ifneeded,enterthe2ndfunction(Function2)andpresse.

4.Enterastartingvalue(X_Start:),andpresse.

The default starting value is 0.

5.Enterastepvalue(X_Step:).Thedefaultstepvalueis1.

•Youcanuseu and dtomovethecursorbetweenthe

startingvalueandstepvalue.

6. Press ewhenyounishenteringastepvalue.Atablewitha

variableXandthecorrespondingvalues(ANScolumn)appears,

displaying3linesbelowthestartingvalue.

Ifyouenteredtwofunctions,theANS1andANS2columnsappear.

You can use u and d to change the X value and see its

correspondingvaluesintableformat.

• Thetableisfordisplayonlyandyoucannoteditthetable.

• Thevaluesaredisplayedupto7digits,includingsignsanda

decimalpoint.

• Pressl or r to move the cursor to ANS column (ANS1

andANS2columnsifyouenteredtwofunctions)orXcolumn.

• Fulldigitsofthevalueonthecursoraredisplayedonthebottom

right.

Notes:

• Inafunction,only“X”canbeusedasavariable,andother

variables are all regarded as numbers (stored into the variables).

• Irrationalnumberssuchas

r and p can also be entered into a

startingvalueorastepvalue.Youcannotenter0oranegative

numberasastepvalue.

• YoucanuseWriteVieweditorwheninputtingafunction.

• ThefollowingfeaturesarenotusedinTABLEmode:coordinate

conversions,conversionbetweendecimalandsexagesimal

numbers, and angular unit conversions.

• Itmaytaketimetomakeatable,or“-------”maybedisplayed,

dependingonthefunctionenteredorconditionsspeciedforthe

variable X.

• Pleasenotethatwhenmakingatable,thevaluesforvariableX

arerewritten.

• Press

@

Z

or mode selection to return to the initial screen

of the mode, and return to the default values for the starting value

andstepvalue.

DRILL MODE

Math Drill: b 3 0

Mathoperationquestionswithpositiveintegersand0aredisplayed

randomly.Itispossibletoselectthenumberofquestionsand

operatortype.

MultiplicationTable(

× Table): b 3 1

Questionsfromeachrowofthemultiplicationtable(1to12)are

displayedseriallyorrandomly.

ToexitDRILLmode,pressb and select another mode.

Using Math Drill and × Table

1.

Press b

3

0 for Math Drill or b

3

1 for × Table.

2. Math Drill: Use u and d to select the number of

questions (25, 50, or 100).

× Table: Use u and dtoselectarowinthemultiplication

table (1 to 12).

3. Math Drill: Use l and rtoselecttheoperatortypefor

questions (

+, −, ×, ÷, or +−×÷).

× Table: Use l and rtoselecttheordertype(“Serial”or

“Random”).

4. Press e to start.

WhenusingMathDrillor

× Table (random order only), questions

arerandomlyselectedandwillnotrepeatexceptbychance.

5. Enteryouranswer.Pressj or N to clear the entered

numberandthenenterthecorrectanswer.

6. Press e.

•

Iftheansweriscorrect,“ ”appearsandthenextquestionisdisplayed.

• Iftheansweriswrong,“ ”appearsandthesamequestionis

displayed.Thiswillberegardedasanincorrectanswer.

• Ifyoupressewithoutenteringananswer,thecorrect

answerisdisplayedandthenthenextquestionisdisplayed.

Thiswillberegardedasanincorrectanswer.

7. Continueansweringtheseriesofquestionsbyenteringthe

answerandpressinge.

8. Afteryounish,presseandthenumberandpercentageof

correctanswersaredisplayed.

9. Press e to return to the initial screen for your current drill.

Ranges of Math Drill Questions

Therangeofquestionsforeachoperatortypeisasfollows.

+ Addition operator: “0

+ 0” to “20 + 20”

] Subtraction operator: “0

− 0” to “20 −20”;answersare

positiveintegersand0.

> Multiplication operator: “1

× 0” or “0 × 1” to “12 × 12”

) Division operator: “0

÷ 1” to “144 ÷12”;answersare

positiveintegersfrom1to12and0,dividendsofupto

144,anddivisorsofupto12.

+]>) Mixed operators:Questionswithinalltheaboveranges

aredisplayed.

ERRORS AND CALCULATION RANGES

Errors

Anerrorwilloccurifanoperationexceedsthecalculationranges,

orifamathematicallyillegaloperationisattempted.Whenanerror

occurs,pressingl or r automatically moves the cursor

backtotheplaceintheequationwheretheerroroccurred.Editthe

equationorpressj to clear the equation.

Error codes and error types

ERROR01:Syntaxerror

• Anattemptwasmadetoperformaninvalidoperation.

Ex.2+ & 5 =

ERROR 02: Calculation error

• Theabsolutevalueofanintermediateornalcalculationresult

equalsorexceeds10

100

.

• Anattemptwasmadetodividebyzero(oranintermediate

calculationresultedinzero).

•

Thecalculationrangeswereexceededwhileperformingcalculations.

• 0oranegativenumberwasenteredasastepvalueinTABLE

mode.Theabsolutevalueofastartingvalueorastepvalue

equalsorexceeds10

100

inTABLEmode.

•

Whenthenumbertobefactoredintoprimesisgreaterthan2and

otherthana10-digitpositiveinteger,orwhentheresultofprime

factorizationisanegativenumber,decimal,fraction,

r

, or π.

ERROR03:Nestingerror

•

Theavailablenumberofbufferswasexceeded.(Thereare10buffers

for numeric values and 64 buffers for calculation instructions).

ERROR 04: Data over

• Dataitemsexceeded100inSTATmode.

Alert Messages

Cannot delete!

• TheselecteditemcannotbedeletedbypressingN or @

yintheWriteVieweditor.

Ex.* 5 r A l N

Inthisexample,deletetheexponentbeforeattemptingtodelete

theparentheses.

Cannot call!

• Thefunctionoroperationstoredindenablememory(D1toD3)

cannot be called.

Ex.Anattemptwasmadetorecallastatisticalvariablefrom

withinNORMALmode.

Buffer full!

• Theequation(includinganycalculationendinginstructions)

exceededitsmaximuminputbuffer(159charactersinthe

WriteVieweditoror161charactersintheLineeditor).An

equationmaynotexceeditsmaximuminputbuffer.

Calculation Ranges

24

•

Within the ranges specified, this calculator is accurate to ±1

of the 10th digit of the mantissa. However, a calculation error

increases in continuous calculations due to accumulation of

each calculation error. (This is the same for

y

x

,

x

r

, n!, e

x

, ln,

etc., where continuous calculations are performed internally.)

Additionally, a calculation error will accumulate and become larger

in the vicinity of inflection points and singular points of functions

.

• Calculationranges

±10

−

99

to ±9.999999999 × 10

99

and 0.

Iftheabsolutevalueofanentryoranalorintermediateresult

of a calculation is less than 10

−

99

, the value is considered to be 0

incalculationsandinthedisplay.

Display of results using r (when EXACT is selected)

Calculationresultsmaybedisplayedusingrwhenallofthe

followingconditionsaremet:

• Whenintermediateandnalcalculationresultsaredisplayedin

thefollowingform:

±

a

P

b



e

±

c

P

d



f

• Wheneachcoefcientfallsintothefollowingranges:

1

≤ a < 100; 1 < b < 1,000; 0 ≤ c < 100;

1

≤ d < 1,000; 1 ≤ e < 100; 1 ≤ f < 100

• Whenthenumberoftermsintheintermediateandnal

calculationresultsisoneortwo.

Note: Theresultoftwofractionaltermsthatincluderwillbe

reduced to a common denominator.

BATTERY REPLACEMENT

Notes on Battery Replacement

Improperhandlingofbatteriescancauseelectrolyteleakageor

explosion.Besuretoobservethefollowinghandlingrules:

• Makesurethenewbatteryisthecorrecttype.

•

Wheninstalling,orientthebatteryproperlyasindicatedinthecalculator.

• Thebatteryisfactory-installedbeforeshipment,andmay

beexhaustedbeforeitreachestheservicelifestatedinthe

specications.

Notes on erasure of memory contents

Whenthebatteryisreplaced,thememorycontentsare

erased. Erasure can also occur if the calculator is defective

orwhenitisrepaired.Makeanoteofallimportantmemory

contents in case accidental erasure occurs.

When to Replace the Battery

EL-W531TH:Ifthedisplayhaspoorcontrastevenafteradjusting

thedisplaycontrast,thebatteryrequiresreplacement.

EL-W531TG/W535XG:Ifthedisplayhaspoorcontrastornothing

appearsonthedisplaywhenjispressedindimlighting,even

afteradjustingthedisplaycontrast,itistimetoreplacethebattery.

Cautions

• Fluidfromaleakingbatteryaccidentallyenteringaneyecould

resultinseriousinjury.Shouldthisoccur,washwithclean

waterandimmediatelyconsultadoctor.

• Shoulduidfromaleakingbatterycomeincontactwithyour

skinorclothes,immediatelywashwithcleanwater.

•

Iftheproductisnottobeusedforsometime,toavoiddamageto

theunitfromaleakingbattery,removeitandstoreinasafeplace.

• Donotleaveanexhaustedbatteryinsidetheproduct.

• Keepbatteriesoutofthereachofchildren.

• Anexhaustedbatteryleftinthecalculatormayleakand

damage the calculator.

• Explosionriskmaybecausedbyincorrecthandling.

• Donotthrowbatteriesintoareastheymayexplode.

Replacement Procedure

1.Turnthepoweroffbypressing@ o.

2.Removetwoscrews.(Fig.1)

3.Liftthebatterycovertoremove.

4. EL-W531TG/W535XG:Removetheusedbatterybypryingit

outwithaball-pointpenorothersimilarpointeddevice.(Fig.2)

EL-W531TH: Remove the used battery.

5. EL-W531TG/W535XG:Installonenewbattery.Makesurethe

“

+”sideisfacingup.

EL-W531TH:Installonenewbattery.Firstinsertthe“

−” side

towardthespring.(Fig.3)

6.Replacethecoverandscrews.

7.PresstheRESETswitch(ontheback)withthetipofa

ball-pointpenorsimilarobject.

8.Adjustthedisplaycontrast.See“Adjustingthedisplay

contrast”.Andthenpressj.

• Makesurethatthedisplayappearsasshownbelow.Ifthe

displaydoesnotappearasshown,removethebattery,reinstall

it,andcheckthedisplayonceagain.

Fig. 1 Fig. 2 Fig.3

Automatic Power Off Function

Thiscalculatorwillturnitselfofftosavebatterypowerifnokeyis

pressedforapproximately10minutes.

SPECIFICATIONS

Display:

96×32dotmatrixliquidcrystaldisplay

Displayofcalculationresults:

Mantissa: 10 digits

 Exponent:2digits

Internal calculations: Mantissasofupto14digits

Pendingoperations: 64 calculations 10 numeric values

Powersource: EL-W531TG/W535XG

Built-in solar cells

1.5V

…—

(DC):Backupbattery

(Alkalinebattery(LR44orequivalent)× 1)

EL-W531TH

1.5V

…—

(DC): Heavy duty manganese

battery(sizeAAAorR03)

× 1

Operatingtime:

(varies according to

use and other factors)

EL-W531TG/W535XG

Approx.3,000hourswhencontinuously

displaying55555at25°C(77°F),using

thealkalinebatteryonly

EL-W531TH

Approx.17,000hourswhencontinuously

displaying55555at25°C(77°F)

Operatingtemperature:

0°C–40°C(32°F–104°F)

Externaldimensions:

80mm(W)

× 166 mm (D) × 15 mm (H)

3-5/32”(W)

×6-17/32”(D)×19/32”(H)

Weight: EL-W531TG/W535XG

Approx.108g(0.24lb)(includingbattery)

EL-W531TH

Approx.113g(0.25lb)(includingbattery)

Accessories:

Battery

×1(installed),operationmanual,

and hard case

FOR MORE INFORMATION

ABOUT SCIENTIFIC CALCULATORS

VisitourWebsite.

http://sharp-world.com/calculator/

EL-W531TG

EL-W531TH

EL-W535XG

SCIENTIFIC CALCULATOR

MODEL

ENGLISH

OPERATION MANUAL

Degree

Minute

Second