Ativa AT-30S User manual

3AFETY0RECAUTIONS
"E SURE TO READ THE FOLLOWING SAFETY PRECAUTIONS BEFORE USING
THISCALCULATOR+EEPTHISMANUALHANDYFORLATERREFERENCE
"ATTERIES
s !FTER REMOVING THE BATTERIES FROM THE CALCULATOR PUT THEM IN
A SAFE PLACE WHERE THERE IS NO DANGER OF THEM GETTING INTO
THEHANDSOFSMALLCHILDRENANDACCIDENTLYSWALLOWED
s +EEP BATTERIES OUT OF THE REACH OF CHILDREN )F ACCIDENTALLY
SWALLOWEDCONSULTWITHAPHYSICIANIMMEDIATELY
s .EVER CHARGE BATTERIES TRY TO TAKE BATTERIES APART OR ALLOW
BATTERIES TO BECOME SHORTED .EVER EXPOSE BATTERIES TO
DIRECTHEATORDISPOSEOFTHEMBYINCINERATION
s -ISUSE OF BATTERIES CAN CAUSE THEM TO LEAK ACID THAT CAN
CAUSE DAMAGE TO NEARBY ITEMS AND CREATES THE POSSIBILITY OF
FIREANDPERSONALINJURY
s !LWAYS MAKE SURE THAT A BATTERYgS POSITIVE  AND NEGATIVE
n SIDES ARE FACING CORRECTLY WHEN YOU LOAD IT INTO THE
CALCULATOR
s 2EMOVE THE BATTERIES IF YOU DO NOT PLAN TO USE THE CALCULATOR
FORALONGTIME
s 5SE ONLY THE TYPE OF BATTERIES SPECIFIED FOR THIS CALCULATOR IN
THISMANUAL
s $IM FIGURES ON THE DISPLAY OF THE CALCULATOR INDICATE THAT
BATTERY POWER IS LOW #ONTINUED USE OF THE CALCULATOR WHEN
THE BATTERY IS LOW CAN RESULT IN IMPROPER OPERATION 2EPLACE
THE BATTERY AS SOON AS POSSIBLE WHEN DISPLAY FIGURES BECOME
DIM
$ISPOSINGOFTHE#ALCULATOR
s .EVER DISPOSE OF THE CALCULATOR BY BURNING IT $OING SO CAN
CAUSE CERTAIN COMPONENTS TO SUDDENLY BURST CREATING THE
DANGEROFFIREANDPERSONALINJURY
s 4HE DISPLAYS AND ILLUSTRATIONS SUCH AS KEY MARKINGS SHOWN
IN THIS /WNERgS -ANUAL ARE FOR ILLUSTRATIVE PURPOSES ONLY AND
MAYDIFFERSOMEWHATFROMTHEACTUALITEMSTHEYREPRESENT
s 4HE CONTENTS OF THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT
NOTICE
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(ANDLING0RECAUTIONS
s "E SURE TO PRESS THE /. KEY BEFORE USING THE CALCULATOR FOR
THEFIRSTTIME
s %VEN IF THE CALCULATOR IS OPERATING NORMALLY REPLACE THE
BATTERY AT LEAST ONCE EVERY THREE YEARS $EAD BATTERY CAN
LEAK CAUSING DAMAGE TO AND MALFUNCTION OF THE CALCULATOR
.EVERLEAVETHEDEADBATTERYINTHECALCULATOR
s 4HE BATTERY THAT COMES WITH THIS UNIT DISCHARGES SLIGHTLY
DURING SHIPMENT AND STORAGE "ECAUSE  IT MAY REQUIRE
REPLACEMENTSOONERTHANTHENORMALEXPECTEDBATTERYLIFE
s ,OW BATTERY POWER CAN CAUSE MEMORY CONTENTS TO BECOME
CORRUPTED OR LOST COMPLETELY !LWAYS KEEP WRITTEN RECORDS OF
ALLIMPORTANTDATA
s !VOID USE AND STORAGE IN AREAS SUBJECTED TO TEMPERATURE
EXTREMES 6ERY LOW TEMPERATURES CAN CAUSE SLOW DISPLAY
RESPONSE TOTAL FAILURE OF THE DISPLAY AND SHORTENING OF
BATTERY LIFE !LSO AVOID LEAVING THE CALCULATOR IN DIRECT
SUNLIGHT WINDOW NEAR A HEATER OR ANYWHERE ELSE IT
MIGHT BECOME EXPOSED TO VERY HIGH TEMPERATURES (EAT CAN
CAUSE DISCOLORATION OR DEFORMATION OF THE CALCULATORgS CASE
OINTERNALCIRCUITRY
s !VOID USE AND STORAGE IN AREAS SUBJECTED TO LARGE AMOUNTS OF
HUMIDITY AND DUST 4AKE CARE NEVER TO LEAVE THE CALCULATOR
WHERE IT MIGHT B BY WATER OR EXPOSED TO LARGE
AMOUNTS OF HUMIDITY OR DUST 3UCH ELEMENTS CAN DAMAGE
INTERNALCIRCUITRY
s .EVER DROP THE CALCULATOR OR OTHERWISE SUBJECT IT TO STRONG
IMPACT
s .EVER TWIST OR BEND THE CALCULATOR !VOID CARRYING THE
CALCULATOR IN THE POCKET OF YOUR TROUSERS OR OTHER TIGHT
FITTING CLOTHING WHERE IT MIGHT BE SUBJECTED TO TWISTING OR
BENDING
s.EVERTRYTOTAKETHECALCULATORAPART
s .EVER PRESS THE KEYS OF THE CALCULATOR WITH A BALLPOINT PEN OR
OTHERPOINTEDOBJECT
s 5SE A SOFT DRY CLOTH TO CLEAN THE EXTERIOR OF THE UNIT )F THE
CALCULATOR BECOMES VERY DIRTY WIPE IT OFF WITH A CLOTH
MOISTENED IN A WEAK SOLUTION OF WATER AND A AL
HOUSEHOLD DETERGENT 7RING OUT ALL EXCESS MOISTURE BEFORE
WIPING THE CALCULATOR .EVER USE THINNER BENZINE OR OTHER
VOLATILE AGENTS TO CLEAN THE CALCULATOR $OING SO CAN REMOVE
PRINTEDMARKINGSANDDAMAGETHECASE
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4WOLINES$ISPLAY
9OU CAN SIMULTANEOUSLY CHECK THE CALCULATION FORMULA AND ITS
ANSWER 4HE FIRST LINE DISPLAYS THE CALCULATION FORMULA 4HE
SECONDLINEDISPLAYSTHEANSWER
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"EFORE3TARTING#ALCULATIONS
-ODES
"EFORE STARTING A CALCULATION YOU MUST FIRST ENTER THE CORRECT
MODEASINDICATEDINTHETABLEBELOW
s 0RESSING THE ;-/$%= KEY MORE THAN ONCE DISPLAYS ADDITIONAL
SETUP SCREENS 3ETUP SCREENS ARE DESCRIBED IN THE SECTIONS OF
THIS MANUAL WHERE THEY ARE ACTUALLY USED TO CHANGE THE
CALCULATORSETUP
.OTE
s 4O RETURN THE CALCULATION MODE AND SETUP TO THE INITIAL
DEFAULTSSHOWNBELOWPRESS ;3()&4=;#,2=;=;=
#ALCULATION-ODE #/-0
!NGLE5NIT $EG
%XPONENTIAL$ISPLAY&ORMAT .ORM
&RACTION$ISPLAY&ORMAT A BC
$ECIMAL0OINT#HARACTER $OT
s-ODEINDICATORSAPPEARINTHEUPPERPARTOFTHEDISPLAY
s "E SURE TO CHECK THE CURRENT CALCULATION MODE 3$ 2%'
#/-0 AND ANGLE UNIT SETTING $EG 2AD 'RA BEFORE
BEGINNINGACALCULATION
)NPUT#APACITY
s 4HE MEMORY AREA USED FOR CALCULATION INPUT CAN HOLD 
STEPS /NE STEP IS TAKEN UP EACH TIME YOU PRESS A NUMBER
KEY OR ARITHMETIC OPERATOR KEY      ! ;3()&4= OR
;!,0(!= KEY OPERATION DOES NOT TAKE UP A STEPSO INPUTTING
;3()&4=;N0R=FOREXAMPLETAKESUPONLYONESTEP
s 9OU CAN INPUT UP TO  STEPS FOR A SINGLE CALCULATION
7HENEVER YOU INPUT THE RD STEP OF ANY CALCULATION THE
CURSOR CHANGES FROM ? TO J TO LET YOU KNOW MEMORY IS
RUNNING LOW )F YOU NEED TO INPUT MORE THAN  STEPS YOU
SHOULDDIVIDEYOURCALCULATIONINTOTWOORMOREPARTS
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4OPERFORMTHIS 0ERFORMTHISKEY 4OENTER
TYPEOFCALCULATION OPERATION THISMODE
"ASICARITHIMETIC
CALCULATIONS
3TANDARDDEVIATION
2EGRESSIONCALCULATIONS
; -ODE =;=
;
-ODE =;=
;
-ODE =;=
#/-0
3$
2%'
s 0RESSING THE ;!NS= KEY RECALLS THE LAST RESULT OBTAINED WHICH
YOU CAN USE IN A SUBSEQUENT CALCULATION 3EE !NSWER
-EMORYFORMOREINFORMATIONABOUTUSINGTHE;!NS=KEY
-AKING#ORRECTIONS$URING)NPUT
s5SE;=AND ;=TO MOVE THE CURSOR TO THE LOCATION YOU
WANT
s 0RESS ;$%,= TO DELETE THE NUMBER OR FUNCTION AT THE CURRENT
CURSORPOSITION
s 0RESS ;3()&4= ;).3= TO CHANGE TO AN INSERT CURSOR  
)NPUTTING SOMETHING WHILE THE INSERT CURSOR IS ON THE DISPLAY
INSERTSTHEINPUTATTHEINSERTCURSORPOSITION
s 0RESSING ;3()&4= ;).3=OR;= RETURNS TO THE NORMAL CURSOR
FROMTHEINSERTCURSOR
2EPLAY&UNCTION
s %VERY TIME YOU PERFORM A CALCULATION THE 2EPLAY &UNCTION
STORES THE CALCULATION FORMULA AND ITS RESULT IN REPLAY
MEMORY 0RESSING THE ;=KEY DISPLAYS THE FORMULA AND
RESULT OF THE CALCULATION YOU LAST PERFORMED 0RESSING ;=
AGAIN BACK STEPS SEQUENTIALLY NEW TO OLD THROUGH PAST
CALCULATIONS
s 0RESSING THE ;=OR ;=KEY WHILE A REPLAY MEMORY
CALCULATIONISONTHEDISPLAYCHANGESTOTHEEDITINGSCREEN
s 0RESSING THE ;=OR ;=KEY IMMEDIATELY AFTER YOU FINISH A
CALCULATIONDISPLAYSTHEEDITINGSCREENFORTHATCALCULATION
s 0RESSING ;!#= DOES NOT CLEAR 2EPLAY MEMORY SO YOU CAN
RECALLTHELASTCALCULATIONEVENAFTERYOUPRESS ;!#=
s 2EPLAY MEMORY CAPACITY IS  BYTES FOR STORAGE OF BOTH
EXPRESSIONSANDRESULTS
s2EPLAYMEMORYISCLEAREDBYANYOFTHEFOLLOWINGACTIONS
7HENYOUPRESSTHE;/.=KEY
7HEN YOU INITIALIZE MODES AND SETTINGS BY PRESSING ;3()&4=
;#,2=;=;=
7HENYOUCHANGEFROMONECALCULATIONMODETOANOTHER
7HENYOUTURNOFFTHECALCULATOR
%RROR,OCATOR
s 0RESSING ;=OR ;=AFTERANERROROCCURSDISPLAYSTHE
CALCULATION WITH THE CURSOR POSITIONED AT THE LOCATION WHERE
THEERROROCCURED
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-ULTISTATEMENTS
! MULTISTATEMENT IS AN EXPRESSION THAT IS MADE UP OF TWO OR
MORESMALLEREXPRESSIONSWHICHAREJOINEDUSINGACOLON ;=
%XAMPLE ANDTHENMULTIPLYTHERESULTBY
; =;!,0(!=;=;!NS=; =;=
;=
%XPONENTIAL$ISPLAY&ORMATS
4HIS CALCULATOR CAN DISPLAY UP TO  DIGITS ,ARGER VALUES ARE
AUTOMATICALLY DISPLAYED USING EXPONENTIAL NOTATION )N THE
CASE OF DECIMAL VALUES YOU CAN SELECT BETWEEN TWO FORMATS
THATDETERMINEATWHATPOINTEXPONENTIALNOTATIONISUSED
s 4O CHANGE THE EXPONENTIAL DISPLAY FORMAT PRESS THE ;-/$%=
KEY A NUMBER OF TIMES UNTIL YOU REACH THE EXPONENTIAL
DISPLAYFORMATSETUPSCREENSHOWNBELOW
s 0RESS ;= /N THE FORMAT SELECTION SCREEN THAT APPEARS PRESS
;=TOSELECT.ORMOR;=FOR.ORM
s.ORM
7ITH .ORM  EXPONENTIAL NOTATION IS AUTOMATICALLY USED FOR
INTEGER VALUES WITH MORE THAN  DIGITS AND DECIMAL VALUES
WITHMORETHANTWODECIMALPLACES
s.ORM
7ITH .ORM  EXPONENTIAL NOTATION IS AUTOMATICALLY USED FOR
INTEGER VALUES WITH MORE THAN  DIGITS AND DECIMAL VALUES
WITHMORETHANNINEDECIMALPLACES
s !LL OF THE EXAMPLES IN THIS MANUAL SHOW CALCULATION RESULTS
USINGTHE.ORMFORMAT
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 
Ejtq
!NSX 
&IX3CI.ORM

$ECIMAL0OINTAND3EPARATOR3YMBOLS
9OU CAN USE THE DISPLAY SETUP $ISP SCREEN TO SPECIFY THE
SYMBOLSYOUWANTFORTHEDECIMALPOINTANDDIGITSEPARATOR
s 4O CHANGE THE DECIMAL POINT AND SEPARATOR SYMBOL SETTING
PRESS THE ;-/$%= KEY A NUMBER OF TIMES UNTIL YOU REACH THE
SETUPSCREENSHOWNBELOW
s$ISPLAYTHESELECTIONSCREEN ;=;=
s 0RESS THE NUMBER KEY ;= OR ;= THAT CORRESPONDS TO THE
SETTINGYOUWANTTOUSE
;=DOT 0ERIODDECIMALPOINTCOMMASEPARATOR
;=COMMA #OMMADECIMALPOINTPERIODSEPARATOR
3TACKS
4HIS CALCULATOR USES MEMORY AREAS CALLED STACKS TO
TEMPORARILY STORE VALUES NUMERIC STACK AND COMMANDS
COMMAND STACK ACCORDING TO THEIR PRECEDENCE DURING
CALCULATIONS 4HE NUMERIC STACK HAS  LEVELS AND THE
COMMAND STACK HAS  LEVELS ! STACK ERROR 3TACK %22/2
OCCURS WHENEVER YOU TRY TO PERFORM A CALCULATION THAT IS SO
COMPLEXTHATTHECAPACITYOFASTACKISEXCEEDED
s #ALCULATIONS ARE PERFORMED IN SEQUENCE ACCORDING TO
#ALCULATION 0RIORITY 3EQUENCE #OMMANDS AND VALUES ARE
DELETEDFROMTHESTACKASTHECALCULATIONISPERFORMED
/VERFLOWAND%RRORS
)F THE OPERATIONAL RANGE OF THE UNIT IS EXCEEDED OR INCORRECT
INPUTS ARE MADE AN ERROR MESSAGE WILL APPEAR ON THE DISPLAY
AND SUBSEQUENT OPERATION WILL BE IMPOSSIBLE 4HIS IS CARRIED
OUT BY THE ERROR CHECK FUNCTION 4HE FOLLOWING OPERATIONS WILL
RESULTINERRORS
 4HE ANSWER WHETHER INTERMEDIATE OR FINAL OR ANY VALUE IN
MEMORYEXCEEDSTHEVALUEOFp 
 !N ATTEMPT IS MADE TO PERFORM FUNCTION CALCULATIONS THAT
EXCEEDTHEINPUTRANGE
 )MPROPER OPERATION DURING STATISTICAL CALCULATIONS EG
ATTEMPTINGTOOBTAINXORX NWITHOUTDATAINPUT
 4HE CAPACITY OF THE NUMERIC VALUE STACK OR THE COMMAND
STACKISEXCEEDED
)NPUTERRORSAREMADEEG 
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$ISP

CASETOCASE -ATH%22/2
CASE 3TACK%22/2
CASE 3YNTAX%22/2
4HE CALCULATOR IS LOCKED UP WHILE AN ERROR MESSAGE IS ON THE
DISPLAY 0RESS ;!#= TO CLEAR THE ERROR OR PRESS ;=OR ;=TO
DISPLAY THE CALCULATION AND CORRECT THE PROBLEM 3EE %RROR
,OCATORFORDETAILS
)NTERNALDIGITS
&OR A SINGLE CALCULATION CALCULATION ERRORS IS p AT THE TH
DIGIT )N THE CASE OF EXPONENTIAL DISPLAY CALCULATION ERROR IS p
AT THE LAST SIGNIFICANT DIGIT %RRORS ARE CUMULATIVE IN THE CASE OF
CONSECUTIVE CALCULATIONS WHICH CAN ALSO CAUSE THEM TO
BECOME LARGE 4HIS IS ALSO TRUE OF INTERNAL CONSECUTIVE
CALCULATIONS THAT ARE PERFORMED IN THE CASE OF
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XYX X 
N0RN#RETC
)N THE VICINITY OF A FUNCTIONgS SINGULAR POINT AND POINT OF
INFLECTIONERRORSARECUMULATIVEANDMAYBECOMELARGE
#ALCULATION0RIORITY3EQUENCE
#ALCULATIONS ARE PERFORMED IN THE FOLLOWING ORDER OF
PRECEDENCE

#OORDINATETRANSFORMATION0OLXY2ECR 
4YPE!FUNCTIONS
7ITH THESE FUNCTIONS THE VALUE IS ENTERED AND THEN THE
FUNCTIONKEYISPRESSEDX

X
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X
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X ggg
XXXY
ANGLEUNITCONVERSIONS
0OWERSANDROOTS
}
XY X
&RACTIONSABC
 !BBREVIATED MULTIPLICATION FORMAT IN FRONT OF PMEMORY
NAMEORVARIABLENAMESUCHASP! P!ETC
4YPE"FUNCTIONS
7ITH THESE FUNCTIONS THE FUNCTION KEY IS PRESSED AND THEN
THEVALUEISENTERED
 LOG LN EX
X SIN COS TAN SINnCOS n TANn SINH COSH
TANHSINHnCOSHnTANHnn
 !BBREVIATED MULTIPLICATION FORMAT IN FRONT OF 4YPE "
FUNCTIONS!LOGETC
0ERMUTATIONCOMBINATIONN0RN#R
 
 
nn
s /PERATIONS OF THE SAME PRECEDENCE ARE PERFORMED FROM
RIGHTTOLEFTEXLN @EX[LN]
s/THEROPERATIONSAREPERFORMEDFROMLEFTTORIGHT
s/PERATIONSENCLOSEDINPARENTHESESAREPERFORMEDFIRST
)NITIALIZINGTHE#ALCULATOR
s 0ERFORM THE FOLLOWING KEY OPERATION WHEN YOU WANT TO
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MEMORYANDVARIABLES
;3()&4=;#,2=;=;=
"ASIC#ALCULATIONS
!RITHMETIC#ALCULATIONS
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s .EGATIVE VALUES INSIDE OF CALCULATIONS MUST BE ENCLOSED
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PARENTHESES
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
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INDIGITSFORAMANTISSAANDTHERESULTIS
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HOURS MINUTES AND SECONDS AND CONVERT BETWEEN
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-ODE =;=$EG
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s $ATA VALUES YOU REGISTER ARE NORMALLY STORED IN CALCULATOR
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4HEREGRESSIONFORMULAFORLINEARREGRESSIONISY!"y
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4EMPERATUREANDLENGTH
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# MM
# MM
# MM
# MM
5SINGTHISTABLETHE
REGRESSIONFORMULAAND
CORRELATIONCOEFFICIENT
CANBEOBTAINED"ASED
ONTHECOEFFICIENT
FORMULATHELENGTHOF
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ATMMCANBE
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sANDCOVARIANCECAN
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;
-/$%
=;=;=
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;=;$4=
;=;$4=
;=;$4=
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;=;$4=
;
3()&4 =; 36!2 =;=;=;=;=
 2EGRESSIONCOEFFICIENT !
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2EGRESSIONCOEFFICIENT"
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#ORRELATIONCOEFFICIENT s
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;=;=
,ENGTHAT#
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;=;=;=
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MM
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;=
#RITICALCOEFFICIENT
;=; 3()&4 =; 335- =;=;=; =
;
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;
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3()&4 =; 335- =
;=; =;=;=
#OVARIANCE
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$ATA)NPUT0RECAUTIONS
s;$4=;$4=INPUTSTHESAMEDATATWICE
s 9OU CAN ALSO INPUT MULTIPLE ENTRIES OF THE SAME DATA USING
;3()&4= ;= 4O INPUT THE DATA  AND  FIVE TIMES FOR
EXAMPLEPRESS ;=;3()&4=;=;$4=
s 4HE ABOVE RESULTS CAN BE OBTAINED IN ANY ORDER AND NOT
NECESSARILYTHATSHOWNABOVE
s 0RECAUTIONS WHEN EDITING DATA INPUT FOR STANDARD DEVIATION
ALSOAPPLYFORREGRESSIONCALCULATIONS
4OREPLACETHEBATTERY
s 2EMOVE THE TWO SCREWS THAT HOLD THE BACK COVER IN PLACE AND
THENREMOVETHEBACKCOVER
s2EMOVETHEOLDBATTERY
s 7IPE OFF THE SIDE OF THE NEW BATTERY WITH A DRY SOFT CLOTH
,OADITINTOTHEUNITWITHTHEPOSITIVESIDEFACINGUP
s
2EPLACETHEBATTERYCOVERANDSECUREITINPLACEWITHTHETWOSCREWS
s0
s"ATTERY#ONTAINS-ERCURY$ONOT0UTIN4RASH2ECYCLEOR-ANAGESAS
(AZARDOUS7ASTE$ONOTDISPOSEOFBATTERIESINFIREBATTERIESMAY
EXPLODEORLEAK
RESS ;/.=TOTURNPOWERON
!UTO0OWER/FF
#ALCULATOR POWER AUTOMATICALLY TURNS OFF IF YOU DO NOT PERFORM
ANY OPERATION FOR ABOUT SIX MINUTES7HEN THIS HAPPENS PRESS
;/.=TOTURNPOWERBACKON
3PECIFICATIONS
0OW ERSUPPLYSINGLELR1130X3MM
BATTERY3OLARBATTERYINCLUDED

/PERATINGTEMPERATURE^#&^&
nn
%XAMPLE /PERATION $ISPLAY
yj zj
 
 
 
 
 
4HROUGHQUADRATIC
REGRESSIONOFTHEABOVE
DATATHEREGRESSION
FORMULAANDCORRELATION
COEFFICIENTAREOBTAINED
&URTHERMORETHE
REGRESSIONFORMULAIS
USEDTOOBTAINTHE
RESPECTIVEESTIMATED
VALUESOFzANDyWHEN
yjANDzj
;
-/$%
=;=;=;=
1UADRATICREGRESSION
; 3()&4 =;#,2=;=;= 3TATCLEAR
;=;$4=
;=;$4=
;=;$4=
;=;$4=
;=;$4=
;
3()&4 =; 36!2 =;=;=;=;=

2EGRESSIONCOEFFICIENT
!
; 3()&4 =; 36!2 =;=;=;=;=
2EGRESSIONCOEFFICIENT"
; 3()&4 =; 36!2 =;=;=;=;=
2EGRESSIONCOEFFICIENT d
; 36!2 =;=;=;=;=;=
zWHENyj
 ; 36!2 =;=;=;=;=;=
yWHENzj
 ; 36!2 =;=;=;=;=;=
yWHENzj
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nn
n
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