Ativa AT-30S manual ⁄ y , ⁄ z , ⁄ y , ⁄ y 

$EGREES -INUTES 3ECONDS #ALCULATIONS

9OU CAN PERFORM SEXAGESIMAL CALCULATIONS USING DEGREES HOURS  MINUTES AND SECONDS AND CONVERT BETWEEN SEXAGESIMALEANDIDECIMAL VALUES

%XAMPLE	/PERATION		$ISPLAY
4OOEXPRESSSDEGREES	;Žg =;=		ŽŽ
IN DEGMINSEC
4OOPERFORM THE CALCULATION	;Žg;=;Žg=;Žg;=;	=
Žg 	;=		ŽŽ

&)8 3#) 2.$

!S THE NUMBER OF DECIMAL PLACES IS SPECIFIED THE INTERMEDIATE RESULT WILL BE AUTOMATICALLY ROUNDED TO THE SPECIFIED DECIMAL PLACES (OWEVER THE STORED INTERMEDIATE RESULT IS NOT ROUNDED )N ORDER TO MATCH THE DISPLAYED VALUE AND THE STORED VALUE ;3()&4==;2.$= CAN BENINPUT

s 4O CHANGE THE SETTINGS FOR THE NUMBER OF DECIMAL PLACES THE NUMBER OF SIGNIFICANT DIGITS OR THE EXPONENTIAL DISPLAY FORMAT PRESS THE ;-/$%=KEY A NUMBER OF TIMES UNTIL YOU REACH THE SETUP SCREENESHOWN BELOW

&IXI3CI .ORM   

s 0RESS THE NUMBER KEY ;= ;= OR ;= THAT CORRESPONDS TO THE SETUPTITEM YOU WANTWTOOCHANGE

;= &IX  .UMBER.OF DECIMAL PLACES

;= 3CI C.UMBER OF.SIGNIFICANT DIGITS

;= .ORM  %XPONENTIAL DISPLAYYFORMAT

		$ISPLAY
%XAMPLE	/PERATION	,OWER
    	; = ; ==;=	
ROUNDED TOO DECIMAL	;-ODE=;=&IX X;=	
PLACES
	; = ;=	
	4HE INTERMEDIATEERESULTUIS AUTOMATICALLY
	ROUNDED TOOTHETSPECIFIEDPTHREE DECIMAL PLACES
ROUND THE STORED	;3()&4==;2.$=	
INTERMEDIATEERESULTUTO
THEHSPECIFIEDETHREE
DECIMALIPLACES
	; =	!NS
		UPPER DISPLAY
	 ;=	
#ANCEL SPECIFICATION BY	;-ODE=;=.ORM ;=	
SPECIFYING .ORM AGAIN
	nn n

								$ISPLAY
	%XAMPLE			/PERATION				,OWER
	SINIŽg			;-ODE=;=$EG
				;SIN=I ;Ž gg= =;Ž gg=
				 ;Ž gg=;=				
	COS Π RAD D 			;-ODE=;=2AD
				;COS=;= ;3()&4=;Π=; =
				; = ;=				
	TANAn GRAD			;-ODE=;='RAD
	n
				;TAN=A;n =  ;=				n
	SINŽ COSŽ			;-ODE=;=$EG
				;SIN= N;COS=S ;=				
	SINn   			;3()&4=;SINn==;=				
	COSn •			;-ODE=;=2AD
	RAD			;3()&4=;COSn=;=;•= ; =
	Π RAD			; =;=				
				;	=;3()&4=;Π=;=			
	TANn 			;-ODE=;=$EG
	Ž			;3()&4=;TANn=;=				
	Žg			;3()&4==;κŽg =				ŽŽ
	 SINn		COSn	;		==;=;;3()&4==;SINn=
	Žg			;	==;3()&4==;COSn==; =			ŽŽ
				;=;3()&4==;κŽg =
(YPERBOLIC)NVERSE (YPERBOLICP&UNCTIONS
								$ISPLAY
	%XAMPLE			/PERATION				,OWER
	SINH 			;HYP=;SIN=  ;=				
	COSH			;HYP=;COS=S ;=				
	TANH 			;HYP=;TAN=  ;=				
	COSH	SINH		;HYP=;COS=S ;			=;HYP=	
				;SIN=I=;=
	SINHn 			;HYP=;3()&4=;SINn== ;=				
	COSHn 			;HYP=;3()&4=;COSn=;= 
				; == ; =;=				
	XX TANHn   			;HYP=;3()&4=;TANn=
				; =;=				
	SINHn 	COSHn		;HYP=;3()&4=;SINn=; =
				;HYP=;3()&4=;COSn=;=				
	SINHn  TANHn			;HYP=;3()&4=;SINn=;=; =
				; =;		=;HYP=;3()&4=;TANn=
				;=;		=; =;=		

nn n

%XAMPLE	/PERATION		$ISPLAY
$EFINEIDEGREE FIRST	;-ODE=;=$EG
#HANGE GRADIANITO	;3()&4=;$2'	=;=;=	R
DEGREE			
4OOPERFORM THE FOLLOWING	;3()&4=;$2'	=;=;=
CALCULATIONL	; =;3()&4=;;$2' =
 RADIANSSGRADIENTS	;=;=		R G
4HE ANSWER IS EXPRESSED			
IN DEGREE

#OORDINATE #ONVERSION [0OLy z  2ECs ]

s #ALCULATION RESULTS ARE AUTOMATICALLY ASSIGNED TO VARIABLES % ANDN&

			$ISPLAY
%XAMPLE		/PERATION	,OWER
yAND z WHAT		;-ODE=;=$EG
ARE sAND	Ž	;0OL= ;=; =;=	s
		;2#,=;&=	ŽŽ
y AND zn WHAT		;-ODE=;=2AD
ARE sAND	RAD	;0OL=;=;n=; =;=	s
		;2#,=;&=	n

s 0RESS ;2#,= ;%= TO DISPLAY VALUE OF s OR ;2#,= ;&= TO DISPLAY VALUE OFE

		$ISPLAY
%XAMPLE	/PERATION	,OWER
sAND Ž WHAT	;;-ODE=;=$EG
AREEX AND Y	;3()&4=;2EC=C;=; =;=	y
	;2#,=;&=	z
s AND Π RAD	;-ODE=;=2AD
WHAT AREEX AND Y	;3()&4=;2EC=;=;=; =
	; =;3()&4=;Π=; =; =;=	ny
	;2#,=;&=	z

s 0RESS ;2#,= ;%= TO DISPLAY VALUE OF y OR ;2#,= ;&= TO DISPLAY VALUE OFEz

%NGINEERINGE.OTATION #ALCULATIONS

		$ISPLAY
%XAMPLE	/PERATION	,OWER
M  M	; = ;=	
KM	;%.'=	
G  G	; =;=	
KG	;3()&4==;%.'=	

nn n

s !LWAYS START DATA INPUT WITH ;3()&4= ;#,2= ;= ;= TO CLEAR STATISTICALSMEMORY

ss)NPUTNDATA USING THE KEY SEQUENCEESHOWN BELOW yDATA ;= zDATA ;$4=

s 4HE VALUES PRODUCED BY A REGRESSION CALCULATION DEPEND ON THE VALUES INPUT AND RESULTS CAN BE RECALLED USING THE KEY OPERATIONS SHOWN IN THENTABLEHBELOW

4OORECALLATHIS TYPEPOF VALUE			0ERFORMRTHIS KEYYOPERATION
	⁄y		;3()&4==;335-=;=
	⁄y		;3()&4==;335-=;=
	o		;3()&4==;335-=;=
	⁄z		;3()&4==;335-=; ==;=
	⁄z		;3()&4==;335-=; ==;=
	⁄yz		;3()&4==;335-=; ==;=
	⁄y		;3()&4==;335-=; ==; ==;=
	⁄yz		;3()&4==;335-=; ==; ==;=
	⁄y		;3()&4==;335-=; ==; ==;=
			;3()&4==;36!2=2;=
	y
	yΣN		;3()&4==;36!2=2;=
	yΣNn		;3()&4==;36!2=2;=
			;3()&4==;36!2=2; ==;=
	z
	zΣN		;3()&4==;36!2=2; ==;=
	zΣNn		;3()&4==;36!2=2; ==;=
2EGRESSION COEFFICIENT !			;3()&4==;36!2=2; ==; ==;=
2EGRESSION COEFFICIENT "			;3()&4==;36!2=2; ==; ==;=
2EGRESSION CALCULATION OTHER THANTQUADRATIC REGRESSION
#ORRELATIONTCOEFFICIENT s			;3()&4==;36!2=2; ==; ==;=
		y	;3()&4==;36!2=2; ==; ==; ==;=
		z	;3()&4==;36!2=2; ==; ==; ==;=

s 4HE FOLLOWING TABLE SHOWS THE KEY OPERATIONS YOU SHOULD USE TOORECALLARESULTS INTTHE CASE OFTQUADRATIC REGRESSION

4OORECALLATHIS TYPEPOF VALUE	0ERFORMRTHIS KEYYOPERATION
2EGRESSION COEFFINIENT #	;3()&4==;36!2=2; ==; ==;=
y2	;3()&4==;36!2=2; ==; ==; ==;=
y3	;3()&4==;36!2=2;	==;	==;	==;=
z	;3()&4==;36!2=2;	==;	==;	==;=

s 4HE VALUES IN THE ABOVE TABLES CAN BE USED INSIDE OF EXPRESSIONSITHENSAME WAYYYOU USE VARIABLES

nn n

-EMORYY#ALCULATIONS

!NSWER -EMORY

s 7HENEVER YOU PRESS ;= AFTER INPUTTING VALUES OR AN EXPRESSION THE CALCULATED RESULT AUTOMATICALLY UPDATES !NSWER -EMORYYCONTENTSTBYYSTORINGITHEGRESULT

s )N ADDITION TO ;= !NSWER -EMORY CONTENTS ARE ALSO UPDATED WITH RESULT WHENEVER YOU PRESS ;3()&4= ;= ;-= ;3()&4= ;-n=OR ;3()&4= ;34/= FOLLOWED BY A LETTER ! THROUGH & OR - 8 ORO9 

s 9OU CAN RECALLA!NSWER -EMORYYCONTENTSTBYYPRESSING ;!NS=

s !NSWER -EMORY CAN STORE UP TO  DIGITS FOR THE MANTISSA ANDNTWOODIGITS FOR THE EXPONENT

s !NSWER -EMORY CONTENTS ARE NOT UPDATED IF THE OPERATION PERFORMED BY ANY OF THE ABOVE KEY OPERATIONS RESULT IN AN ERROR

#ONSECUTIVEE#ALCULATIONS

s ! CALCULATION RESULT PRODUCED BY PRESSING ;= CAN BE USED IN THEHNEXTTCALCULATION

s 4HE RESULT OF A CALCULATION CAN ALSO BE USED WITH A

SUBSEQUENT 4YPE ! FUNCTION X X Xn X	}	XY  X•
N0R N#R AND Ž gggg

)NDEPENDENTT-EMORY

s 6ALUES CAN BE INPUT DIRECTLY INTO MEMORY ADDED TO MEMORY OR SUBSTRACTED FROM MEMORY )NDEPENDENT MEMORY IS CONVENIENT FOR CALCULATING CUMULATIVEETOTALS

s )NDEPENDENT MEMORY USES THE SAME MEMORY AREA AS VARIABLE -

s 4OOCLEARLINDEPENDENTNMEMORYY-  INPUT ;=;3()&4==;34/= ;-=

%XAMPLE )NPUT  TOOINDEPENDENTPMEMORY
!#= ;= ;= ;=	?	E
		
;-=		E
		
2ECALL MEMORYYDATA
;!#=	?	E
		
;2#,=#;-=	-	E
		
	nn n
!DD  SUBTRACTT
 ;-=; ;3()&4==;-n=		E
		
2ECALL MEMORYYDATA
;!#=	?	E
		
;2#,=#;-=	-	E
		

6ARIABLES

s 4HERE ARE NINE VARIABLES ! THROUGH & - 8 AND 9  WHICH CAN BE USEDUTOOSTOREEDATA CONSTANTS RESULTS AND OTHER VALUES

s 5SE THE FOLLOWING OPERATION TO DELETE DATA ASSIGNED TO A PARTICULAR VARIABLE ;= ;3()&4= ;34/= ;!= 4HIS OPERATION DELETES THE DATAEASSIGNED TOOVARIABLEA!

s 0ERFORM THE FOLLOWING KEY OPERATION WHEN YOU WANT TO CLEAR THE VALUES ASSIGNED TO ALL OF THE VARIABLES ;3()&4= ;#,2= ;=

;=

3CIENTIFICF&UNCTION #ALCULATIONS

5SE THE ;-/$%=KEY TO ENTER THE #/-0 -ODE WHEN YOU WANT TOOPERFORM BASIC CALCULATIONSA;-/$%= ;= 

s #ERTAIN TYPES OF CALCULATIONS MAY TAKE A LONG TIME TO COMPLETE

s 7AIT FOR THE RESULT TO APPEAR ON THE DISPLAY BEFORE STARTING THEHNEXTTCALCULATION

sΠ  

4RIGONOMETRIC)NVERSE 4RIGONOMETRICM&UNCTIONS

s 4O CHANGE THE DEFAULT ANGLE UNIT DEGREES RADIANS GRADS 

PRESS THE ;-/$%=KEY A NUMBER OF TIMES UNTIL YOU REACH THE ANGLEGUNIT SETUP SCREENESHOWN BELOW

$EGE2AD 'RA   

s 0RESS THE NUMBER KEY ;= ;= OR ;= THAT CORRESPONDS TO THE ANGLEGUNIT YOU WANTWTOOUSE

Ž  Π RADIANS   GRADS

nn n

#OMMONMANDN.ATURAL ,OGARITHMS!NTILOGARITHMS

$ISPLAY

%XAMPLE

/PERATION

,OWER

LOG

;LOG=O ;=

 n



)N  

;)N= =;=



LOG )N

;LOG=

;)N==;=





  

;3()&4=;X== ;=



E  

;3()&4=;EX=;=



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;3()&4=;X=;

=;3()&4=;EX=



;n =;

=;

=;3()&4=;X=

;=



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;=;n =  ; = ;

}

== ;=



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;n =n ;

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3QUAREE2OOTS #UBE 2OOTS 2OOTS

3QUARES #UBES 2ECIPROCALS

&ACTORIALS 2ANDOMD.UMBERS Π

$ISPLAY

%XAMPLE

/PERATION

,OWER

• • 

;•=; =;•=;=



• •n

;3()&4=;•=;

=;3()&4=;•=

n

;=;n =; =;=

n

•

;3()&4=;X•==;=



     

;X=; =;X=; =;X=

; =;X=;=





  

;=;n =; =;X=;=



  

;X=;=



n n

;=;Xn=;

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;3()&4=;X =;=



•    

;3()&4=;•=;=; =; =

; =;=



2ANDOMDNUMBER

;3()&4=;2AN=;=



GENERATIONINUMBERIS

RANDOM

IN THE RANGE OFEFTO



Π  

;3()&4=Π;=



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0ERMUTATION AND #OMBINATION

4OTAL NUMBERNOF PERMUTATIONSFN0RR N N

R

R

4OTAL NUMBERNOF COMBINATIONSAN#RION R N

$ISPLAY

%XAMPLE

/PERATION

,OWER

4AKINGNANYYFOURUOUT OF

;3()&4=;N0R=;=



TEN ITEMSMAND ARRANGING

THEM INMA ROW HOWWMANY

DIFFERENTNARRANGEMENTS

AREEPOSSIBLE

0  

5SING ANYYFOURUNUMBERS

;3()&4=;N0R=;

=; =



FROM  TOO HOWWMANY

;=

FOURUDIGITDEVEN NUMBERS

CANABE FORMEDMIF NONEIOF

THEHFOURUDIGITS CONSIST OF

THEHSAME NUMBER

 OFTHEOTOTAL NUMBER

OF PERMUTATIONSUWILL BE

EVEN

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;N#R=;=



REMOVED FROM A TOTAL

OF  ITEMS HOWWMANY

DIFFERENTNCOMBINATIONS

OF FOURUITEMSMARE

POSSIBLE

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=;N#R=;=



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#

#  

!NGLE 5NIT #ONVERSION

ss0RESS ;3()&4==;$2' = TOODISPLAYYTHETFOLLOWING MENU

$$	2	'
		

s0RESS ;= ;= OR ;= CONVERTS THE DISPLAYED VALUE TO THE CORRESPONDINGNANGLENUNIT

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3TANDARDD$EVIATION

5SE THE ;-/$%=KEY TO ENTER THE 3$ -ODE WHEN YOU WANT TO PERFORM STATISTICAL CALCULATIONS USING STANDARD DEVIATION ;-/$%= ;= 

s !LWAYS START DATA INPUT WITH ;3()&4= ;#,2= ;= ;= TO CLEAR STATISTICALSMEMORYY3CL 

ss)NPUTNDATA USING THE KEY SEQUENCEESHOWN BELOW yDATA ;$4=

s )NPUT DATA IS USED TO CALCULATE VALUES FOR o ⁄y ⁄y y o AND o 2

WHICHIYOU CAN RECALLAUSING THESKEY OPERATIONS NOTED NEARBY

4OORECALLATHIS TYPEPOF VALUE		0ERFORMRTHIS KEYYOPERATION
	⁄y	;3()&4=;335-=;=
	⁄y	;3()&4=;335-=;=
	o	;3()&4=;335-=;=
		;3()&4=;36!2=;=
	y
	Σo	;3()&4=;36!2=;=
	Σo 2	;3()&4=;36!2=;=

%XAMPLE	/PERATION	$ISPLAY
$ATA     	;-/$%==;=;3$3-ODE	
  	;3()&4=;#,2=;=;= 3TATTCLEAR	
	;$4=;$4=;$4=
	;$4=;$4=;$4=;$4=
	;$4=	
7HAT ISTDEVIATIONDOF THE	;3()&4=;335-=;=.UMBERMOF DATA	
UNBIASED VARIANCE AND	;3()&4=;335-=;=3UMOF DATA	
THEHMEAN OFETHENABOVE	;3()&4=;335-=;=	
DATA	3UM OFMSQUAREEOF DATA
	;3()&4=;36!2=;=-EAN	
	;3()&4=;36!2=;=0OPULATIONA3$	
	;3()&4=;36!2=;=3AMPLEM3$	

$ATA )NPUT 0RECAUTIONS

s ;$4==;$4= INPUTSPTHETSAME DATAETWICE

s 9OU CAN ALSO INPUT MULTIPLE ENTRIES OF THE SAME DATA USING ;3()&4= ;= 4O INPUT THE DATA  TEN TIMES FOR EXAMPLE PRESS ;3()&4==;=; ;$4=

s 9OU CAN PERFORM THE ABOVE KEY OPERATIONS IN ANY ORDER AND NOTONECESSARILY THATLSHOWN ABOVE

s 7HILE INPUTTING DATA OR AFTER INPUTTING DATA IS COMPLETE YOU CAN USE THE ; = AND ; = KEYS TO SCROLL THROUGH DATA YOU HAVE INPUT )F YOU INPUT MULTIPLE ENTRIES OF THE SAME DATA USING ;3()&4= ;= TO SPECIFY THE DATA FREQUENCY NUMBER OF DAT ITEMS AS DESCRIBED ABOVE SCROLLING THROUGH DATA SHOWS BOTH THE DATA ITEM AND A SEPARATEESCREENEFOR THE DATAEFREQUENCYY&REQ 

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9OU CAN THEN EDIT THE DISPLAYED DATA IF YOU WANT )NPUT THE NEW VALUE AND THEN PRESS THE ;= KEY TO REPLACE THE OLD VALUE WITH THE NEW ONE

s 0RESSING THE ;$4= KEY INSTEAD OF ;= AFTER CHANGING A VALUE ON THE DISPLAY REGISTERS THE VALUE YOU INPUT AS A NEW DATA ITEM ANDNLEAVES THE OLD VALUE ASEIT IS

s 9OU CAN DELETE A DATA VALUE DISPLAYED USING ; = AND ; = BY PRESSING ;3()&4= ;#,= $ELETING A DATA VALUE CAUSES ALL VALUES FOLLOWING ITGTOOBE SHIFTED UP

s $ATA VALUES YOU REGISTER ARE NORMALLY STORED IN CALCULATOR MEMORY 4HE MESSAGE $ATA &ULL APPEARS AND YOU WILL NOT BE ABLE TO INPUT ANY MORE DATA IF THERE IS NO MEMORY LEFT FOR DATA STORAGE )F THIS HAPPENS PRESS THE ;= KEY TO DISPLAY THE SCREENESHOWN BELOW

%DIT/&&T /%3#

  

0RESS ;= TO EXIT DATA INPUT WITHOUT REGISTERING THE VALUE YOU JUST INPUT

0RESS ;= IF YOU WANT TO REGISTER THE VALUE YOU JUST INPUT WITHOUT SAVING IT IN MEMORY )F YOU DO THIS HOWEVER YOU WILL NOTOBE ABLEETOODISPLAYYOR EDIT ANYYOF THE DATAHYOU HAVEEINPUT

s 4OODELETEEDATA YOU HAVEEJUST INPUT PRESS ;3()&4==;#,=

2EGRESSION #ALCULATIONS

5SE THE ;-/$%=KEY TO ENTER THE 2%' -ODE WHEN YOU WANT TO PERFORMRSTATISTICALTCALCULATIONS USING REGRESSION ;-/$%= ;=  s %NTERING THE 2%' -ODE DISPLAYS SCREENS LIKE THE ONES SHOWN

BELOW

,INI,OG %XP   

0WRW)NV 1UAD   

s 0RESS THE NUMBER KEY ;= ;= OR ;= THAT CORRESPONDS TO THE TYPE OF REGRESSION YOU WANTWTOOUSE

;= ,IN I	,INEAR REGRESSION
;= ,OG 	,OGARITHMICTREGRESSION
;= %XP X	%XPONENTIALEREGRESSION

;=;= 0WR W 0OWER REGRESSION

;=;= )NV  )NVERSE REGRESSION

;==;= 1UAD  1UADRATIC REGRESSION

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,INEAR 2EGRESSION

4HE REGRESSION FORMULA FOR LINEARIREGRESSION IS Y Y! "y

%XAMPLE		/PERATION							$ISPLAY
4EMPERATUREEANDALENGTH		;-/$%=;=;=							
OF A STEELEBAR		,INEARNREGRESSION
4EMP	,ENGTH	;3()&4=;#,2=;=;= 3TATTCLEAR							
Ž#	MM	;=;$4=							
Ž#	MM	;=;$4=							
Ž#	MM	;=;$4=							
Ž#	MM	;=;$4=							
Ž#	MM	;=;$4=							
5SING THIS TABLE THE		;3()&4=;36!2=;				=;	=;=;=		
REGRESSION FORMULA AND		2EGRESSION COEFFICIENT !							
CORRELATIONTCOEFFICIENT		;3()&4=;36!2=;				=;	=;=;=
		2EGRESSION COEFFICIENT "
CANABE OBTAINED "ASED
		;3()&4=;36!2=;				=;	=;=;=		
ON THE COEFFICIENT		#ORRELATIONTCOEFFICIENT s
FORMULA THE LENGTHLOF		;3()&4=;36!2=;					=; =;	=
THEHSTEELEBAR AT Ž#
		;=;=,ENGTHGAT Ž#							
ANDNTHE TEMPERATURE
		;3()&4=;36!2=;					=;	=
AT MMCANBE
		;	=;=;=4EMPMAT MM						
ESTIMATED &URTHERMORE
		;3()&4=;36!2=;				=;	=;=;X=
THEHCRITICAL COEFFICIENT		;=#RITICALTCOEFFICIENT							
s ANDACOVARIANCEECAN
		;=;3()&4=;335-=;					=;=;	=
ALSO BEOCALCULATED		;3()&4=;335-=; =;3()&4=
		;36!2=;=;			=;3()&4=;36!2=
		;	=;=; =;		=;=;3()&4=;335-=
		;=;		=; =;=#OVARIANCE					

,OGARITHMIC %XPONENTIAL 0OWER AND )NVERSE 2EGRESSION

ss5SE THE SAMEEKEY OPERATIONS ASNLINEAR REGRESSION TOORECALL RESULTS FOR THESE TYPES OFSREGRESSION

s 4HE FOLLOWING SHOWS THE REGRESSION FORMULASUFOR EACHETYPEPOF REGRESSION

,OGARITHMICT2EGRESSION	z  !	"s)Ny
%XPONENTIALE2EGRESSION	z  !sf"sy )N z  LN !		"y
0OWER 2EGRESSION	z  !sy" )N z  LN !		""LN y
)NVERSE 2EGRESSION	z  !	"sy

1UADRATICI2EGRESSION

s 4HE REGRESSION FORMULA FOR QUADRATIC REGRESSION IS

z !"y#y

nn n

%XAMPLE		/PERATION				$ISPLAY
yj	zj	;-/$%=;=;	=;=			
		1UADRATIC REGRESSION
		;3()&4=;#,2=;=;= 3TATTCLEAR				
	
		;=;$4=				
	
		;=;$4=				
	
		;=;$4=				
4HROUGH QUADRATIC
		;=;$4=				
REGRESSION OFOTHE ABOVE
DATA THE REGRESSION		;=;$4=				
FORMULAUANDACORRELATION		;3()&4=;36!2=; =; =;=;=				n
COEFFICIENTCAREEOBTAINED		2EGRESSION COEFFICIENT !
&URTHERMORE THE		;3()&4=;36!2=;		=;	=;=;=	
REGRESSION FORMULA IS		2EGRESSION COEFFICIENT "
USED TOOOBTAIN THE		;3()&4=;36!2=;		=;	=;=;=	nn
RESPECTIVEEESTIMATED		2EGRESSION COEFFICIENT d
VALUESUOF z AND y WHEN		;36!2=;	=;	=;	=;=;=	n
yj  ANDzj 		z WHENHyj
		;36!2=;	=;	=;	=;=;=	
		y WHENHzj
		;36!2=;	=;	=;	=;=;=	
		y WHENHzj

$ATA )NPUT 0RECAUTIONS

s ;$4==;$4= INPUTSPTHETSAME DATAETWICE

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 THATLSHOWN ABOVE

s 0RECAUTIONS WHEN EDITING DATA INPUT FOR STANDARD DEVIATION ALSO APPLY FOR REGRESSION CALCULATIONS

4OOREPLACEETHETBATTERY

s 2EMOVE THE TWO SCREWS THAT HOLD THE BACK COVER IN PLACE AND THEN REMOVEETHETBACK COVER

ss2EMOVEETHETOLDEBATTERY

s 7IPE OFF THE SIDE OF THE NEW BATTERY WITH A DRY SOFT CLOTH

,OADAIT INTOOTHETUNIT WITHNTHETPOSITIVE SIDE FACING UP

s 2EPLACEETHETBATTERYYCOVER AND SECUREEIT INTPLACEEWITH THE TWOOSCREWS ss0RESS ;/.= TOOTURN POWER ON

ss"ATTERYT#ONTAINS -ERCURYT$O NOT 0UT INE4RASH 2ECYCLE ORO-ANAGES ASS (AZARDOUSA7ASTE $OSNOT7DISPOSEEOF BATTERIES INTFIREIBATTERIES MAY EXPLODEPOR LEAK

!UTO 0OWER /FF

#ALCULATOR POWER AUTOMATICALLY TURNS OFF IF YOU DO NOT PERFORM ANY OPERATION FOR ABOUT SIX MINUTES 7HEN THIS HAPPENS PRESS ;/.= TOOTURN POWER BACKBON

3PECIFICATIONS

0OWER SUPPLYSINGLE LR1130ŒX3MM BATTERY  3OLARBATTERY INCLUDED

/PERATINGITEMPERATURE Ž ^ Ž##Ž&&^ Ž&

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