Ativa AT-30S - Manual

3AFETY
"E SURE TO READ THE FOLLOWING SAFETY PRECAUTIONS BEFORE USING
THIS
"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
s +EEP BATTERIES OUT OF THE REACH OF CHILDREN )F ACCIDENTALLY
SWALLOWED
s .EVER CHARGE BATTERIES TRY TO TAKE BATTERIES APART OR ALLOW
BATTERIES TO BECOME SHORTED .EVER EXPOSE BATTERIES TO
DIRECT
s -ISUSE OF BATTERIES CAN CAUSE THEM TO LEAK ACID THAT CAN
CAUSE DAMAGE TO NEARBY ITEMS AND CREATES THE POSSIBILITY OF
FIRE
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
s 5SE ONLY THE TYPE OF BATTERIES SPECIFIED FOR THIS CALCULATOR IN
THIS
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
s .EVER DISPOSE OF THE CALCULATOR BY BURNING IT $OING SO CAN
CAUSE CERTAIN COMPONENTS TO SUDDENLY BURST CREATING THE
DANGER
s 4HE DISPLAYS AND ILLUSTRATIONS SUCH AS KEY MARKINGS SHOWN
IN THIS /WNERgS -ANUAL ARE FOR ILLUSTRATIVE PURPOSES ONLY AND
MAY
s 4HE CONTENTS OF THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT
NOTICE
n
(ANDLING
s "E SURE TO PRESS THE /. KEY BEFORE USING THE CALCULATOR FOR
THE
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
s 4HE BATTERY THAT COMES WITH THIS UNIT DISCHARGES SLIGHTLY
DURING SHIPMENT AND STORAGE "ECAUSE IT MAY REQUIRE
REPLACEMENT
s ,OW BATTERY POWER CAN CAUSE MEMORY CONTENTS TO BECOME
CORRUPTED OR LOST COMPLETELY !LWAYS KEEP WRITTEN RECORDS OF
ALL
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
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
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
OTHER
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 $OING SO CAN REMOVE
PRINTED
n
4WO
LINES
9OU CAN SIMULTANEOUSLY CHECK THE CALCULATION FORMULA AND ITS
ANSWER 4HE FIRST LINE DISPLAYS THE CALCULATION FORMULA 4HE
SECOND
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"EFORE
-ODES
"EFORE STARTING A CALCULATION YOU MUST FIRST ENTER THE CORRECT
MODE
s 0RESSING THE ;-/$%= 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
.OTE
s 4O RETURN THE CALCULATION MODE AND SETUP TO THE INITIAL
DEFAULTS
#ALCULATION #/-0
!NGLE $EG
%XPONENTIAL
A BC
$ECIMAL $OT
s
#/-0 AND ANGLE UNIT SETTING $EG 2AD 'RA BEFORE
BEGINNING
)NPUT
STEPS /NE STEP IS TAKEN UP EACH TIME YOU PRESS A NUMBER
KEY OR ARITHMETIC OPERATOR KEY 
 ! ;3()&4= OR
;!,0(!= KEY OPERATION DOES NOT TAKE UP A STEP SO INPUTTING
;3()&4=
s 9OU CAN INPUT UP TO  STEPS FOR A SINGLE CALCULATION
7HENEVER YOU INPUT THE RD STEP OF ANY CALCULATION THE
CURSOR CHANGES FROM ? TO 
J  TO LET YOU KNOW MEMORY IS
RUNNING LOW )F YOU NEED TO INPUT MORE THAN  STEPS YOU
SHOULD
n
4O 0ERFORM 4O
TYPE OPERATION THIS
"ASIC
CALCULATIONS
3TANDARD
2EGRESSION
;-ODE=;=
;-ODE=;=
;-ODE=;=
#/-0
3$
2%'
s 0RESSING THE ;!NS= KEY RECALLS THE LAST RESULT OBTAINED WHICH
YOU CAN USE IN A SUBSEQUENT CALCULATION 3EE !NSWER
-EMORY
-AKING
WANT
s 0RESS ;$%,= TO DELETE THE NUMBER OR FUNCTION AT THE CURRENT
CURSOR
s 0RESS ;3()&4= ;).3= TO CHANGE TO AN INSERT CURSOR  
)NPUTTING SOMETHING WHILE THE INSERT CURSOR IS ON THE DISPLAY
INSERTS
s 0RESSING ;3()&4= ;).3= OR ; = RETURNS TO THE NORMAL CURSOR
FROM
2EPLAY
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
s 0RESSING THE ;= OR ;= KEY IMMEDIATELY AFTER YOU FINISH A
CALCULATION
s 0RESSING ;!#= DOES NOT CLEAR 2EPLAY MEMORY SO YOU CAN
RECALL
s 2EPLAY MEMORY CAPACITY IS  BYTES FOR STORAGE OF BOTH
EXPRESSIONS
s
7HEN
;#,2=
7HEN
%RROR
CALCULATION WITH THE CURSOR POSITIONED AT THE LOCATION WHERE
THE
n
-ULTI
STATEMENTS
! MULTI
STATEMENT IS AN EXPRESSION THAT IS MADE UP OF TWO OR
MORE
; =
%XPONENTIAL
KEY A NUMBER OF TIMES UNTIL YOU REACH THE EXPONENTIAL
DISPLAY
s 0RESS ;= /N THE FORMAT SELECTION SCREEN THAT APPEARS PRESS
;=
s
s
s !LL OF THE EXAMPLES IN THIS MANUAL SHOW CALCULATION RESULTS
USING
n
 

Ejtq
!NSX

&IX

$ECIMAL
PRESS THE ;-/$%= KEY A NUMBER OF TIMES UNTIL YOU REACH THE
SETUP
s
SETTING
0ERIOD
;=
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
#ALCULATION 0RIORITY 3EQUENCE #OMMANDS AND VALUES ARE
DELETED
/VERFLOW
 4HE ANSWER WHETHER INTERMEDIATE OR FINAL OR ANY VALUE IN
MEMORY  
 !N ATTEMPT IS MADE TO PERFORM FUNCTION CALCULATIONS THAT
EXCEED
 )MPROPER OPERATION DURING STATISTICAL CALCULATIONS EG
ATTEMPTING
 4HE CAPACITY OF THE NUMERIC VALUE STACK OR THE COMMAND
STACK

n
$ISP

CASE -ATH
CASE 3TACK
CASE 3YNTAX
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
)NTERNAL
} X Y X • X
 •
N0R
#ALCULATION
7ITH THESE FUNCTIONS THE VALUE IS ENTERED AND THEN THE
FUNCTION
  n
X  
ANGLE
 } X Y X •
 B  C
 !BBREVIATED MULTIPLICATION FORMAT IN FRONT OF P MEMORY
NAME
4YPE
7ITH THESE FUNCTIONS THE FUNCTION KEY IS PRESSED AND THEN
THE
 • LOG LN E X  X SIN COS TAN SIN n COS n TAN n SINH COSH
TANH n n n
 !BBREVIATED MULTIPLICATION FORMAT IN FRONT OF 4YPE "
FUNCTIONS

n
s /PERATIONS OF THE SAME PRECEDENCE ARE PERFORMED FROM
RIGHT X LN• @ X [LN• ]
s
)NITIALIZING
INITIALIZE THE CALCULATION MODE AND SETUP AND CLEAR REPLAY
MEMORY
;3()&4=
"ASIC
!RITHMETIC
s .EGATIVE VALUES INSIDE OF CALCULATIONS MUST BE ENCLOSED
WITHIN
SIN
s )T IS NOT NECESSARY TO ENCLOSE A NEGATIVE EXPONENT WITHIN
PARENTHESES
SIN n m ;SIN=
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&RACTIONS
s 9OU CAN USE THE DISPLAY SETUP $ISP SCREEN TO SPECIFY THE
DISPLAY FORMAT WHEN A FRACTION CALCULATION RESULT IS GREATER
THAN
s 4O CHANGE THE FRACTION DISPLAY FORMAT PRESS THE ;-/$%= KEY
A NUMBER OF TIMES UNTIL YOU REACH THE SETUP SCREEN SHOWN
BELOW
s
SETTING YOU WANT TO USE ;= A BC  MIXED FRACTION ;= DC 
IMPROPER
s !N ERROR OCCURS IF YOU TRY TO INPUT A MIXED FRACTION WHILE THE
DC
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