Bowmar MX 100 User manual

INTRODUCTION
ihe Bowmar MX 100 Scientific Brain utilizes
recent deveiopments in solid-staie
integrated circuitry to provide a vast
extension of conventional slide-rule
capabilities, with far more accuracy. It is
also more versatile, and it is compact enough
to be pocketable. Jt replaces tedious and
eye-straining correlation of finely inscribed
slide-rule scales with a simpler lou ching of
buttons on a keyboard. At the same time, it
reduces determination of a. numerical result
to the reading of the numeral directly from a
lucid display, It also supplements functions
01 a conventional log-Iog··decitrig slide-rule
by t€3turing a memory that eases progress
through complex multiple-operation
problems.
Your new Brain operates in the algebraic
mode and can accept a numerical input of as
many as eight digits. It handles the four
basic algebraic operations (addition.
subtraction, mUltiplication, and division) and
those scientific functions listed below, all
with full floating point.
1. Sine. cosine, and tangent of degrees or
radians (depending on the setting of an
external switch).
2. Inverse trigonometric functions of sine,
cosine, or tangent,
3. Natural and common logarithms
4. Exponential functions (e~) and
exponential
powers (yX)
5. Square root (v'x) and inverse (Ijx)
6. Keys for 'iT and sign change
1
,l.,lll '. J. 1 il.
;"..IdbJL
diU, t5 U'
,ii! Ii '--L.U ,1Ft:

7. A key for the exchange of contents of
the display te~Jister (x regis tor) and
working register (y register) t8
In addition !o these functions, your calculator
has memory with tho foflowin(J meaDs of
access:
1. A storage key m tor storing a
displayed numeral in the memory.
2. A recall key t:!m for withdrawing and
displaying the content of the rn8mOty
without losing it tram the memory.
3. An exchange key ~ tor 8Kchanging
contents 01 the display and memory
registers.
4. A memory Clear key mfor discarding
content of the memof"Y.
Your calculator also features capability for
chain and automatic constant operations> Its
display is right adjl,.,lsted with leadjng zero
suppression. With algebraic operations, ,
results of up 10 sixteen digits may be obtamed
by use of overflOW interpretation, With
scientific operaEons, display results may
contain up to six digits. the iast digit having
a±1 tolerance,
To realize the full potential of the MX-IOO you
are asked to carefully read the following
material and instruclions. Optirnum
familiarity can be gained only through
frequent use, and as a start you are advised
to foilow through eactl iJiustralive instruction
with your calcu':ator in lwnd, During routine
use, reminders ot opemt(onal procedures
may be obtained from the brief outline of
instruciions ptinted on tile back of the
calculator. 2
7, 11 II £JSL&14 UllIli.tdI aU)
OPERATION
AC Operation:
Set the switch on the back of the Charger/
Power Supply to the electrical outlet
voltage, i.e., 115 or 230 Volts. Plug the
Charger into the outlet and the connector
into the Calculator. (Note that the
connector (s k'2yed.) AHer these
connections, the power switch may be
iurned on and operation started.
Baltery Operation-
Disconnect the Charger cord and turn the
power switch "ON". With normal use a lull
battery charge cao be expected to supply
about <1 hours of working lime.
NOTE: When the low battery indicator
(L) on the display is lighted, do not
continue battery operation. This
indicates need for a battery charge.
Use of the Calculator can be continued
during the charge cycle. Charging will
continue whether calculator is on or ott.
Battery Charging:
Simply to!low the same procedure. 3S ir. AC
operation. The Calculator may be used
during the charge period if desired. in
order to iuily charge abaHer·y which has
been completely discharg€.d, 7 hours is
required. In most ca$e~". an overnight
charge should be adequate.
NOTE· AIU,ough no damage wiil r-esl)lt
from prolonged periods winl tho Charger
connected, (t i'2. advisable to remove i.he
Charger when it is not in use or after
afull recharge cycle.
CAUTION: To avoid possitlle damage, use
only the charger provided with the calculator.
,:;::..\J£LJUIL.lI£,! (it.U;; $IIU h ,. a LJ.t1 " .. M._.£.;

5
CONTROLS &INDICATORS
NOTE: Descriptions that follow wili be beller
understood jf you take a moment to learn
these basic facts.
First, two separate registers are provided for
retaining the numbers you enler into the Calculator
for an aritt,metic oper"atlon. One is the Display
Register which is aiso refened to as the x Register.
The other is Working Register or y Register. Any
number you enter is keyed direcily into the
Display IX Register) for yOU! visual review. This
entry is Hlen completed wrlen you key in the
appropriate arithmetic operative (+, -. x, or _C-_).
As you begin to enter the second number, ttle
first is automatically transferred fom the x Register
to the y Register. The y Register retalns this first
number until you clear it or you exchange
contents of the x and y Registers by means of a
special key provided for that purpose.
Second, your Calculator Keyboard was designed
for a minimum of keys in order to pro'liide
optimum fingertip access within conven'lent
confines. This feature was enabled by incorporat-
ing a block of dual purpose keys that work in
conjunction with an electronic "shift" system.
Ttle electronic "shit\" of your calculator compares
with the shift of a typewriter. Your calculator
responds 10 the characters on the keys in its
unshifted mode, and it must be shifted each time
a keyis to be operated for a function printed
above a key. The calculator's shift key is \dent(Hed
by tile lettel' ··F". ReIer to tile sec!Ion of
PRELIMINAi1Y INSTRUCTION for details of dual
purpose Keys.
-5.
4 .. ~=-
3.
I.J Jii
2£
,j 2_
b4 w

1. "ON" Switch
Atwo position sllde
switch that turns the
Calculator "ON" &
"OFF".
e'
o
enters '1' Raises e(2.71828) to
power of x shown on the
Display, up to a limit of
x=18.42.
3. Keyboard
25 keys that
may be categorized into groups
of data keys, arithmetic operation keys,
memory
operation keys, and command
function keys as tollows:
A. Data Funclion Keys (all are dual-purpose
and labelled ac.cordingly. Character mode
refers to label on keyface, while Function
mode refers to label situated directly
above key.)
enters '6' Computes the arc-
tangent, in degrees or
radians, of any displayed
number whether positive
-, or negative.
,
enters '2' Computes the natural
logarithm of any
displayed number
greater than zero.
Error condition is set for
a negative number.
enters '3' Computes the logarithm
(base 10) of any
displayed number
greater than zero. Error
condition is set for a
negative number.
enters
'4' Computes the arcsine, in
degree or ra.dians, of
any displayed number
from 0to ±1. Error
condition is set tor any
other number.
enters '5' Computes the
arcosine,
in degrees or radians, of
any displayed number
from 0to :±:1. Error
condition is set for any
other number.
LNX
EJ
SIN-T
D
COS-T
D
LOG X
D
Atwo position slide
switch that selects
degrees or radians for
the expression of angles.
6
Function Mode
Computes square root of
a displayed number that
is greater than zero.
Error condition is set for
a negative number.
enters '0'
Computes reciprocal of
a displayed number.
Error condition is set for
a display of zero.
Ilx
l:)
Character
Key
Mode
\/i
enters '.'
a(decimal)
2. OEG/RAD Switch
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B. Arithmetic Operation Keys
C. Memory Operation Keys
Clears the Memory to
zero.
Completes previous
operation and sets
divide command.
Completes previously
entered add, subtract,
mu(tiply, divide or y'"
instruction.
•
Adds the Displayed
number to the content of
the memory and stores
the sum in the memory.
Displays the content of
the memory. The content
of the memory is not lost
with this operation.
Exchanges contents of
the x {Display} Register
and the Memory.
D. Command Function Keys
Completes the previous
operation and sets add
command.
enters '7' Computes the sine, with
proper sign, of any
displayed angle, whether
in degrees or radians
and whether positive or
negative.
enters '8' Computes the cosine,
with proper sign, of any
displayed angle, whether
in degrees or radians
and whether positive ar
negative.
enters '9' Computes the tangent,
with proper sign, of any
displayed angle, whether
in degrees or radians
and whether positive or
negative.
a
SiN
D
cos
D
TAN
D
EJ
Completes the previous
operation and sets
subtract command.
Completes previous
operation and sets
'multiply' operation.
S
During an entry it clears
the entry with single
depression. For all other
operations, it clears all
registers except the
memory register with
single depression,
9
II. £Si. ••

a
It clears the overflow
sign with single
depression.
Enables a number yto
be raised to a power x
(see
pertinent
Instructions) .
Shifts between Function
and Character Modes ot
dual-purpose keys.
A
dual-purpose key that
changes sign of the
Displayed number in the
Character Mode, and
displays 7T (3.1415926)
in the Function Mode.
5.
6.
Decimal Point
Indicator
Function Mode
indicator
Automatically appears to
the
right of any number
entered, unless inserted
in another sequence by
use of the Decimal key.
Confirms shift of dual
function keys from
Character to Function
Mode.
Appears as:
Charger Cord Socket
Charger/Power Supply
.'0,
11
2. To clear an incorrect entry
Example: 48 + 12 \s your calculatlon
A. You have already entered 48 -t
Display is',
1. To clear for new operation
A. Touch the ~ key two consecutive
times to clear all registers
B. Cleared display will be:
PRELIMINARY INSTRUCTIONS
Exchanges contents of
x and yRegisters.
Indicates a
condition or
computation that the
Calculator is not
intended for or cannot
perform. Also indicates
Overflow.
Appears as:
10
Error and
Overflow
Indicator
4. low Battery Indica\or Warns of need for
battery charge during
battery operation.
Appears as:
Minus Sign
Indicator Appears as:
dlL JLCii; Ji !.tEUS
$t JtJ LUi!

In algobraic form, these computations are:
16,3
4, 296) 438
2. 438 -296 ~
4. 438 '0' 296 ~
3. 438
x296
2. 438
~ 296
1. 438
+2\}6
1. 438 +296 =
3, 438 x296 ~
C. Results of more than eight but less
than
seventeen digits will appear with
the overflow Indicator (described
under Conlrols &Indicators). See
Instructions for Overflow
I nte rp retal ion.
4. To enter amathematical computation
Entry of a computation is greatly
simplified when it is first converted to
algebrnic form.
These computations are then entered a
digit or operative at a time, beginnIng
with the left-most figure and progressing
to the right For full detalls refer to specific
instructions and examples that follow.
5. Reading anumerical result
A. Results 01 etght digits or less are read
directly from the Display.
B. In certain computations, zeroes at
the extreme right of a decimal result
will be suppressed. For example, a
result representing S16.30
may appear as:
B. Then you enter 13 ins.tead of 12.
Display is:
123.45
A mistake!
C. To clear 13, touch the ~ key
once only.
Display is:
D. Then enter 12.
Display is:
E, Finally, touch the II key for
answer.
Display 'IS:
NOTE: An ~ncorrect entry should be
cleared prior to any other entry
or operation.
3. To enter anumber
Example: enter 123.45
A. Starting with the left-most digit
touch keys as follows: 1,2,3, .,
4, and 5.
B. Display will be:
12
I_
XU h. .2
! _. :
Ii. -La Q

9.83
26.22
16.39
16.39
Answer
c. Touch a
b. Enter 16.39
d. Enter 9.83
e. Touch I!I
SAMPLE CALCULATIONS
ADDITION
Example #1: To calCUlate 16.39 +9.83 "=
Do these steps display will be
a. Touch ~ twice.
Ex.ampte ~2:
To calculate 16 +9+8.3 +4.1 "=
00 these steps display will be
3. Touch k1I twice
e. Touch a
b. Enter 16
c.
Touch II
d. Enter 9
f. Enter 8.3
6. Dual purpose keys
Dual purpose keys are identified by dual
labels. One label is directly on each
keyface and is referred to as
Character Label. The other label is
directly abo\'€ each key and is the
Function label. Thus, the dual labels
suggest operation in either the Character
Mode or the Function Mode.
Normally the Calculator responds
directly to the Character Mode of a dual
purpose key. The response may be shifted
to the Function Mode by first touching
the iii key.
Touching the D key shilts Calculator
response to the Function Mode for the
operation of one dual purpose key only.
Each subsequent use of Function Mode
must be preceded by operation of the
o key.
When the D key is touched to shift
Calculator response to the Function
Mode, a corresponding Function Mode
indicator appears on the Display, Note
that the Character Mode may then be
re-established either by retouching lhe
D key or by completing a Function Mode
operation.
1a
-',ijULL.MJ & AUIB.! ;; II 14#£._ Ii ,. tXt
iJ
g. Touch D
h. Enter 4.1
i. Touch m
L ?'ill a
Answer
15
--
33.3
.37.4
1!

56.5
29.32
29.32
-50.
- 10.
-20.
a. Touch ~ twice
a,
Touch W
twice
b, Enter 29.32
c.
Touch EI
d.
Enter 56.5
1)
d. Enter 82
e. Touch II
f.
Enter 10
g.
Touch a=I
h.
Enter 40
I. Touch a
Answ€r
MULTIPLICATION
Example ::6 To calculate 29.32 x 56.5 "".
Do these steps display will be
c. Touch a
Example ii5:
To calculate 62 -82 +10 -40 =
Do these steps display will be
b. Enter 62
9.21
19.1
14.1 '
12.81
12.81
-5~
display wU\ be
Answer
SUBTRACTION
Example ;'3: To calculate 12.81 -3.6 =
Do these'Tsteps display will be
a. Touch ~ twice
Example ::4:
To calculate 23 -6+2.1
Do these steps
a. Touch fi.J1 twice
b. Enter 12.81
c.
Touch a
d. Enter 3.6
e.
Touch III
Answer
c. Touch II
d, Enter 6
e. Touch a
I. Touch a
b. Enter 23
1. Enter 2.1
g. Touch a
h. Enter 5

8. Touch II Answer
1656.58
3.
0.1111111
0.3333333
1
1 . '_
DISPLAY WILL READ
for for for
subtract multiply divide
to get
REPEATED OPERATIONS
Example #8:
Arithme1ic operations (add, subtract.
mUltiply, and divide) may be repeated on a
single r1umber as follows (using 1he number
3 as an example).
Initial steps
for each operation are
a. Touch W. 1wice to get
b. Enter 3
then
do these
steps
c. Enter a
3. 3.
3.
or
I
II
or
13
!
or
.,
II
•,,
~
..
...
rl
TOUGlliiI
.-0.
0
9."
e. Touch II
9.
-3. 27.
f.
Touchll
12. -6. 81.
g. etc.
b. Enter 81
c. Touch II
DIVISION
Example #7: To calculate 61 -+- 3 -+- 9=
Do these steps display will be
a. Touch ~ twice
f. Enter 9
g. Touch II Answer
d. Enter 3
e. Touch II
18 19
;;

N+ Y.
N+ X.
.2N.
. N +Z.
display will be
,
CONSTANT OPERATIONS
Addition, subtraction, mutipfication, and
division by a constant may be performed
as follows (using the number 'N' as the
constant).
A. Addition
Ex.ample #10:
Do these steps
a. Touch ~ twice
b. Touch a
c. Enter N
d.
Touch iii
e. Entor the
number X
f.
Touch Ell
g. Enter the number Y
h.
Touch iii
i. Enter the number Z
}
j.
lauen iii
k. etc.
IB.
Subtraction
Example #11 :
a.
Touch ~
twice
b. Enter 2N
21
j
I
.15.
1436.
1485.
. . 37.789473'
20
Do these steps
a. Touch ~
twice
b. Enter 73
c. Touch a
d.
Enter 26
e, Touch E:I
f. Enter 15
g.
Touch II
h.
Enter 49
LTouch II
J.
Enter 38
k.
Touchl!"-
Answer
CHAIN OPERATIONS
(Mixed Arithmetic)
Example #9:
To calculaltiI3+26) 15..-::,_49,_
38 -
display will be

YIN.
XIN.
23
b. Enter 32 degrees
FUNCTION OPERATIONS
Iuslng gkey)
I Trigonometric Function
All trigonometric functions may be
performed in degrees or radians, as
determined by posltioning of the
DEG/RAD switch.
A. Sine
Example #14: To obtain SIN 320
(set the DEGjRAD switch to DEG)
Do these steps display will be
a. Touch ~ twice
D. Division
Example #13:
a.
Touch
~
twice
b. Enter
m
c. Touch
II
•m
d.
Enter
e.
Touch
II
f.
Enter the number X
g.
Touch II
h. E:nter the number Y
i. Touch
II
j. etc.
2t $if
NxZ.
Y- N.
x- N.
a
/ ' Y.
h. etc.
c. Touch EI
C. Multiplication
Example ,~12:
a. Touch t1I twice
d. Enter the number Y
e. Touch II
f. Enter the number Z
g. Touch II
12
_ J i
b. Enter N
j. etc.
c. Touch a
!. Touch II!
e. Touch iii
d. Enter N
f. Enter the number X
g. Touch II
h. Enter the number Y
-

0.848048
\32.
Answer
c. Touch iii
cos
d, Touch D
b, Entor 32 degrees
a. Touch t"i twice
B. Cosine
Example ;17: To obtain COS 32°
(set the o'EG/RAD switch to DEG)
Do these steps display will be
0.529919
.4.4157
\32.
Answer
a. Touch ~ twice
b. Enter 4.4157
G. TOUGh D
SIN
d. Touch Ii
Example #15:
To obtain SIN 4.4157 radians
(set the DEG/RAD switch to RAD)
Do these steps
display will be
Example (:16: To obtain SIN (-198°)
(set the DEG/RAD switch to DEG)
Do these
steps display will be
b. Enter 198 degrees 0.624869
Answer
C, Tangent
Example #18: To obtain TAN 32°
(set the DEG/RAD switch to DEG)
Do these steps display will be
a. Touch ~ twice
c. Touch Ii
TAN
d. Touch I]
b. Enter 32 degrees
198.
-0.95631
\4.4157
Answer
a. Touch W. twice
G. TOUGhl]
SiN
d. TOUGhS
c. Touchm,
d. TOUGhl'il
SiN
e. TOUChD
Answer
-198.
-: 198.
0.309017
\I Inverse Trigonometric Functions
(degrees or radians)
A. Arcsine
Example ,';"19; To obtain SIW' 0.529919
(set the DEG/RAD switch to DEG)
Do these s'\eps display wii! be
a, Touch ~ twice
-
;, ;
24
_ i. '-
_ iJ.4.
b. Enter .529919
.L
25
;
,0.529919
.'

B. Arcosine
Example ;;21: To obtain COS-
10.848048
in Radians
(set the
DEG/RAD switch to RAG) ,
Do these steps display will be
2.32
2.32
0.624869
31.99999
0.098274
\0.624869
-2.32
-2.32
display will be
C. Arctangent
Example #22: To obtain TAN-) 0.624869
(set the DEG/RAD switch to DEG)
Do these steps
display will be
b. Enter .624869
a· Touch ~ twice
III Exponenflal Function
Example /:23: To obtain e
Do these steps
a. Touch ~ twice
c. Touch II
TAN-1
d. Touch DDegrees
b. Enter 2.32
"
c. Touch ~
d. Touch IJ
e'
e. Touch D Answer
0.848048
0.558505
.31.99998
'. 0.529919
-; 31.99998
",. 0.529919
-.: 0.529919
\0.848048
\ 1 0.529919
Degrees
c. Touch iii
COS-
1
d. Touch DRadians
Th
lB3 twice
a. auc £!I
b. Enter .848048
c. Touch ~
d. Touch D
SIN-l
e. Touch a
b. Enter .529919
a. Touch ~ twice
c. Touch iii
SIN-l
d. Touch aDegrees
Example ;20: To obtain SiN-I (- 0.529919)
Iset the DEG/RAD switch to DEG) 'b
Do these steps display will e
26
27
-", __ : .' •.• '.l.' __ .... .... : .2.Ji2i!U"··- •• ,.J •• I!il¥I!ilUI!il. _

IV Natural Logarithm
Example i24: To obtain In 5·623 .
00 these steps display will be
638.72
0.0015656
3.1415926
\638.72
display will be
,
Answer
b. Enter 638.72
VII Reciprocal
Example #27:
To obtain the reciprocal of 638.72
Do these steps display will be
a. TaUCrl ~ twice
c. Touch Q
1/'
d. Touch D
VIII Pi (ee)
Example :::28: To obtain a numerical readout
for the constant 7..
Do these steps
a. Touch ~ twice
b. TOUCh D
"
c. Touch t:.m Answer
EXPONENTIAL POWER
5.623
4.83
0.683947
1.726866
\4.83
\5.623
c. Touch D
lOGX
d. Touch EJ Answer
b. Enter 4.83
a. Touch ~
twice
b.
Enter 5.623
c.
Touch D
LNX
d.
Touch B
Answer
V Common Logarithm
Example :(25: To obtain log\o 4.83 ,
Do
these steps display will be
a. Touch ~ tWice
VI Square Root
Example ::26: To obtain "\/341.57
Do these steps display will be
$r
3.555349
87300.83
Answer
29
Example #29: To obtain (35)3-2
Do these steps display will be
a. Touch ~ twice
b. Enter 35
c. Touch m gives the
natural log of 35
d. Enter 3.2
e. Touch II
341.57
18.481612
\ 341.57
b. Enter 341.57
c. Touch 11
\. x
d. Touch II Answer
28
a, Touch ~ twice

36.
72.
72.
72.
72.
y register
31
107.
display will be
TRANSFER XAND YREGISTER
CONTENTS
~.~
The t:i2 key offers many Possibiiities for use.
One of tt18se offered below.
Example #30: The problem 36 +72 has been
entered, and you decide fa change the number
36 to 35. Proceed
as follows, first by entering
the problem:
ilL]]
Do these steps
8. Touch ~
b. Enter 36
c. Touch II
d. Enter 72
g. Enter 35
To change 36 to 35
8.
Touch £Ii
f. Touch ~ once
h. Touch IiIAnswer
720.
O.
3j.1 _ - t.¢'
?
O.
O.
250.
250.
550.
550.
550.
670.
670.
670.
670.
670.
670.
720.
670.
_R
720.
120.
300.
120.
300.
670.
250.
300.
250.
36000.
itt 1 J!
Answer
display will be
twice ,
MEMORY OPERATIONS
The following exercise is aimed at fami!arizing
you with memory operations and capability.
memory
will contain
Do these steps
a. Touch m
b. Touch em
c.
Enter 250
d. Touch ~
e.
Enter 300
t
louch 2
g. Touch EI
h.
Enter 120
i. Touch £
jTouch II
k.
Enter 50
I. Touch a
m.
Touch 1m
n.
Touch
II
o.
Touch
E3
p.
Touch 1;1
q.
Touch
1m
-
l.
-" .. ;. LX

0.30103
2.302585
1.999999
Example i32: find the antilog of .30103 (base 10)
A, One way is to raise 10 to the power of the
logarithm
as follows:
Do these steps display will be
a. Touch ~ twice
b. Enter 10
c. TouCh !iI
(gives natural
log of 10.)
d. Enter .30103
e. Touch DAnswer
0.0652173
b. Ellter 3
c. Touch II
d. Enter 46
e. Touch n
MIXED PROBLEMS
Example ':31: do 36 +9
.- _.- =
8+~_
46
Do these steps display will be
a. Touch ril
o.
O.
o.
O.
O.
-58.
memory
will hold
-58.
-58.
display will be
~~x~amrjP~le~.~-:-3J3~:fdIO~~ffi13:~=]~
)36 (36 43)(36 15) (36 94) ~
36
Do these steps
a. Touch m twice
b. Touch;a
c. Enter 36
d. Touch a
e. Enter 94
f. Touch II
g. Touch =:
37.115902
1.1159028
8.0652173
I. Touch a
m. Enter 36
n. Touch !lAnswer
II'
i. Touch r!I
J. Touch EI
k. Enter 9
f. Enter 8
g.
Touch II
h. Touch I]
32

o.
O.
0.829037
0.687303
0.684
0.687303
0,4701152
0.5298848
-0.18749
\56.
-0,4701152
-0,4701152
15.38939
2
35
:
aa. Enter 36
bb. Touchlil Answer
Example #34: do /1 -O.684SIW 560=
Do these steps display will be
a. Sot DEG/RAD switch for DEGREES
b, Touch ~ twice
c. Enter 56
0. Touch 13
SIN
e. Touch fJ'
f. Touch ~
g, Enter 2
h. Touch
II
j, Touch EI
J. Enter .684
k.
Enter
II
I.
Touch
I!
m. Touch
D
n. Enter 1
o. Touch iii
o.
o.
o.
o.
o.
o.
, . Ail 1
Qt
-1218.
-1218.
-1218.
-1218.
-1218.
-1218.
-58.
-58.
-58.
-58.
-58.
-58.
-1218.
'JJi, 1.
306936.
554.01805
306936.
.36.
8526.
.36.
.15.
- .
7.
-1218.
-58.
-1218.
-58.
h. Enter
36
i.
Touch II
J.
Enter 15
k.
Touch 13
I. Touch t!iliI
m. Touch
iii
n.
Toucht!3
o. Touch ~
p. Enter 36
q.
Touchll
r.
Enter 43
s. Touch EJ
t.
Touch t!iliI
u.
Touch 13 and
im
v.
Enter 36
w. Touch II
x.
Touch III
\i
X
y. Touch a
z.
Touch II
....
b.;.
.1
,j,
Iti
;dO

•
0.0144792
0.0144792
0.0144792
0.0144792
0.0144792
0.0144792
0.0144792
0.9851475
0.992546
0.992546
0.9778042
0.9778042
0.0144792
o. Touch Ii
cos
p. Touch a
q. Touch EI
r. Touch II
s. Touch II
t. Touch 13
u. Touch liiJ
r42676.292
v. Touch IIAnswer 0.0144792
OVERFLOW INTERPRETATION
The positive or negative overflow indicator
indicated by r or ( ,respectively, will appear
when the dIsplay capacity of the calculator is
exceeded.
For example, multiplication of two positive
numbers,
12345678 x345678
will give the following display
The' r' symbol indicates positive 'overftow' and
indicates an answer of more than B digits shown.
To obtaIn the correct decimal location for either
case, simply record the displayed number and
move the decimal polnt 8 places to the right.
The real answer will then be:
4,267.629.200,000.
L 8 places .. j
This procedure applies to all operations. Use the
akey to clear the overflow .
11 .J L2
o.
o.
o.
O.
O.
O.
O.
O.
o.
o.
,UJ; H;
0.0144792
0.0144792
0.014852
0.121869
0.121869
0.0144792
0.0144792
36
~ o.
\0.5298848
0.7279318
memory
display will be will hold
a. Set DEGjRAD switch to DEGREES
d. Enter 7
b. Touch ~ twice
c. Touch m
p. Touch iii
Vi
q. Touch IJAnswer
Do these steps
e. Touch iii
SIN
f. Touch D
g.
Touch
EI
h.
Touch
I!I
i.
Touch
II
J•
Touch
EI
k.
Enter B
I. Touch
I!I
m. Touch
m
n. Enter 7
.....
,
!L
I.