KEY
IDENT
I
FICATION
co
I
j
.'
r
Po
w~
r
swl tcl1
Wh
en tl10 pow or awl th
is so
t t
mech anism run
c tions
to
all
ow olcu
l
H
N
" P
cl
\
IOI\
,
th
O
outo
mati
c
cl
earing
tl
o ns to
bo
stnrl
ed il'nmed lately
.
II] ]
'i ~
D
'
1
JlI
I
Displ
ay
panel
T he disp lay
panel
is
capable of d isp laying
an en
t ry number or resu
l
t up to
8
dig
its.
Signs
appear in
the
l
owest d
igi
t (Re fer to Par
.
"
EX
PLA
N
AT
ION OF
SIGN DI
SP
L
AY
" .).
[QH~)
o
Numeral key
s
I
Dec
im
al
poin
t
key
Number en
t
ry
ke
y
Used
for enterin
g numbers into
th
e
calculat
or.
Ex
.
12.3
->
m
[gJ
0
@}
0 .7
->
0
IZl
•
Wh en
the
integer part of an entry num
be
r
exceeds 8
d igits, an overflow
err or
takes
pl
ace.
•
Th
e entry
of th
e
8th d ecim al digit and th
e
subsequent digit
is neglec
ted
.
I±l
,
El
,
~
,
El
,
El
Basi
c calcu lati on key
s
Depress
th
ese
key
s
according to m ath em
atical
formul
a
in
add
iti on,
subtrac
ti
-
on
,
mu
lt iplica
ti on and
di
vi sion
.
Depression of th
e
§)
key fin
ds o
ut
a
calcul ated
res
ult.
Clearl
c
lear
entry
key
1
.
All clear
If thi
s
key
is
depressed to
cance
l an overflow err
o
r, etc., th
e
w
hole
m achin
e
except th
e
m emory
is
cleared
.
2.
Clear entry
(correc
ti
o
n
o
f wr
ong
onty numbers)
If thi
s
key
is
depressed
immed
iately after
a
wron
g
number, th
e numbe
r
is
c
l
ea r~
d
aw ay
,
and if it
is
furth er depressed, th
e
wh
ole
m
achine
except
th
e
memory
is
cleared
.
Change
sign key
Used to
reverse
th
e
sign
o
f
a d
isp layed number
.
Recall
and clear memory key
If th
e
key
is
dep ressed
o nce
, th
e
content of th
e
memory
is
recall
ed
.
(At thi
s
tim e, how ever, th
e state o
f th
e
m emory rem
ains as
it w
as
), and
if
continu ously
depressed twi
ce
, th
e
m emory
is c lea
red
.
11