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9
'0'
[
log
I
Comm
on
logarit
hm key
Calculates
logarithm
to
th
e
base of
10
of the
number dis-
played. Calculates
lOX
in the
inverst
mode.
D>
R
[R
.. D
j
Radian to degree key
ntis
key is
used
to convert
a displayed value
in
radian
into
a value
in
degree,
or
in degree
into
in radian in the
bl\'crse mode.
'OMS
[~(I[GI
DMS
to
deci
mal degree
key
This key is
used
to convert
a
value in
degree/minute!
second
into
a value in
decimal
degree,
or
in
decimal degree
into
degree/
minute/second
in the inverse
mode.
A
value
to
be
converted should
be
entered
as xx .yyv: (x
,
degree;
Y.
minute
;
z, second). This
key operates
with
the selector
switch
in
degree.
P>R
[R toP
]
Rectangul
ar to
pol
ar
key
Used to
convert x and y of rectangular
coordinates into I
and
0
of polar
coordinates,
o
r
polar
to
rectangular
in the
inverse
mode.
Exampl
e:
eX,
Y)=(
4
,
S
l ln(R.
8)
06
@)3ffi4B
-
[36.
869897
I
O(degree
)
§
-1
5
.
IR
(R.' J-(
2
.
3<r
JIO(X.
YJ
D
O
@)2§130~~
11.
7320509
Ix
coordinate
§l--I1.
IYcoordi
nate
[i,<f]
Stati
stical
calcul ation
key
This
key sets
the
calculator in the
statistical
calculation
mode. In this mode arithmetic mean,
number
of
data
and
variance can
be
obtained.
The
memory
register is
used
as
an
item
counter, so
l!]
and
(!l)
can
not
be
used.
See
page 18.
lliJ
O~n-bracketlparenthesu
key
QD
Oosed-brackel/p:uenthesu
by
These keys
in
pairs
implement
two levels
of
parenthesis.
All
arithmetic
fu nctions
and
scien tific functions,
except
P-R,
R-
P
Bnd
statistical
calculations, may be
nested in
parenthesis.
See
page
17
.
R
o
~
G
Depee/
Radian/G rad
selector
swi
tch
In
calculation of trigonometric
func
tion,
the display
register
is assumed
to
contain
un
angle ex
pressed in degrees,
radians
or grads
as
selected by this switch. When
calculat-
ing
any inverse
trigonometric
fun
ction,
the result is
calcu-
lated in
units
as selected by
this switch.
The midway
position
of
th
is
switch may cause
misoperation.
OFF
~
O
N
Powe
r
switch
10
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