2.
Calculations
of
Functions
2-1.
Function
Keys
How
to
Use
Function
Keys
When using
the
function
ke
y
s.
there are
two
cases
of
inpu
t.
One
is
of
one
va
riable
and the
other
of
two
variables.
The
results
of
these
inputs
can be
obtained
according
to
the
following
operational
procedures.
The
calcu
lation
accuracy
at
this
time
is
always
based
on
10
digits.
I
Key
operation
Input
I
Kinds
of
functions
variables 2 3 4 5 6 7
I I
I
,3,
2 . I I
I
various
V ' V J a , stn, cos, tan,
---->
~
variable
function
: (result) I
1
variable
log,
111,
ex,a
~,
DEG,
RAD
I
keys
i
arc (sin, cos,
tan
) var
iable
III.C,aI
(result)
II
I
variable
I
variable
I (result) I
II II
(a)
(x)
:varia
ble
(result) (result)
---4
2 variables
REC
B B
~
(r)
(e)
(
x)
(y )
I
variable
(resu
It)
(result)
-+
POL
(y)
i3 (r)
51
(6
)
t
~
'
(1
(X'
Yx
)
However,
x,
y,
r, e
~
(
1)
Regarding
di
sp
la
y
method
last 1
or
2
digits
are replaced
with
zeros.
As
a rule,
the
results are
displayed
with
an
(Ex.)
e25
accuracy
of
10
digits.
(2511
..
.......
72'004
'
899
'
330.)
(Ex.)V3
237
(3 a..,
..
1.732050807)
(211
3711···
137'
438'953'900.)
Sil1-
1
0.45
(2) When
function
keys are used,
floating
calcul-
(.45.
II
...
,
.26.74368395)
ations
are
alwa
ys
performed
no
matter
what
the
When
the
results consist
only
of
fractions,
decimal
poi
nt
selector dial
designation.
10
digits
belo
w
the
decimal
point
are dis- (
Ex.)
Setting
.~
~
...
L v
..
...,
played.
COS
30°
(Ex.
) s
il1
45
°
(3031
.
...
.
0.8660254038)
(4511
.....
0.7071067812)
-·-30°33'33" ---->
Decimal
degree
log,o 3
(30.3333
E
...
3055916667)
(3 a
....
.
0.4771212548)
(3) When
performing
decimal
point
selector
dial
The
trailing
zeros in
the
decimal
part
of
the
designation
in
the
result
, depress
the
0
key
results are
always
suppressed. again.
(Ex.)
sin
30
° (30
II
..
..
.0.5)
(Ex.)
Setting
~
L y
..
-,
252
.-
(25
II
.....
625
.) cos 30°
When
the
integer
of
the
result
using
the
(
30
11
8
..
..
0.8660)
II,
II
or
II
key
is
11
or
12
digits,
the
10
