Key Operation
1.23
90
456
456
64 4
1.23
4.5
4
4 1.2
2.3
5.6
2.3
7
123
78 23
12
2 3 3 64 4
2 3.4
5
6.7
Copyright L
EXIBOOK
2002
- 25 -
GB
0.5
SHIFT 2
2
0.741
2.5
0.8
0.9
sin
-1
0.5=
cos
-1
√
2/2 = ? rad
=
η
/4 rad
tan
-1
0.741 = ?°
= ? °
2.5x(sin
-1
0.8-cos
-1
0.9)
= ?°’ ‘’
30
R
0.785398163
0.249999999
D
36.53844576
36°32’18.4”
D
68°13’13.52”
If the total number of
digits for degrees /
minutes / seconds exceeds
10 digits, the high-order
values (degrees and
minutes) are given display
priority, and any
lower-order values are not
displayed. However, the
entire value is stored
within the unit as a
decimal value.
EXE
5
MODE
EXE
4
MODE
EXE
EXE
EXE
EXE
SHIFT
sin
-1
cos
-1
SHIFT
sin
-1
SHIFT
tan
-1
(
(
√
SHIFT
EXE
)
SHIFT
SHIFT
°’ ‘’
cos
-1
)
SHIFT
η
÷
x
-
÷
(
(
)
)
-
-
°’ ‘’
SHIFT
Example
Log 1.23 (log
10
1.23) =
ln90(loge90) =
Log456
÷
ln456 =
4
x
= 64
x.log 4 = log 64
x = log 64 / log 4 =
10
1.23
=
e
4.5
=
10
4
xe
-4
+1.2x10
2.3
=
5.6
2.3
=
7
√
123 (=123
1/7
) =
(78-23)
-12
=
2+3x3
√
64-4 =
2x3.4
(5+6.7)
=
Display
0.089905111
4.49980967
0.434294481
3.
16.98243652
90.0171313
D
422.5878667
52.58143837
1.988647795
-21
1.305111829
10.
3306232.
Remark
log/ln ratio = constant M
x
y
and
x
√
given calculation
priority over x and
÷.
EXE
EXE
log
EXE
In
EXE
SHIFT
10
x
SHIFT
10
x
SHIFT
10
x
EXE
EXE
x
y
x
√
x
√
EXE
EXE
EXE
SHIFT
e
x
SHIFT
SHIFT
e
x
log
in
÷
EXE
log
log
÷
x
x
2.3.3 Logarithmic and exponential functions
●
The operations noted below cannot be performed in the BASE-N mode
(-)
+
+
EXE
EXE
x
x
+
SHIFT
x
y
x
y
(-)
