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2·3
Calculations of Functions
Calculation example
Key operation
Display
Trigonometric Functions
Inverse Trigonometric
Functions
Conversion of Radians
~Degree
sin
30°
=
0.5
cos
30°
=
0.8660254038
tan
60°
=
1.732050808
_
sin
0.5433
(radian)
=
0.5169636257
.,
cos
43°26'52"
=
0.7260014702
Sin-I
0.5
=
30°
COS-I
0.707
=
45.00865166°
Tan-I
2.5
=
68.19859051°
1
radian
=
57.29577951°
38°
=
0.6632251157
rad ian
3 0 .
3 0 .
6 0 .
.5433
tiUI
43.2652 • •
.511.
.7 0 7 a .
2.5
II.
1m
38i!
0.5
0.8660254038
1.732050808
0.5169636257
0.7260014702
30 .
45.00865166
68.19859051
57.29577951
0.6632251157
Conversion to Decimal
Degree
Exponential Functions
Power
(Setting
.
-~)
L.5.I.t,
25°5'48"
=
25.09666667°
e
lA
=
4.055199967
e
-
2
•
S
=
0.0820849986
7
s
=
16807
3
'
3.5
7
=
1.710692767
..
-
25.054815
1.411
'
.
2.5am
7115.
.
3[~J
7G
=
3.511• •
25.09666667
4.055199967
0.0820849986
16'807.
1.710692767
Logarithmic Functions
Conversion of Polar
~
Rectangu lar Coord inates
log
5
=
0.6989700044
In2.34
=
0.8501509294
Y
lcr:
~3.41
Y~IX'Y)
30
0
x
5
11m
2. 34
111
3i!4i!
(r)
5:1(8)
1Oi!30i!(x
)
~(y)
(r)
(e)
(x)
(y)
0.6989700044
0.8501509294
5.
53.13010235
8.660254038
5.
Square
Square root
Cube root
23
2
=
529
v's5.36
=
9 .239047569
V125=
5
I
23a
I
85.36.
I
125
11
.
529.
9.239047569.
5
.
(1) To convert degree/minute/second value into deci·
mal degree,
enter
the degree value followed by
the
0
key, then enter the minute and
second
values. If the minute and
/
or
second
value is less
than
10,
enter a zero in front of the numeral.
(2) The negative values are entered with the
e
key.
12
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