61
Scientifi c Calculations
Example
Key operation
Display
sin 60 [°] =
s
.
{
60
=
sin60=
087
cos — [rad] =
~
1
1
.
c
(
.
t
8
4
)
=
cos(π©4)=
071
tan
–1
1 [g] =
~
1
2
.
7
1
=
tan-
|
1=
5000
tan
–1
1 [°] =
~
1
0
.
7
1
=
tan-
|
1=
4500
• The range of the results of inverse trigonometric functions
θ
= sin
–1
x
,
θ
= tan
–1
x
θ
= cos
–1
x
DEG
–90
≤
θ
≤
90
0
≤
θ
≤
180
RAD
– —
≤
θ
≤
—
0
≤
θ
≤
π
GRAD
–100
≤
θ
≤
100
0
≤
θ
≤
200
Example
Key operation
Result
(cosh 1.5
+
sinh 1.5)
2
=
s
(
.
]
c
1.5
+
.
]
{
1.5
)
.
;
=
2009
tanh
–1
— =
.
]
7
(
5
8
7
)
=
090
log 50 =
.
h
50
=
170
In 20 =
.
d
20
=
300
10
1.7
=
.
:
1.7
=
5012
e
3
=
.
R
3
=
2009
— + — =
6
.
;
+
7
.
;
=
031
8
–2
– 3
4
×
5
2
=
8
.
@
,
2
-
3
.
@
4
x
5
.
;
=
-202498
(12
3
)
–
=
12
.
@
3
.
@
4
.
;
=
645
49 –
4
81 =
.
}
49
-
4
.
:
81
=
400
π
4
π
2
π
2
1
4
1
6
1
7
5
7
4 Scientific Calculations.indd 61
4 Scientific Calculations.indd 61
06.7.10 8:02:15 PM
06.7.10 8:02:15 PM
