-E16-
¾
3 cos (
π
3
2
rad) = – 1.5
RAD
3
¼
c o s ( 2
¼
π
3 =
3 [ cos ] [ ( ] 2 [ x ] [ 2nd ] [
π
] [ ]
3 [
]
– 1
.
5
¾
3 sin
–1
0.5 = 90 deg
DEG
3
¼
s i n
–1
0
.
5 =
3 [ 2nd ] [ sin
–1
] 0.5 [
]
9 0
.
Hyperbolic / Inverse-Hyp. functions
SR-281
/
SR-282
uses [ 2nd ] [ HYP ] to calculate the hyperbolic
functions and inverse-hyperbolic functions - sinh, cosh, tanh, sinh
–1
,
cosh
–1
and tanh
–1
.
(Note) : When using those keys, make sure the calculator is set for the
angle unit you want.
¾
cosh 1.5 + 2 = 4.35240961524
DEG
c o s h 1
.
5 + 2 =
[ 2nd ] [ HYP ] [ cos ] 1.5 [ + ] 2
[
]
4
.
3 5 2 4 0 9 6 1 5 2 4
¾
sinh
–1
7 = 2.64412076106
DEG
s i n h 1
–1
7 =
[ 2nd ] [ HYP ] [ 2nd ] [ sin
–1
] 7
[
]
2
.
6 4 4 1 2 0 7 6 1 0 6
Coordinates transformation
Rectangular Coordinates
Polar Coordinates
x + y i = r (cos
Ӱ
+ i sin
Ӱ
)
(Note) : When using those key, make sure the calculator is set for the
angle unit you want.
The calculator can perform the conversion between rectangular
coordinates and polar coordinates by [ 2nd ] [ P R ] and [ 2nd ]
[ R P ].
