File name : CBM_SR-281N_IB_English_black_v09330.doc
Date: 2009/3/30 Trimmed Size : 140 x 75 mm SCALE 1 : 1
-E16-
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-281N
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
θ
+ i sin
θ
)
(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 ].
¾
If x = 5, y = 30, what are r,
θ
? Ans : r = 30.4138126515,
θ
= 80.537677792
o
DEG
( )
R
P ( 5
,
[ 2nd ]
[ R P ] 5 [ 2
nd ] [ ] 30
3 0
