CITIZEN SR-281 EN - Manual (Page 16)

File name : SR17E-E.doc
Date: 2003/10/8 Trimmed Size : 140 x 75 mm SCALE 1 : 1
-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 (cosӰ+ i sinӰ)
(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 ].