Citizen SR-135 TII — scientific Calculator Coordinate Conversion Functions [8/18]
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Citizen SR-135 TII — scientific Calculator Coordinate Conversion Functions [8/18]

Citizen SR-135 TII Инструкция по эксплуатации онлайн [8/18] 11501
SR8D1A-E.RTF SIZE : 140x75mm SCALE 2:1 2003/8/22
-
E8 -
Key input display
[2] [
÷
] [3] [=] 0.666666666
[SHIFT]
[]
SCI
FIX
[5] 0.66667
[]
SCI
FIX
6.66667-01
[SHIFT]
[]
SCI
FIX
[ • ] 6.6666666-01
(21) [X
↔
Y] : Exchange key.
Used to exchange the displayed number with the
contents of an internal register.
(22) [a], [b], [RÆP], [PÆR] : Coordinate conversion.
a. These keys convert the rectangular coordinate into the polar
coordinate and the polar coordinate into the rectangular
coordinate. The range units that have been set by the [DRG]
key follow.
b. Respective defined areas and accuracy are as shown in
behind chart however, the range of
θ
obtained by RÆP in
degree is as follows:
1st Quadrant 0°
≤ θ ≤
90°
2nd Quadrant 90°
≤ θ ≤
180°
3rd Quadrant
−
180°
≤ θ ≤ −
90°
4th Quadrant
−
90°
≤ θ ≤
0°
c. Input of 2 variable is performed by setting x or r pressing [a]
key and y or
θ
pressing [b] key.
d. The operation result of x or r is obtained in the display register
or by pressing [a] key and y or
θ
by pressing [b] key.
Input Data Result
a b a b
RÆP
(RectangularÆPolar)
x y r
θ
PÆR
(PolarÆRectangular)
r
θ
x y
(Ær, θ) r =
22
yx + , θ = tan
−1
y/x
(Æx, y) x = r cos
θ
, y = r sin
θ

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Learn how to use coordinate conversion features on a scientific calculator for rectangular to polar and polar to rectangular transformations with detailed explanations and key functions.

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