Citizen SR-135N Manual De Instrucciones página 9

[SHIFT]
[SHIFT]
(21) [X ↔ Y] : Exchange key.
Used to exchange the displayed number with the
contents of an internal register.
(22) [a], [b], [R → P], [P → R] : 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 R → P in
degree is as follows:
1st Quadrant
2nd Quadrant
3rd Quadrant
4th Quadrant
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.
R → P
(Rectangular → Polar)
P → R
(Polar → Rectangular)
( → r,θ) r =
2 2
+
x y ,θ= tan
( → x, y) x = r cos θ , y = r sin θ
SR135_English_090326.rtf
2009/3/26
Key input display
÷
[2] [ ] [3] [=] 0.666666666
FIX
[5] 0.66667
[ ]
SCI
FIX
6.66667-01
[ ]
SCI
FIX
[ • ] 6.6666666-01
[ ]
SCI
0°≤ θ ≤ 90°
90°≤ θ ≤ 180°
–180°≤ θ ≤–90°
–90°≤ θ ≤ 0°
Input Data Result
a b a
x y r
r x
θ
–1
y/x
-
E8 -
SIZE : 140x75mm
b
θ
y
SCALE 2:1