Casio fx-350D - Page 43

0
''DEG'' 2~Bsoa1 _ _____ ,__. -I
y P (x )
X
~ l811 ..... __ ,_. 1_3_2_o_so_8___.I
(y)
8-8 Rect~ngular to polar co-ordinates
•
conversion
Fo rmu la:
r = ✓ x
2
+ y2
0 = tan _, L ( - 180° < 0~180 °)
X
Ex.)
F ind the lengt h r and angl e 0 in radian w hen the point
P is shown as x = 1 and y = v3 in the rect angular co -
or din at es .
- 119 - ''°'