Casio fx-350D Manual 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
Formu la:
r = ✓x 2 +
y2
0 = tan _,
L ( - 180° < 0~180 °)
X
Ex.)
Find the length r and angle
0
in radian w hen the point
P is shown as x
=
1 and y
=
v3
in t he rect angular co -
ordinat es .
- 119 -
''°'