Casio CFX-9850G PLUS, User'S Manual & Technical Reference

Page: 152 / 486

124
u u
u u
u
To graph using polar coordinates (
r
=)
[Sketch] - [GRPH] - [r=]
You can graph functions that can be expressed in the format
r
=
f
(
θ
).
Example To graph
r
= 2 sin3
θ
Use the following View Window parameters.
Xmin = –3 Ymin = –2 T,
θ
min = 0
Xmax = 3 Ymax = 2 T,
θ
max =
π
Xscale = 1 Yscale = 1 T,
θ
pitch =
π ÷
36
1. In the set up screen, specify “ r
=
” for Func Type.
2. Specify “
Rad
” as the angle unit and then press
J
.
3. Input the polar coordinate expression (
r
=).
!4
(Sketch)
1
(Cls)
w
5
(GRPH)
2
(
r
=)
c s d v
4. Press
w
to draw the graph.
• You can draw graphs of the following built-in scientific functions.
• sin
θ
• cos
θ
• tan
θ
• sin
–1
θ
• cos
–1
θ
• tan
–1
θ
• sinh
θ
• cosh
θ
• tanh
θ
• sinh
–1
θ
• cosh
–1
θ
• tanh
–1
θ
•
θ
•
θ
2
• log
θ
• ln
θ
• 10
θ
•
e
θ
•
θ
–1
•
3
θ
View Window settings are made automatically for built-in graphs.
8 - 5
Drawing Graphs Manually