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uTo 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 =)csdv
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