Casio fx-9750G PLUS - Manual (Page 152)

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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 =)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