Texas Instruments TITANIUM TI-89 - Manual (Page 96)

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Polar Graphing Polar Graphing Polar Graphing Polar Graphing
The graph of the polar equation r1(q) = A sin Bq forms the shape of a rose. Graph the
rose for A=8 and B=2.5. Then explore the appearance of the rose for other values of A
and B.
Steps and keystrokes Display
1. Display the MODE dialog box. For Graph
mode, select POLAR . For Angle mode,
select RADIAN .
Press 3 B 3 D D D B 1 ¸
2. Display and clear the Y= Editor . Then
define the polar equation r1(q) = A sin Bq.
Enter 8 and 2.5 for A and B, respectively.
Press 8 # , 8 ¸ ¸ 8 2 W
2.5 8 Ï d ¸