Texas Instruments TI-89 Titanium User Manual page 88

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