Getting Started: Polar Rose - Texas Instruments TI-83 Manual Book

Getting Started: Polar Rose

Getting Started is a fast-paced introduction. Read the chapter for details.
The polar equation R=Asin(Bq) graphs a rose. Graph the rose for A=8 and
B=2.5, and then explore the appearance of the rose for other values of A and B.
1. Press z to display the mode screen.
Press † † † ~ ~ Í to select
graphing mode. Select the defaults (the
options on the left) for the other mode
settings.
2. Press o to display the polar
˜
Press
8 2.5
.
r
1
3. Press q
to select
6
graph the equation in the standard viewing
window. The graph shows only five petals
of the rose, and the rose does not appear
to be symmetrical. This is because the
standard window sets
the window, rather than the pixels, as
square.
4. Press p to display the window
variables. Press †
value of
qmax
5. Press q
to select
5
the graph.
6. Repeat steps 2 through 5 with new values
for the variables
equation
r =Asin(Bq)
1
values affect the graph.
5-2 Polar Graphing
Y=
„ ¤ Í to define
6:ZStandard
qmax=2p and defines
y [
] to increase the
4
p
to 4p.
5:ZSquare
and in the polar
A B
. Observe how the new
Pol
editor.
and
and plot