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TI-83 Plus Activities 572
Graphing Cobweb Attractors
Problem
Using
Web
format, you can identify points with attracting and repelling
behavior in sequence graphing.
Procedure
1. Press
z
. Select
Seq
and the default mode settings. Press
y
.
. Select
Web
format and the default format settings.
2. Press
o
. Clear all functions and turn off all stat plots. Enter the
sequence that corresponds to the expression Y = K X(1
N
X).
u(
n
)=Ku(
n
N
1)(1
N
u(
n
N
1))
u(
n
Min)=.01
3. Press
y
5
to return to the home screen, and then store
2.9
to
K
.
4. Press
p
. Set the window variables.
n
Min=0 Xmin=0 Ymin=
M
.26
n
Max=10 Xmax=1 Ymax=1.1
PlotStart=1 Xscl=1 Yscl=1
PlotStep=1