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(1NX).
u(
n
)=Ku(
n
N1)(1Nu(
n
N1))
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