Texas Instruments TI-83 PLUS - Manual (Page 575)

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( nMin)=.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.
nMin=0 Xmin=0 Ymin= M .26
nMax=10 Xmax=1 Ymax=1.1
PlotStart=1 Xscl=1 Yscl=1
PlotStep=1