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Activities 65
6. Change K to 3.44 and trace the graph to show a cobweb with two
attractors.
7. Change K to 3.54 and trace the graph to show a cobweb with four
attractors.
Using a Program to Guess the Coefficients
Setting Up the Program
This program graphs the function A sin(BX) with random integer
coefficients between 1 and 10. Try to guess the coefficients and graph
your guess as C sin(DX). The program continues until your guess is
correct.
Program
PROGRAM:GUESS
:PlotsOff :Func
:FnOff :Radian
:ClrHome
:"Asin(BX)"!Y1
:"Csin(DX)"!Y2
Define equations.
:GraphStyle(1,1)
:GraphStyle(2,5)
Set line and path graph styles.
:FnOff 2
:randInt(1,10)!A
:randInt(1,10)!B
:0!C:0!D
Initialize coefficients.