Texas Instruments TI-84 Plus - Page 173

Chapter 6: Sequence Graphing 170
1. Press o in Seq mode to display the sequence Y= editor. Define the sequences and
initial values for R
n
and W
n
as shown below. Enter the sequence R
n
as u(n) and enter
the sequence W
n
as v(n).
2. Press y . Í to select
Time axes format.
W = number of foxes
G = fox population growth rate with rabbits (.0002)
D = fox population death rate without rabbits (.03)
n = time (in months)
R
n
=
R
nN1
(1+MNKW
nN1
)
W
n
=
W
nN1
(1+GR
nN1
ND)