TI-83 Plus Sequence Graphing 198
These are the variables (given values are in parentheses):
R = number of rabbits
M = rabbit population growth rate without foxes (.05)
K = rabbit population death rate with foxes (.001)
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
n
N1(1+MNKW
n
N1)
W
n
=W
n
N1(1+GR
n
N1ND)
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.