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Texas Instruments TI-84 User Manual

Page 173

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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)

Rn

=

R

n

N1

(1+M

N

KW

n

N1

)

Wn

=

W

n

N1

(1+GR

n

N1

N

D)