Texas Instruments TI-89 ユーザーズマニュアル

Sequence Graphing

372

3. On the Window Editor (

8 $), set the Window variables.

5. On the Y= Editor, set

Axes = CUSTOM

X Axis = u1

, and

Y Axis = u2

6. On the Window Editor (

8 $), set the Window variables.

nmin=0
nmax=400
plotstrt=1
plotstep=1

xmin=0
xmax=400
xscl=100

ymin=0
ymax=300
yscl=100

4. Graph the sequence

(

8 %).

Note:

Use

…

to individually

trace the number of rabbits

u1(n)

and foxes

u2(n)

over time

(n)

nmin=0
nmax=400
plotstrt=1
plotstep=1

xmin=84
xmax=237
xscl=50

ymin=25
ymax=75
yscl=10

7. Regraph the sequence.

Note:

Use

… to trace both the number of

rabbits (xc) and foxes (yc) over the cycle
of 400 generations.

u(n)

u1(n)

u2(n)

u1(n)