Texas Instruments TITANIUM TI-89 - Manual (Page 100)

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5. Set the x and y Window variables to
appropriate values for this example.
Press 0 D 50 D 10 D 0 D 6000 D 1000
6. Display the Graph screen.
Press 8 %
7. Select Trace . Move the cursor to trace
year by year. How many years (nc) does it
take the number of trees (yc) to stabilize?
Trace begins at nc=0.
nc is the number of years.
xc = nc since n is plotted on the x axis.
yc = u1(n), the number of trees at
year n.
Press … B and A as necessary
Steps and keystrokes Display
By default, sequences
use the Square
display style.