Texas Instruments TITANIUM TI-89 User Manual page 108

Steps and keystrokes
8. Return to the
enter two initial conditions as a list:
yi1={10,20}
Press 8 # C ¸ 2 [ 10 b 20
2 \ ¸
9. Return to the Graph screen.
Press 8 %
Previews
and change
Y= Editor
Display
to
yi1
108