Chapter 4: Parametric Graphing 92
3. Press o. Press
30 „ ™ 25 y ; 1 (to
select ¡) ¤ Í to define
X1T in terms of T.
4. Press
30 „ ˜ 25 y ; 1 ¤ ¹ t
^
1 (to select n/d) 9.8 ~ 2 ~ „ ¡ Í to
define
Y1T.
The vertical component vector is defined by
X2T
and
Y2T.
5. Press
0 Í to define X2T.
6. Press t a † Í Í to define
Y2T.
The horizontal component vector is defined by
X3T
and
Y3T.
7. Press t a Í Í to define
X3T.
8. Press
0 Í to define Y3T.
9. Press | | } Í to change the graph style to
è for
X3T and Y3T. Press } Í Í to
change the graph style to ë for
X2T and Y2T. Press
} Í Í to change the graph style to ë for
X1T and Y1T. (These keystrokes assume that all
graph styles were set to ç originally.)
10. Press p. Enter these values for the window
variables.
Tmin=0 Xmin=L10 Ymin=L5
Tmax=5 Xmax=100 Ymax=15
Tstep=.1 Xscl=50 Yscl=10
Note
: You can check all WINDOW variables,
including
@X and @Y by pressing 1:Window.
11. Press s. The plotting action simultaneously
shows the ball in flight and the vertical and
horizontal component vectors of the motion.
Note: To simulate the ball flying through the air, set
graph style to ì (animate) for
X1T and Y1T.
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