Texas Instruments TI-89 用户手册
Activities
764
Setting Up a Parametric Graph and Table
Setting Up a Parametric Graph and Table
Setting Up a Parametric Graph and Table
Setting Up a Parametric Graph and Table
Perform the following steps to study the flight of a hit baseball that has an initial velocity
of 95 feet per second and an initial angle of 32 degrees.
of 95 feet per second and an initial angle of 32 degrees.
1. Set the modes for
Page 1
as shown in this
screen.
2. Set the modes for
Page 2
as shown in this
screen.
3. In the
Y= Editor
on the left side, enter the
equation for the distance of the ball at
time
time
t
for
xt1(t)
.
xt1(t)=95
†
t
†
cos(32
¡
)
Note:
Press
2 “ to obtain the degree
symbol.
4. In the
Y= Editor
, enter the equation for the
height of the ball at time t for
yt1(t)
.
yt1(t)=
L
16
†
t^2+95
†
t
†
sin(32
¡
)