Texas Instruments TI-86 - Manual (Page 137)

Chapter 9: Parametric Graphing
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09PARA.DOC TI-86, Chap 9, US English Bob Fedorisko Revised: 02/13/01 2:27 PM Printed: 02/13/01 3:02 PM Page 125 of 8 09PARA.DOC TI-86, Chap 9, US English Bob Fedorisko Revised: 02/13/01 2:27 PM Printed: 02/13/01 3:02 PM Page 125 of 8
ᕦ Enter these window variable values.
tMin=0 xMin= L 20 yMin= L 5
tMax=5 xMax=100 yMax=15
tStep=.1 xScl=50 yScl=10
- f 0 # 5 #
` 1 # a 20 #
100 # 50 # a 5
# 15 # 10
ᕧ Set SimulG and AxesOff graphing formats,
so the path of the ball and the vectors will
be plotted simultaneously on a clear graph
screen.
/ ( # # #
" b # # "
b
ᕨ Plot the graph. The plotting action
simultaneously shows the ball in flight and
the vertical and horizontal component
vectors of the motion.
*
ᕩ Trace the graph to obtain numerical results.
Tracing begins at tMin and traces the path
of the ball over time. The value displayed
for
x is distance; y is height; t is time.
) "
Defining a Parametric Graph
The steps for defining a parametric graph are similar to the steps for defining a function
graph. This chapter assumes that you are familiar with Chapter 5: Function Graphing and
Chapter 6: Graph Tools. This chapter details those aspects of parametric graphing that
differ from function graphing.
To simulate the ball in flight,
change the graph style of
xt1
à yt1 to Á (animate).