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Defining a parametric graph – Texas Instruments TI-86 User Manual

Page 137

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Chapter 9: Parametric Graphing

125

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).