4-4 Parametric Graphing
8304PARA.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 12:17 PM Printed: 02/19/01 1:36
PM Page 4 of 8
The steps for defining a parametric graph are similar to the
steps for defining a function graph. Chapter 4 assumes that
you are familiar with Chapter 3: Function Graphing.
Chapter 4 details aspects of parametric graphing that differ
from function graphing.
To display the mode screen, press z. To graph
parametric equations, you must select Par graphing mode
before you enter window variables and before you enter
the components of parametric equations.
After selecting Par graphing mode, press o to display the
parametric Y= editor.
In this editor, you can display and enter both the X and Y
components of up to six equations, X1T and Y1T through X6T
and Y6T. Each is defined in terms of the independent
variable T. A common application of parametric graphs is
graphing equations over time.
The icons to the left of X1T through X6T represent the graph
style of each parametric equation (Chapter 3). The default
in Par mode is ç (line), which connects plotted points. Line,
è (thick), ë (path), ì (animate), and í (dot) styles are
available for parametric graphing.
Defining and Displaying Parametric GraphsTI-83 Graphing
Mode Similarities
Setting
Parametric
Graphing Mode
Displaying the
Parametric Y=
Editor
Selecting a
Graph Style