Defining And Displaying A Parametric Graph - TI -82 Manual Book

Defining and Displaying a Parametric Graph

Parametric equations consist of an X component and a Y component, each
expressed in terms of the same independent variable T. They are often used to
graph equations over time. Up to six pairs of parametric equations can be defined
and graphed at a time.
Defining a Parametric Graph
The steps for defining a parametric graph are the same as those for defining
a function graph. Differences are noted below.
Setting Parametric Graph Modes
Press z to display the
you must select
components of parametric equations. Also, you usually should select
Connected
Displaying Parametric Equations
After selecting
screen.
On this screen, you display and enter both
six equations, each defined in terms of
Defining Parametric Equations
Follow the same procedures as for
components that define a new parametric equation.
¦
You must define both the
¦
The independent variable in each component is
rather than pressing ƒ ã
MODE
MODE
Par before you enter
to obtain a more meaningful
, press o to display the parametric
Par MODE
defines the independent variable as
settings. To graph parametric equations,
WINDOW
Par graph.
X and
T .
graphing to enter the two
Func
and components in a pair.
X Y
ä, to enter the parametric variable
T
T
Parametric Graphing 4-3
variables or enter the
Y= edit
Y components. TI.82 has
. You may press „,
T
.)
T . ( Par