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TI-83 Plus Polar Graphing 169
In this editor, you can enter and display up to six polar equations,
r1
through
r6
. Each is defined in terms of the independent variable
q
.
Selecting Graph Styles
The icons to the left of
r1
through
r6
represent the graph style of each
polar equation (Chapter 3). The default in
Pol
graphing mode is
ç
(line),
which connects plotted points. Line,
è
(thick),
ë
(path),
ì
(animate), and
í
(dot) styles are available for polar graphing.
Defining and Editing Polar Equations
To define or edit a polar equation, follow the steps in Chapter 3 for
defining a function or editing a function. The independent variable in a
polar equation is
q
. In
Pol
graphing mode, you can enter the polar
variable
q
in either of two ways.
•
Press
„
.
•
Press
ƒ
ãqä
.
Selecting and Deselecting Polar Equations
The TI-83 Plus graphs only the selected polar equations. In the
Y=
editor,
a polar equation is selected when the
=
sign is highlighted. You may
select any or all of the equations.