Texas Instruments TI-83 PLUS - Manual (Page 172)

TI-83 Plus Polar Graphing 169
In this editor, you can enter and display up to six polar equations, r 1
through r 6
. Each is defined in terms of the independent variable q .
Selecting Graph Styles
The icons to the left of r 1
through r 6
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.