Texas Instruments TI-83 PLUS - Manual (Page 174)

TI-83 Plus Polar Graphing 171
Setting the Graph Format
To display the current graph format settings, press y . . Chapter
3 describes the format settings in detail. The other graphing modes
share these format settings.
Displaying a Graph
When you press s , the TI-83 Plus plots the selected polar
equations. It evaluates R for each value of q (from q min to q max in
intervals of q step ) and then plots each point. The window variables define
the viewing window.
As the graph is plotted, X , Y , R , and q are updated.
Smart Graph applies to polar graphs (Chapter 3).
Window Variables and Y . VARS Menus
You can perform these actions from the home screen or a program.
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Access functions by using the name of the equation as a variable.