Texas Instruments TI-83 PLUS - Manual (Page 177)

TI-83 Plus Polar Graphing 174
screen, the coordinate values at the bottom of the screen continue to
change appropriately.
Quick Zoom is available in Pol graphing mode; panning is not (Chapter 3).
Moving the Trace Cursor to Any Valid q Value
To move the trace cursor to any valid q value on the current function,
enter the number. When you enter the first digit, a q = prompt and the
number you entered are displayed in the bottom-left corner of the
screen. You can enter an expression at the
q = prompt. The value must
be valid for the current viewing window. When you complete the entry,
press
Í to move the cursor.
ZOOM
ZOOM
operations in Pol graphing work the same as in Func graphing.
Only the X ( Xmin , Xmax , and Xscl ) and Y ( Ymin , Ymax , and Yscl ) window
variables are affected.
The q window variables ( q min , q max , and q step ) are not affected, except
when you select ZStandard . The
VARS ZOOM
secondary menu
ZT/Z q
items
4:Z q min , 5:Z q max , and 6:Z q step are zoom memory variables for Pol
graphing.