Texas Instruments TI-84 - Manual (Page 154)

Chapter 5: Polar Graphing 151
Moving the Trace Cursor to Any Valid Theta Value Moving the Trace Cursor to Any Valid Theta Value Moving the Trace Cursor to Any Valid Theta Value Moving the Trace Cursor to Any Valid Theta 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 ZOOM 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.
CALC CALC CALC CALC
CALC operations in Pol graphing work the same as in Func graphing. The CALCULATE
menu items available in Pol graphing are 1:value , 2:dy/dx , and 3:dr/d q.