Texas Instruments TI-84 - Manual (Page 146)

Chapter 4: Parametric Graphing 143
ZOOM ZOOM ZOOM ZOOM
ZOOM operations in Par 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 T window variables ( Tmin , Tmax , and Tstep ) are only affected when you select
ZStandard . The VARS ZOOM secondary menu ZT/Z q items 1:ZTmin , 2:ZTmax , and
3:ZTstep are the zoom memory variables for Par graphing.
CALC CALC CALC CALC
CALC operations in Par graphing work the same as in Func graphing. The CALCULATE
menu items available in Par graphing are 1:value , 2:dy/dx , 3:dy/dt , and 4:dx/dt .