Texas Instruments TI-83 PLUS - Manual (Page 127)

TI-83 Plus Function Graphing 124
When the instruction is executed, the TI-83 Plus stores the value to the
window variable and displays the value.
@
X and
@
Y
The variables
@ X and
@ Y (items 8 and 9 on the
VARS
( 1:Window )
X/Y
secondary menu) define the distance from the center of one pixel to the
center of any adjacent pixel on a graph (graphing accuracy).
@ X and
@ Y
are calculated from Xmin , Xmax , Ymin , and Ymax when you display a
graph.
@ X =
(Xmax N Xmin)
94
@ Y =
(Ymax N Ymin)
62
You can store values to @ X and @ Y . If you do, Xmax and Ymax are
calculated from @ X , Xmin , @ Y , and Ymin .