Texas Instruments TI-84 - Manual (Page 110)

Chapter 3: Function Graphing 107
• Press
~ ~ to display the
Seq window variables ( U/V/W secondary menu).
5. Select the window variable to which you want to store a value. The name of the
variable is pasted to the current cursor location.
6. Press
Í to complete the instruction.
When the instruction is executed, the TI-84 Plus stores the value to the window variable
and displays the value.
@
X and X and X and X and
@
Y Y Y 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.
You can store values to @ X and @ Y . If you do, Xmax and Ymax are calculated from @ X ,
Xmin , @
Y , and Ymin .
∆X
Xmax Xmin –
( )
94
--------------------------------------- =
∆Y
Ymax Ymin –
( )
62
--------------------------------------- =