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3-12 Function Graphing
8303FUNC.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 12:16 PM Printed: 02/19/01 1:35
PM Page 12 of 28
8303FUNC.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 12:16 PM Printed: 02/19/01 1:35
PM Page 12 of 28
To store a value, which can be an expression, to a window
variable, begin on a blank line and follow these steps.
1. Enter the value you want to store.
2. Press
¿
.
3. Press
to display the
VARS
menu.
4. Select
1:Window to display the Func window variables
(
X/Y
secondary menu).
•
Press
~
to display the
Par and Pol window variables
(
T/
q
secondary menu).
•
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
-
83 stores the
value to the window variable and displays the value.
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.
Storing to a
Window Variable
from the Home
Screen or a
Program
@
X and
@
Y