Calculator User Manual

Getting Started 11
The viewing window defines the portion of the coordinate plane that appears in
the display. The values of the Window variables determine the size of the
viewing window. You can view and change these values.
1. Press
p
to display the Window variables edit
screen. You can view and edit the values of the
Window variables here.
The standard Window variables define the viewing
window as shown.
XMIN
,
XMAX
,
YMIN
, and
YMAX
define the boundaries of the display.
XSCL
and
YSCL
define the distance between tick marks on the
X
and
Y
axes.
XMAX
YMIN
YMAX
XSCL
YSCL
XMIN
2. Press
0
Í
to define
XMIN
.
3. You can enter expressions to define values in the
window editor. Press
8.5
¥
2
.
4. Press
Í
. The expression is evaluated, and
4.25
is
stored in
XMAX
. Press
Í
to accept
XSCL
as
1
.
5. Press
0
Í
40
Í
10
Í
to define the
Y
Window variables.
Changing the Viewing Window