Defining The Viewing Window - Texas Instruments TI-80 Manual Book

Defining the Viewing Window

The Window variables determine the boundaries and other attributes of the
viewing window. The Window variables are shared by all graphing modes.
The Viewing
Window
Checking the
Viewing Window
Changing a
Window Variable
Value
The viewing window of the TI-80 is the portion of the
coordinate plane defined by
The distance between tick marks is defined by
axis and YSCL for the
YMAX
XSCL
XMIN
YSCL
YMIN
Press ) to display the current Window variable values.
The values shown here are the default values.
To change a Window variable value:
1. Press 8 to move to the Window variable you want to
change.
2. To enter a real value (which can be an expression), you
may do any of the following:
¦
Position the cursor, and then make the changes.
¦
Press M to clear the value, and then enter a new
value.
¦
Begin entering a new value. The original value is cleared
automatically when you begin typing.
3. Press ¸, 8, or 7. If you entered an expression, it is
evaluated. The new value is stored.
must be less than
XMIN
, or you will get an error message when you press
YMAX
,. To turn off the tick marks, set
XMIN , XMAX
Y axis.
XMAX
, and
XMAX YMIN
Function Graphing 4-9
, YMIN , and YMAX
XSCL for the
must be less than
and
XSCL=0 YSCL=0
.
X
.