Texas Instruments -84 Plus, Manual Book

Page: 122 / 696

Chapter 3: Function Graphing 119
Zoom Cursor Zoom Cursor Zoom Cursor Zoom Cursor
When you select
1:ZBox
,
2:Zoom In
, or
3:Zoom Out
, the cursor on the graph becomes the
zoom cursor (
+
), a smaller version of the free-moving cursor (
+
).
ZBox ZBox ZBox ZBox
To define a new viewing window using
ZBox
, follow these steps.
1. Select
1:ZBox
from the
ZOOM
menu. The zoom cursor is displayed at the center of
the screen.
2. Move the zoom cursor to any spot you want to define as a corner of the box, and
then press
Í
. When you move the cursor away from the first defined corner, a
small, square dot indicates the spot.
3. Press
|
,
}
,
~
, or
†
. As you move the cursor, the sides of the box lengthen or
shorten proportionately on the screen.
Note:
To cancel
ZBox
before you press
Í
, press
‘
.
6: ZStandard
Sets the standard window variables.
7: ZTrig
Sets the built-in trig window variables.
8: ZInteger
Sets integer values on the X and Y axes.
9: ZoomStat
Sets the values for current stat lists.
0: ZoomFit
Fits YMin and YMax between XMin and XMax .
ZOOM MEMORY