Exploring Graphs With The Zoom Instructions - Texas Instruments TI-83 Manual Book

Exploring Graphs with the ZOOM Instructions

ZOOM Menu
Zoom Cursor
ZBox
3-20 Function Graphing
To display the
ZOOM
viewing window of the graph quickly in several ways. All
instructions are accessible from programs.
ZOOM
ZOOM MEMORY
Draws a box to define the viewing window.
1: ZBox
Magnifies the graph around the cursor.
2: Zoom In
Views more of a graph around the cursor.
3: Zoom Out
Sets
4: ZDecimal
Sets equal-size pixels on the
5: ZSquare
Sets the standard window variables.
6: ZStandard
Sets the built-in trig window variables.
7: ZTrig
Sets integer values on the
8: ZInteger
Sets the values for current stat lists.
9: ZoomStat
Fits
0: ZoomFit
When you select
1:ZBox
cursor on the graph becomes the zoom cursor (
smaller version of the free-moving cursor (
To define a new viewing window using
steps.
1. Select from the
1:ZBox
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.
ZBox
Note: To cancel
4. When you have defined the box, press Í to replot
the graph.
To use to define another box within the new graph,
ZBox
repeat steps 2 through 4. To cancel
menu, press q. You can adjust the
and to 0.1.
X Y
@ @
and between
YMin YMax
, , or
2:Zoom In
menu. The zoom cursor is
ZOOM
before you press Í, press '.
ZBox
and axes.
X Y
and axes.
X Y
and
XMin XMax
, the
3:Zoom Out
), a
+
).
+
, follow these
ZBox
, press '.
.