Exploring Graphs With The Zoom Instructions - Texas Instruments TI-82 STATS 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
ZOO MEMORY
M
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
on the graph becomes the zoom cursor (
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, repeat
ZBox
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 '.
, press '.
ZBox
and axes.
X Y
and axes.
X Y
and
XMin XMax
, the cursor
3:Zoom Out
), a smaller version of
+
, follow these
ZBox
.