Texas Instruments TI-89 Titanium User Manual page 314

Using Zooms to Explore a Graph
The „
toolbar menu has several tools that let you adjust the viewing window. You
Zoom
can also save a viewing window for later use.
Overview of the Zoom Menu
Press „ from the Y= Editor, Window Editor, or Graph screen.
If you select a
Note:
automatically displays the Graph screen.
Zoom Tool Description
ZoomBox Lets you draw a box and zoom in on that box.
ZoomIn, Lets you select a point and zoom in or out by an amount
ZoomOut defined by SetFactors.
ZoomDec
Sets
ZoomSqr Adjusts Window variables so that a square or circle is
shown in correct proportion (instead of a rectangle or
ellipse).
Basic Function Graphing
Procedures for using
,
ZoomOut ZoomStd
are given later in this section.
For more information about the other items,
refer to the Technical Reference module.
tool from the Y=Editor or Window Editor, the TI-89 Titanium
Zoom
@ x and @ y to .1, and centers the origin.
,
ZoomBox ZoomIn
, , and
Memory SetFactors
,
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