Texas Instruments TI-89 사용자 설명서

Basic Function Graphing

 325

Using Zooms to Explore a Graph

Using Zooms to Explore a Graph

Using Zooms to Explore a Graph

Using Zooms to Explore a Graph

The 

„ 

 toolbar menu has several tools that let you adjust the viewing window. You 

can also save a viewing window for later use.

Overview of the Zoom Menu

Overview of the Zoom Menu

Overview of the Zoom Menu

Overview of the Zoom Menu

Press 

„ from the Y= Editor, Window Editor, or Graph screen.

 If you select a 

 tool from the Y=Editor or Window Editor, the TI-89 Titanium 

automatically displays the Graph screen.

Procedures for using 

, 

, 

, 

, 

, and 

 

are given later in this section. 

For more information about the other items, 
refer to the Technical Reference module.

Lets you draw a box and zoom in on that box.

,

Lets you select a point and zoom in or out by an amount 
defined by SetFactors.

Sets 

@

x and 

@

y to .1, and centers the origin.

Adjusts Window variables so that a square or circle is 
shown in correct proportion (instead of a rectangle or 
ellipse).