Texas Instruments TI-89 ユーザーズマニュアル

Sequence Graphing

355

Exploring the Graph

From the Graph screen, you can:

•

Display the coordinates of any pixel by using the free-moving cursor, or of a plotted
point by tracing a sequence.

•

Use the

„

Zoom

toolbar menu to zoom in or out on a portion of the graph.

•

Use the

‡

Math

toolbar menu to evaluate a sequence. Only

1:Value

is available for

sequences.

•

Plot sequences on

Time

(the default),

Web

, or

Custom

axes.

Note:

You can also evaluate a sequence while tracing. Simply enter the n value directly

from the keyboard.

5. Define the viewing window (

8 $).

„

Zoom

also changes the viewing

window.

6. Change the graph format if necessary.

— or —

8 Í

7. Graph the selected equations

(

8 %).