TI -86 用户手册

06TOOLS.DOC   TI-86, Chap 6, US English   Bob Fedorisko   Revised: 02/13/01 2:23 PM   Printed: 02/13/01 3:01 PM   Page 95 of 22

06TOOLS.DOC   TI-86, Chap 6, US English   Bob Fedorisko   Revised: 02/13/01 2:23 PM   Printed: 02/13/01 3:01 PM   Page 95 of 22

♦ 

To store all current zoom-window variable values simultaneously as a user-defined
custom zoom feature, select 

 from the 

GRAPH

 

ZOOM

 menu.

♦ 

To execute a user-defined custom zoom, which resets the graph screen to the stored
zoom-window variables, select 

 from the 

GRAPH

 

ZOOM

 menu.

Using 

 in these graphing modes:

 Stores to these zoom-window variables:

, 

, 

, and 

 graphing modes

, 

, 

, 

, 

, and 

 graphing mode only

, 

, and 

 graphing mode only

, 

, and 

 graphing mode only

 

, 

, 

, and 

When you select a 

GRAPH

 

MATH

 operation, Smart Graph displays the current graph with the

trace cursor. To perform the 

GRAPH

MATH

operation, press # and $ to move to the function.

When a 

GRAPH

 

MATH

 menu operation prompts you to specify left bound, right bound, and

guess, the accuracy of the values you specify will affect the length of time the TI

-86 spends

calculating the answer; the better the guess, the shorter the calculation time.

You can select all zoom-
window variables from the

VARS WIND

 screen in any

graph mode.

You also can enter the
variable characters
individually.

The zoom-window variables
resume their standard default
values when you reset
defaults.