Texas TI-73 EXPLORER User Manual

     Chapter 9: Function Graphing

7309ENG.DOC   CH 9 Function Graphing, English   Julie Hewlett   Revised: 07/29/98 12:14 PM   Printed: 05/19/99

9:01 AM   Page 184 of 24

2. Select the 

Zoom In 

operation

for the function graph.

(

3. Move the cursor to the

point that you want as the

center of the new viewing

window.

" ! $ #

4. Replot the graph.

b

 works exactly the same way as 

. The

calculator zooms out automatically around the center point.

 

ZStandard   (

 

 is one of the more popular zoom commands because

many function graphs look good when graphed according to

the standard (default) 

 values: 

M

, 

,

, 

M

, 

, 

.

If you select the 

 operation, either from the Graph

screen or another screen, all selected functions are

immediately replotted according to these standard 

values.

 

ZInteger   (

 

 requires you first to select a new center point. The

calculator then replots the graph immediately using the

adjusted 

 values which set 

@

 and 

@

 to 1, and 

 and

 to 10.

Select the center point (as you would do for 

 and

) by moving the cursor with the cursor keys, and then

pressing b. Press ) to view the new coordinate

values.

You want to

zoom in on

this side of the

graph.

The cursor point

becomes the center

 of the new window.