Operation Manual

12 Getting Started

8200GETS.DOC TI-82, Getting Started, English Bob Fedorisko Revised: 02/09/01 8:38 AM Printed:

02/09/01 12:35 PM Page 12 of 14

Zooming on the Graph

You can magnify the viewing WINDOW around a specific location using the

ZOOM instructions to help identify maximums, minimums, roots, and

intersections of functions.

1. Press

to display the

ZOOM

menu.

This menu is typical of TI

82 menus. To select

an item, you may either press the number to the

left of the item, or you may press

†

until the

item number is highlighted and then press

2. To zoom in, press

. The graph is displayed

again. The cursor has changed to indicate that

you are using a

ZOOM

instruction.

3. Use

}

, and

†

to position the cursor near

the maximum value on the function and press

The new viewing

WINDOW

is displayed. It has

been adjusted in both the

and

directions by

factors of 4, the values for

ZOOM

factors.

4. Press

to display the new

WINDOW

settings.