Operation Manual

1-2 Operating the TI

8201OPER.DOC TI-82, Chapter 1, English Bob Fedorisko Revised: 02/09/01 12:18 PM Printed:

02/09/01 12:35 PM Page 2 of 22

Turning the TI-82 On and Off

To turn the TI

82 on, press the

key. To turn it off, press and release

and

then press

. After about five minutes without any activity, APD

(Automatic

Power Down™) turns the TI

82 off automatically.

Turning the Calculator On

Press

to turn the TI

82 on.

If you pressed

OFF

to turn the calculator off, the display shows

the Home screen as it was when you last used it, and errors are cleared.

If APD turned the calculator off, the TI

82, including the display, cursor,

and any error conditions, will be exactly as you left it.

Turning the Calculator Off

Press and release

and then press

OFF

to turn the TI

82 off.

Any error condition is cleared.

All settings and memory contents are retained by Constant Memory

APD™ (Automatic Power Down™)

To prolong the life of the batteries, APD turns the TI

82 off automatically

after several minutes without any activity. When you press

, the TI

will be exactly as you left it.

The display, cursor, and any error conditions are exactly as you left

them.

All settings and memory contents are retained by Constant Memory.

Batteries

The TI

82 uses four AAA alkaline batteries and has a user-replaceable back-

up lithium battery. To replace batteries without losing any information

stored in memory, follow the directions on page B