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Texas Instruments Titanium TI-89 User Manual

Texas Instruments Titanium TI-89
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Operating the Calculator 146
Turning the Calculator Off
Turning the Calculator OffTurning the Calculator Off
Turning the Calculator Off
You can use either of the following keys to turn off your graphing calculator.
Note: ® is the second function of the ´ key.
APD (Automatic Power Down)
APD (Automatic Power Down)APD (Automatic Power Down)
APD (Automatic Power Down)
After several minutes without any activity, the calculator turns itself off automatically. This
feature is called APD.
When you press ´, the calculator 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.
Press: Description
2 ®
(press 2 and
then press
®)
Settings and memory contents are retained by the
Constant Memory™ feature. However:
You cannot use 2 ® if an error message is
displayed.
When you turn the calculator on again, it displays
either the Home screen or the Apps desktop
(regardless of the last application you used).
8 ®
(press
8 and then
press
®)
Similar to
2 ® except:
You can use 8 ® if an error message is
displayed.
When you turn the calculator on again, it will be
exactly as you left it.

Table of Contents

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Texas Instruments Titanium TI-89 Specifications

General IconGeneral
Display TypeLCD
Display Resolution160 x 100 pixels
Memory188 KB RAM, 2.7 MB Flash ROM
TypeGraphing Calculator
DisplayMonochrome
ProcessorMotorola 68000
Processor Speed12 MHz
Power Source4 AAA batteries
ConnectivityUSB
ProgrammingTI-BASIC, Assembly
Operating SystemAMS (Advanced Mathematics Software)

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