Texas Instruments TI-89 User Manual

TI-89 / TI-92 Plus / Voyage™ 200 PLT Cabri Geometry App 11
To undo the last fully constructed object or operation, press
TI-89:
2Š
TI-92 Plus / Voyage™ 200 PLT:
Š
and select
D:Undo
.
Learning the Basics
(continued)
Using Undo
Hint:
Press
¥
Z.

Texas Instruments TI-89 Specifications

General

Display size (HxV)	100 x 160 mm
Memory type	639K FLASH ROM, 188K bytes RAM
Compatible operating systems	Operating System 2.09
Battery type	AAA