Texas Instruments TI-89 User Manual page 15

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