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Quick help on a TI-89 (how do I delete programs?)

NewSc2

Diamond Member
I borrowed a Ti-89 from my roommate to use for my chem final which is in 4 hours.. =\, but anyways the prof doesn't allow any of us to come in with stored Chem-related programs on our calculators.. so I was wondering:

How do I check up on the TI-89 to make sure that there are no programs on the calculator, and if there are how do I delete them? (just curious, I probably won't delete them as he doesn't take any Chem)

Edit: I've been checking through catalog and apps, and I don't have any clue whether I'm looking in the right area; I'm a Ti-83 kinda guy but I lost my calc =\
 
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