To delete programs on your calculator, first press
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and
[MEM]. A menu should appear and scroll down to
2:Mem Mgmt/Del.... Next, scroll down to
7:Prgm. Now, a list of all the programs on your calculator should appear. Just press
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until you get to the program you want to delete. Once the arrow is pointing at the program you want to delete, press
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. A menu should appear asking you whether you want to delete this program? Choose "Yes" if you want to delete, and "No" if you don't. This method is a lot safer than the TI-83 method because it ask you if you're sure you want to delete the program. This way, you don't make any mistakes like your hand slipping or something.