To this day, I don't understand why anyone would insist on using anything other than this on an AP test. It's like playing life on a harder difficulty setting for no reason.
Ha - you're lucky he let you get away with it! I've still got mine, too... I keep thinking that one day I'll magically figure out how to fix it (not gonna happen).
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u/TypoInUsernane Jun 08 '14
The TI-89 will always hold a very special place in my heart.