Ha. Ti calculators are great for playing games on during boring school classes.

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i have a ti-83 plus blue and it is sweet. i think the ti-84 plus are more difficult but thats probably because i'm not familiar with it.

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I owned a TI-83 before and the 2 are not so different. TI-84 has some preloaded apps, extra flash memory, extra processor power etc and some extra functions. It isn't really much different in how you do calculations etc. It also has a smoother look, with better button layout etc. Nothing more complicated about it.

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I've got a TI-89 too, without it i would be so dead. Im an engineering student and one of our motto's are "TI-89 or DIE" ... oK so its not really a moto, but whatever. I have a couple of friends that have reverse polish HP's. There suposed to be better, and reverse polish is suposed to be quicker too.. if you wanna learn it. But i know the 89 so..... 89 OR DIE!

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