This particular model has been a very useful tool for the various college trig, stats, and finite math courses I've taken over the past couple years. Its two-dimensional graphing,, matrices, exponents/roots, & probability-crunching capabilities turn many otherwise daunting mathematics problems into less of a chore.
The TI-83+ can also store various math programs. I've even discovered that there're a few game programs, including bowling and a few fairly simple word puzzles. Of course, you're gonna either need to punch in the codes manually, or download `em via link from another TI-83+ that has them. Mind you, these little diversions are a far cry from Nintendo Game Boy, but it does give you something to do when you're pretending to be paying attention to the instructor's class lecture. The program function is also a good place to punch in and store various formulas for those times you need a bit of an edge during those midterm exams, nudge nudge wink wink. Just remember: if you get caught, I disavow all knowledge! The only real problem I have with this machine's programming features is the deletion of old/unnecessary programs. The contents can be expunged rather quickly with the help of the Clear and Delete keys, but removing/renaming the program titles can be a frustrating task.
Although it's a bit bulky to be considered convenient, I also use this machine for everyday number-crunching (balancing the checkbook and such). The large screen is quite handy in these cases; it keeps track of the last few simple calculations you've made, as well as the results. So just in case you messed up somewhere, you can look back on the previous problem right above your present turns of numerals and see what you might've done wrong.
`LateGet more detail about Texas Instruments TI-83 Plus Graphing Calculator.
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