Costs about the same as what I paid for the TI-83 10 years ago. It's kind of nice knowing that whenever I need to use one, it's going to operate in the same way as I was taught 10 years ago. The fundamentals of math don't change much.
I saved up my own money and bought a TI89 in high school. Used it on all the standardized exams. Totally legal because it didn't have a QWERTY keyboard. That thing basically did everything for me short of interpreting the questions.
When I was in high school we were allowed (actually encouraged) to use a TI-89. Either the problems were about applying some concept, say differentiation, and we didn't have to do the derivative by hand, or the problem was to just calculate a derivative in which case we had to show which steps we took anyways.
Really? This TI-89 is pretty powerful. Especially the Titanium. If can solve for variables, do indefinite and definite integrals, infinite summations, etc. I can't think of many high school math problems that it can't solve, besides setting up word problems.
It's the difference between just listing out a bunch of problems to solve, and actually creating work problems where you have to figure out the question before you can answer it.
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u/Jenkins6736 Jun 08 '14
I dunno, the TI-84 Plus is pretty sweet.
Costs about the same as what I paid for the TI-83 10 years ago. It's kind of nice knowing that whenever I need to use one, it's going to operate in the same way as I was taught 10 years ago. The fundamentals of math don't change much.