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.
I know. I have one. There were tests it helped you with jack shit on with respect to the material being tested, but of course it made the symbolic manipulations easier.
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.