<p>I'm looking to buy a new calculator, the TI nspire CX CAS to be specific, but I'm a little nervous that it will take me forever to learn how to use it. I currently use a TI-82, which is a bit old school. Now that I'm done with standardized testing and the whole prohibited calculator situation, I would like to upgrade. So, do you guys recommend this calculator? I know for sure I want CAS, but there are also other TI models with this system. Any thoughts? If you have this calculator, do you regret your purchase?</p>
<p>Lot of college classes ban the CAS for tests, just an FYI. Check with your school’s classes. </p>
<p>I have a plain CX; it’s stupidly difficult to use. For every 2 things it makes easier, it makes 5 things harder. I’m getting an 84 Plus so I’ll just use two calculators. You can get 84s with a light-up screen and the nice templates for things like integrals and exponents, so that’s what I’d get.</p>
<p>I was thinking I’d get the nspire because of the added functionalities specifically for chemistry (I plan to major in chemistry, biochemistry, or maybe even chemical engineering- not sure yet). Of course the CAS would be handy as long as it’s allowed; I’m not sure where to find info on if the CAS version is allowed X college, and I’m not even sure where I’m going yet. My high school doesn’t care which calculator I use, but I want a new one before next year for my calc class. It would also be nice to have a different one for my engineering summer program. </p>
<p>I was also kind of considering the TI-89, but if the CAS is a problem where I end up going for college, then the 89 will also be prohibited.</p>
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<p>I guess I’m not exactly sure what to get, that’s why I’m asking.</p>
<p>You could just get the CAS and see. There’s good deals if you buy a used one so you wouldn’t be out a whole lot if you can’t use it.</p>
<p>My college only allows scientific calculators on chemistry exams. The same is true at University of California - Irvine and presumably other institutions. </p>
<p>Before college download a free graphing calculator app and Wolfram Alpha. If you need a better calculator the professor will say so in the syllabus. </p>