<p>I was just wondering if i'd need a graphics calculator from texas instrument at princeton. in new zealand, we used a casio one (basic model). if i do, which model should i get? and do they allow us to use these calculators in exams? (math/phy etc)</p>
<p>get the texas instruments one. different classes have different rules, but so far, what i've found is you cannot use them on math exams, but you can use them for physics</p>
<p>Do you guys reccomend a TI-89? I have a TI-83 Plus right now, but I'm considering switching over to a TI-89 (Titanium :)) -- my only concern is that I would be too unfamiliar with how the calculator works. I am an engineering-intended student, though it's not completely for sure.</p>
<p>I have a TI-89 and I love it =) (yes, I got it before the Titanium's were out, and I haven't switched over yet - I d/l-ed the extra Titanium stuff from a friend anyway). It was a bit hard switching over from the TI-83 Plus, but it doesn't take too long to learn the new interface, the TI-89's a lot more powerful and useful for advanced mathematics.</p>
<p>TI-89 is much nicer than the 83+, and probably the majority of engineers use one. It takes a little time to get used to, so don't buy one right before a final and expect to be able to use it, but it's really pretty similar to the 83+ (think Windows 95 vs. Windows XP). If you're planning on doing calculus, differential equations, matrices etc. it's a big help.</p>
<p>Hi Skysongx - D just bought a TI 84 plus. Her question - is a TI 89 a necessity or does it just have more bells and whistles. Is a TI 89 more helpful for differential equations?</p>
<p>i dont know what the TI-84 does, as I only had an 83+ and an 89... but the 89 is amazing, and makes classes sooo much easier. It will solve equations (both regular and differential) as well as calculate integrals and derivatives.All these functions are very useful for chem and physics classes</p>
<p>Thanks guys, I think that I will probably get a TI-89...hopefully it won't be too difficult to get used to it.</p>
<p>OhMother - I don't currently use a TI-89 (yet :p), but I do know that it has more than "bells and whistles" in comparison to the TI-83. On the other hand, a TI-84 Plus is virtually the same as a TI-83, except that it has more memory and is MUCH prettier :). There's no need to adjust to a TI-84 from a TI-83, while the TI-89 might take some time, as everything is a little bit different. In Calc BC last year, most of my friends used TI-89s and I can definitely say that I got frustrated quite often because my calculator was much slower and could not carry out many of the functions that theirs could (even something as simple as expressing the result in root form). And my teacher did say that if you was set on engineering, you would definitely want to invest in one.</p>
<p>i just brought a ti-89 titanium however, the calculator is very slow when graphing. how can i fix this problem? Is there a way to increase the memory?</p>