<p>Hey so Im intrested in buying a new calculator. Right now Ive got an TI84 thats gone through a lot of wear and tear. Its got this water dot on the screen that makes other people completely incapable of using it, its just a nusance for me. I was intrested in buying a 89 does anyone have any opinions on the 89.</p>
<p>Also, I know most classes dont let you use calculators on test and stuff. But the ones that do, is there certain ones not allowed and if so is a 89 one?</p>
<p>Not sure about which courses won’t let you use them. But the 89 titanium is awesome. There is a pretty steep learning curve to using it, but it will do around 95% of the problems you’ll encounter from basic math to calc 2. Maybe onward but I don’t have any experience past that. The ti-nspire will do the same as well.</p>
<p>i’d recommend just getting an 83 off craigslist for like $30.</p>
<p>If you’re not an engineering student then you will not need or probably ever be able to fully utilize a ti-89. If you are an engineering student then you’ll definitely want a Ti-89.</p>
<p>At the moment im a prospective physics and chemistry duel major</p>
<p>Ok yeah physics is also heavily calculus based, any major that involves a lot of calculus you’ll definitely want a Ti-89 for your upper level courses</p>
<p>I used a TI 89 from pre algebra all the way through College. I think they are the most awesome calculator ever. You should spend some time getting to know it (the TI 89 for dummies worked for me)</p>
<p>Go through a begining algebra book using the TI 89 (they can be found at your local library, school, or amazon for next to nothing… since you dont need a modern version) This way you get used to the CAS (computer algebra system)</p>
<p>Remember to go to [Welcome</a> - ticalc.org](<a href=“http://www.ticalc.org/]Welcome”>http://www.ticalc.org/) and download programs for any class you can imagine (math, science, engi, anything)</p>
<p>I personally did not get the voyager just because it looks too much like a computer, i did not want to not be allowed to use the calculator. I only had one professor ever comment on it, i said that a brother had loaned it to me because I was too poor to buy one and was having a hard time using it… he said he would help me if i needed it.</p>
<p>How similar is the interface of the TI-89 to the TI-84? I know the interface of an 84 very well.</p>
<p>It’s not. lol</p>
<p>The 89 will take some time getting used to… it is well worth it however.</p>
<p>If you need a calculator to do math, your doing it wrong.</p>
<p>
This is only somewhat true. In Calculus 1-3 and DiffEQ (and other courses in the Math department) you don’t need a calculator. You most likely won’t even be allowed to use one.</p>
<p>However, you definitely need a calculator for non-Math department classes like chemistry, physics, statistics, etc. In fact, I took Stats for Engineers this past semester. The professor told us that doing the problems using the formulas (by hand) was a waste of time, and that we should use our calculators on exams, since they would be impossible to complete in time without them.</p>