<p>I have been learning to use my TI-89 for the upcoming Jan 22 IIC, but I still dunno if I'll be comfortable using it on the test, so I'm trying to weigh pros and cons. What are some of the most useful functions of the TI-89 that are not on a TI-83 and really help on the IIC? If I can learn those I think it might be worthwhile. In other words, what types of problems become a lot easier with an 89? Also, where can I get good programs for the IIC? (since I can't transfer my old ones from my 83) Thank you!!!!!</p>
<p>I can't see a reason why the 89 would be any better than the 83 on the IIC. I used the 83 and got an 800. w/e</p>
<p>I dunno I just hear lots of people talk about the cool functions on TI-89 that do a lot of the work for you and save time. Anyone know of good ones for the IIC?</p>
<p>search the forum man. there are a trillion other threads about this</p>
<p>Bring and use both. The TI-89 is wonderful and handy, and I use it for harder stuff, but I still use my 83 for simpler things.</p>
<p>I am using both on the January exam. My plan is to use the TI89 for its solving functions and algebra and the TI83 for programs like triangle solvers. The 83 has a better program interface.
I made a thread with help with calculators and programs: <a href="http://talk.collegeconfidential.com/showthread.php?t=25684%5B/url%5D">http://talk.collegeconfidential.com/showthread.php?t=25684</a></p>
<p>woa I didn't know you could use both! so collegeboard doesn't care at all?</p>
<p>you cant use both</p>
<p>you can bring 2 and use the xtra as backup</p>
<p>I used TI-89 just because it has the "solver." I used it alot on the test, and definitely worth using.</p>
<p>wait adjlad how do you know. I looked on CBs website. They did say you can use a backup but didnt prohibit using 2. Are you speaking from experience or what you have "heard". If you can link please do so.</p>
<p><a href="http://www.collegeboard.com/student/testing/sat/testday/calc.html%5B/url%5D">http://www.collegeboard.com/student/testing/sat/testday/calc.html</a>
If it was not allowed they would probably say something. I should email them.</p>
<p>your allowed to use two. my friend did and the proctor states that you may use two before the test.</p>
<p>thank you kind sir for alleviating my fears.</p>
<p>1.How can u find out the period in radians of a graph?
2.How can u find out the fourth term of (a-2b)^12?</p>
<p>Thanks a bunch!</p>
<ol>
<li><p>Google it if it's not in your book and you don't remember it.</p></li>
<li><p>I only vaguely remember how to do it without an 89, but if you have one, use the expand feature, type it in, and it'll give you the complete answer.</p></li>
</ol>
<p>Quick question: At my school, we didn't really use a whole lot of graphing calculators, but we did use TI - 83's once in a while. We used that for Intermediate Calculus last year, but we performed REALLY simple problems on the calculator. With that said, it's obvious that I don't have much experience with graphing calculators. I guess my question to you is: Should I purchase a TI-89 and learn how to use it? (I have a feeling that it may be hard to use.) Or, should I just purchase a TI - 83 and go with it? Any replies are appreciated. Thanks!</p>
<p>It might vary at different test centers, but ones I've been to would not allow having two calculators on your desk - you could only keep and extra calc on the floor as a back-up.</p>
<p>This book might come in handy (when released):
<a href="http://www.amazon.com/exec/obidos/tg/detail/-/0764589121/qid=1121969579/sr=8-1/ref=pd_bbs_1/104-6282743-6879101?v=glance&s=books&n=507846%5B/url%5D">http://www.amazon.com/exec/obidos/tg/detail/-/0764589121/qid=1121969579/sr=8-1/ref=pd_bbs_1/104-6282743-6879101?v=glance&s=books&n=507846</a>
(previous books on TI's by this author are pretty informative).</p>
<p>I don't have time now to look it up, but you could find one of my posts that has a link to the Gilmar books on TI-89.</p>
<p>By College Board rules, you CAN use two calculators. If your proctor won't let you, complain until they check the rules.</p>
<p>Hello,
TI customer support form doesn't work.
I would like to know how to find the period of a graph in radians with the calculator.For example y=2sin2x or 1/2cos(1/2x-pi/3)
Thank you so much !!</p>
<p>Does anyone know what percent of the exercises from math 2c you can solve only using the calculator?</p>
<p>ACTaker, you wouldn't find those period's with the calculator only. All you have to know is that the period in radians is 2pi/B. B is the number after the sin and in front of the x.
So for y = 2sin2x, the period would be 2pi/2 = pi
For y = 0.5cos(1/2x-pi/3), the period would be 2pi/(1/2) = 4 pi</p>
<p>You shouldn't take the test expecting to solve problems using only the calculator. You need to know how to do most of them using your math knowledge first.</p>