<p>hey, i don't know what i did, but my answers in TI 89 don't come up in fractions (it used to, so i must have changed something).. so how do i change it back?</p>
<p>also rami:
what do you mean by "89... easy to read"?</p>
<p>The 89 has pretty print and a higher resolution display. I'm guessing that's what he's referring to. As far as the fraction thing, go into the menu (I think that's what it's called. I don't have my 89 in front of me right now) and then change wherever you have "approximate" selected to "exact."</p>
<p>Hrmm - I don't have TI89. . I did pretty well on the conic section part of the Barron's book and it went out well . . . I don't know if it's worth it to get one now..</p>
<p>yeah, when I said TI89 is easier to read, I was talking about higher resolution display and pretty print.
BTW, Patrick, I'm a girl, not a guy :)</p>
<p>is the 89 worth buying over the 84 plus?</p>
<p>p.s. what can the 89 do that the 84 plus or 83 cant?</p>
<p>Sorry, rami! I just sort of default to "he" as my pronoun of choice whenever I don't know the gender/sex (I can never remember which word is right). Unless the user name is "sallysue" or something kind of like that, it gets a he. :p</p>
<p>To the people wondering about the merits of the 89 there are a few points to that. The first being if you aren't already good at math and can do things manually I DO NOT recommend an 89. People who use it to avoid learning the math make me angry. The 89 as a crutch will only hurt you long term. Second, I don't think it's worth $150 just for the IIC. You need a graphing calculator, but not an 89. I would bet that more 800s are gotten with an 83 than an 89.
As far as the 84 plus, I'm guessing it doesn't have pretty print, a CAS, or 3-d graphing among other things. Whether those features are worth the extra money or hassle to learn to use them is up to you.</p>
<p>hey i'm taking math iic on 1/22. let's make an official thread after the test...</p>
<p>April or May? I think you're going to take it in May, because they don't offer the SAT's in April, unfortunately. I wish they offered the SAT over the summer, now THAT would be nice study time.</p>
<p>For a prep book, I'd highly recommend Barron's. I used Barron's, although I didn't read it and memorize it like the psalms (although I'm not religous either, but anyways)...really good book. In particular the tests soundly prepare you. Actually, they pretty much overprepare you, so once you get used to them, you'll be well suited to take the actual IIC. </p>
<p>50 questions, you can get 5 wrong, 6 tops, isn't it? For an 800? I started cram-prepping shortly before the test, but I really should have started earlier. In the end, I did get an 800, but this is probably because I'd already finished calc and didn't really need to 'learn' anything, just review and some extension on materials my school didn't cover, such as parametrics, polar, etc.</p>
<p>The first time I took a practice test on the Barron's book, two weeks before the test mind you, I hit the hour mark at #30-35 or something around that. It improved with each test, but on the actual test day, I got through all of them, 'skipping' the last one because I had two minutes, panicked, and couldn't come up with an answer.</p>
<p>By the way, for a calculator, I used the Ti-83+ Silver, had five-six programs that I used...although not on every question. If you use the Ti-89, you'd better get it soon and know it through and through, because the one thing you'll need besides a graphing calculator is familiarity with it. The Ti-83 was fine for me. A few things I wasn't sure I knew quite as much, such as the whole polar equations bit... I entered the equations for those into one of my programs but only used it about once. The actual test is not nearly as bad as the book.</p>
<p>If you do a lot of math, constantly, without ceasing, and live, breathe, and sleep precalculus, and run around waving little flags with math equations on them, you should do fine.</p>
<p>On a bit of a tangent, I was using an 83+ Silver Edition for about a year as basically a four-function calculator plus the graphing. I didn't discover that it could do deriviatives and integrals (at a point) until about 2 weeks before the AB exam. Needless to say, I used that to my advantage quite a lot. I didn't use any of the add-on programs on it, though, for the AB or the IIC.</p>
<p>For derivatives and integrals, the 89 is vastly superior due to it's symbolic manipulation ability.</p>
<p><a href="at%20a%20point">quote="birdofprey425"</a>
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<p>Vastly superior the Ti-89 may be but the fact that the 83 only gives derivatives and integrals to you at a point means that it is more useful for checking your answers, which means you already have to know your ****. But I greatly appreciated the backup.</p>
<p>I agree that the Ti-89 would be more useful as a crutch.</p>
<p>hey guys i know i am going to sound like an idiot but...
can you type in equations and then save them as a text document on a ti-83? if so, how? I'm thinking of using my friends for the iic this saturday. I haven't had math since calculus 1 last year, so i'm kind of having a tough time memorizing all my formulas.</p>
<p>Don't memorize all your formulas, derive them. ;)</p>
<p>To actually answer your question, you could type the formulas into a program (press <prgm>, it's fairly self-explanatory), and then go back and edit the program to look at them. It won't work as an actual program but it will save the text as you type it in.</prgm></p>
<p>If you only need to do definite integrals and derivatives evaluated at a point, then yep, you are right. However for indefinate integrals or just general derivatives, the 83 won't help. So we're both right, you a little more so than me. ;)</p>
<p>If you already have TI 89, that's great. Practice a lot with your calculator, and ace the exam. However, if you don't, unless you have more than 5 months till exam, don't even bother switching calculator to 89. The best calculator is the one that you feel most familiar with. I switched to 89 last year about a month before AP CALC test and I didn't know how to use my calculator, so I had to borrow a 83 from my teacher. TI 89 is VERY different from TI 83 or 84. So never ever switch your calculator at the last minute.</p>
<p>It is not humanly possible to find another SAT II Subject test that's as easy as Math IIC in getting an 800. One piece of advice: don't make too many stupid mistakes. I made some (about 2 - 3), but still pulled out that sacred 800. As for practice tests, I only used Kaplan, didn't spend that much time on it, and got 770 on their test. I think they're pretty accurate as long as the test's material is concerned.</p>
<p>what are derivatives?</p>
<p>dont wry, thats not on math sat ii.</p>
<p>"If you already have TI 89, that's great. Practice a lot with your calculator, and ace the exam. However, if you don't, unless you have more than 5 months till exam, don't even bother switching calculator to 89. The best calculator is the one that you feel most familiar with. I switched to 89 last year about a month before AP CALC test and I didn't know how to use my calculator, so I had to borrow a 83 from my teacher. TI 89 is VERY different from TI 83 or 84. So never ever switch your calculator at the last minute."</p>
<p>Not so true. I got my 89 2 weeks ago and am planning to use it for the IIC (along with an 84, if thats possible. This is a point of contention among CCers). If you use the handbook and look up anything you can think of, youll be fine. And I just realized, at least in my case, the stuff you would not know how to do on an 89 is mostly stuff that you couldnt do on an 83 anyway.</p>