<p>My sister is taking Algebra 2 this year and I am going off to college for engineering. So for the first time in our lives we both need graphing calculators. There are two options 1) Get a new Ti-84 for my sister or 2) give my Ti-84 to my sister and get a Ti-89 for my self. Is the price of the Ti-89 worth it over a Ti-84?</p>
<p>Don’t give her any graphing calculators. She is going to depend on it more and more and that will lead to her doom. I speak from experience. I have a HP 50G. She will neglect actually understanding math.</p>
<p>I used the Ti-84 since Algebra 2 and I turned out fine, plus they use it in class, like some calculator techniques are taught.</p>
<p>Many high schools require graphing calculators for math courses. I would definitely recommend getting a TI-89 for yourself.</p>
<p>If you end up choosing Ti-89 you might as well get a Ti-Nspire instead. Does everything a Ti-89 does but it is easier to use</p>
<p>Get a TI-NSpire CAS CX. It does everything an 89 can do, it’s cheaper, it’s in color, it does 3d graphing, differential equations, etc. It came out a month ago…unfortunately so many people seem to be unaware of it and are getting the 89 and 84 (I’ve owned 84, 89, and Nspire and the Nspire is so much better) which feels to me like people are buying old technology at new technology prices.</p>
<p>For engineering yes buy a ti-89. I’m going to engineering too. Almost everyone I’ve talked to uses one. The ti-89 is really powerful as an undergrad tool.</p>
<p>MAKE SURE YOU LEARN HOW TO DO THE MATH BY HAND/SIMPLE CALCULATOR. THE CALCULATOR IS JUST FOR CONVENIENCE (well not always). UNDERSTAND THE MATH FIRST.</p>
<p>That’s what I didn’t do at first. I took the all mighty ti-89 for granted and I got a couple of B’s and C’s. When I realized my fault I had to go back and painfully learn it by hand.</p>
<p>^That’s what I’ve seen, the people I know with TI-89’s usually end up not actually learning the material and do poorly.</p>
<p>I would suggest taking the TI-89. It is really useful for checking our work on integrals and derivatives as long as you are still making sure to work out all problems by hand. Also, when you take physics, you will often have to enter complex calculations, and the TI-89 does a better job of formatting input and remembering formulas you previously typed.</p>
<p>Get the HP 50G. It is better than the 89 and plus, RPN FTW.
<a href=“http://www.eldus.com/2165089.page[/url]”>http://www.eldus.com/2165089.page</a>
<a href=“Which calculator? Hp 50G vs Ti89 Titanium”>Which calculator? Hp 50G vs Ti89 Titanium;
The HP 50G can have expanded memory up to 2 gigs using SD card.</p>
<p>Just wondering. What’s the standard at your college? What do most people accept and use?</p>
<p>I’m a college frosh so idk.
I know that ti-83/83/89 are acceptable almost everywhere. Do most college professors allow you to use Nspire or HP 50G?</p>
<p>If 89 is allowed, Nspire is allowed – they’re no different. Again, to people that are suggesting getting an 89…get an Nspire CAS CX …it’s much easier to do calculus on it, does 3d graphing which helps for Calc 3, does dif eq’s, etc etc. And it’s cheaper than 89…silly to get an 89 for any reason.</p>
<p>(Nspire CAS is also allowed on SAT/ACT/AP)</p>
<p>To those who said TI-89, is there any reason to get it over the TI-nspire CAS CX?</p>
<p>I’m going to guess 99% of people that say 89 doesn’t know the Nspire exists…I certainly didn’t. The CAS CX only came out of June this year.</p>
<p>I had an 89 from grade 8 through junior year of college, and got the Nspire last month and I love it. The only reason I knew about is because my 89 broke and I was trying to find the cheapest place to get a new one, and I found out about the Nspire and that it’s even cheaper than the 89 (I paid <140 pre-tax/shipping for it).</p>
<p>How is the battery life of the nspire? I know my HP 50G has been good for more than half a year.</p>
<p>Haven’t had to charge it in over a month. Obviously haven’t been using it as much in the summer, although I’m still doing some work with it. Still seems to be 90%+.</p>
<p>(Can be charged either via usb or wall adapter…guessing 3-4 times a year is sufficient for most people, but obviously not a big deal to charge).</p>