<p>TI-89!!! I love this calculator so much, I named it Calvin. He sometimes has dates with my friend’s named Tiana. This is not insanity. This is a mark of true 89 awesomeness.</p>
<p>In all seriousness, the TI-89 is super easy to use and the most convient calculator I’ve ever had.</p>
<p>The Sharp EL-W516 is a calculator I use a lot and it is good for Calculus. However for about $5 more you can get the Casio fx-115ES which is really the ultimate in non-graphing, non-programmable scientific calculators at any price. The Integration function easily handles any single valued definite integral. My favorite function is the summation function which is great for confirming whether or not an infinite series is really converging or not. </p>
<p>I have HP, TI and Casio graphing calculators which can be useful in some Calculus applications. The multi-color Casio makes it a little easier to use than the other two. All three of these calculators are programmable which is a feature I rarely use since I have found programming, running, debugging, storage and retrieval of programs in the Casio CFX-9850GC, TI 83+ and HP-48G equally confusing and awkward and not really worth the effort.</p>
<p>Again, I wonder if anyone who so enthusiastically recommends the ti89 has ever used the hp50g.</p>
<p>I use an HP35s on RPN for pretty much everything, though I have an HP50g for the times when I want to graph (which is almost never). I’m so attached to HP and RPN (postfix notation) that if they went out of business, I would probably stop using calculators altogether.</p>
<p>General use: Ti-84+ (silver edition is nice)
Great all around calculator. A lot of capabilities, but not overly complicated.</p>
<p>Intense use: Ti- 89 titanium**
Damn near impossible to top this one… filled with features and capabilities others lack. Very useful in upper-level math (especially complicated calc II derivatives and integrals) but it definitely requires the investment of time to understand how to operate it. </p>
<p>** Ti - 89 is often specified as “not allowed” (ACT/SAT/etc. along w/ many college courses) because of its advanced features **</p>
<p>wow is TI-84 good enough for calc 1-3? That’s what I have</p>
<p>quote: "Again, I wonder if anyone who so enthusiastically recommends the ti89 has ever used the hp50g."quote </p>
<p>I have an HP48G which I bought in 1994 and still use daily. It is a fantastic calculator that seems like it will run forever. I liked it so much a few years later I bought over the internet a brand new HP49. I was a little worried because despite its price tag of $185 it seemed to be made from cheap materials and did not have the build quality of my 48G. My worst fears were realized when it turned out to be a real stinker. Within days after the limited warranty expired it failed completely. The HP service rep said it had suffered a catastrophic and permanent failure. Since it is in a plastic case it could not be dismantled, the case would have to be shattered to get to the internal components. He said my only alternative was to buy a new one for another $185 to which I replied there is not a chance in a million that I would buy an HP calculator again.</p>
<p>I have heard some good things about the HP50 but after my experience with the HP49<br>
I can not help but feel the HP48G was the last great calculator HP ever made I do not want to take the chance of getting stuck again if I buy an HP50.</p>
<p>From what I have read, the problems of 49 were fixed with 50. I have a 50G, but never even touched a 49. The build quality of the 50G is great, even feels stronger than a ti 89. It certainly seems heavier than the ti, which is good.</p>
<p>I’m probably dating myself, but I still use my HP-41 (a gift from Christmas 1984). Dynamite calculator, indestructable. I"ve used and like the HP-42-they are a little bit better than the 41 for programming. I’ve never used the TIs, but my kids have. The schools specified which calculator they wanted to use. </p>
<p>The 41 and 42 don’t graph, but I’ve never seen that as a shortcoming. If you don’t know what a pump curve or rainfall intensity curve means, or what they look like, then it doesn’t matter if you can graph it on your calculator.</p>
<p>I suspect that the TI fans probably never tried an HP. The RPN notation is quite intuitive once you get used to it (and it doesn’t take long).</p>
<p>I have an HP 50g that I love (I miss the RPN mode when I have to use other calculators). For tests, we’re generally not allowed to use calculators with user storage, so the Casio FX-115ES seems to be the best choice for tests (and cheap, too).</p>
<p>Hands down the TI89 is what you are looking for. Check this review
[Best</a> graphing calculator to get for Engineering | riskof radiation.com](<a href=“http://riskofradiation.com/instruments/best-graphing-calculator-for-engineering-is-the-ti-89-titanium/]Best”>http://riskofradiation.com/instruments/best-graphing-calculator-for-engineering-is-the-ti-89-titanium/)</p>
<p>I bought an hp-15c in … 1981. To this day I still use it regularly.</p>
<p>I bought a TI SR-10 in 1973 that I modified slightly be removing the corroded rechargeable battery and replacing it with standard AA batteries. I do not use it every day since it is somewhat limited in its capabilities compared to calculators available now but it still works perfectly.</p>
<p>The two best calculator choices for college engineering majors are the HP50g and the Ti-89.</p>
<p>The link below is a Top 10 Review of graphing calculators. The TI-84, at #1, is suitable for high school and maybe early-college. For junior/senior college calculus and beyond, you should have either #2 (HP50g) or #3 (TI-89), so spend the extra $20-$30 for the more powerful calculator and you won’t be disappointed.</p>
<p>I’ve used both and prefer the HP50g. Once I learned to use RPN (Reverse Polish Notation - It’s actually quite easy to learn), I found it to be the preferable method for solving problems on a calculator.</p>
<p>Graphing Calculator Reviews: [Graphing</a> Calculator Review 2012 - TopTenREVIEWS](<a href=“http://graphing-calculator-review.toptenreviews.com/]Graphing”>http://graphing-calculator-review.toptenreviews.com/)</p>
<p>You only have two choices the HP50 G and the Ti 89 Titanium. See a comparison here.
[TI89</a> vs HP50g graphing calculator | riskof radiation.com](<a href=“http://riskofradiation.com/instruments/ti89-vs-hp50g-graphing-calculator/]TI89”>http://riskofradiation.com/instruments/ti89-vs-hp50g-graphing-calculator/)</p>
<p>isn’t the nspire better than the 89? seems like a much better all around product</p>
<p>Gave my ti-89 to my sister, and bought the new N-spire. I sort of want the 89 back. It was way easier for me to control.</p>
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<p>I have a 50g, but yes–aesthetically the 48gII is far better–looks very elegant. I can’t speak to the durability, though. The 50g is, frankly, an ugly thing. But practicality uber alles. I bought my 50g in summer '09 and it’s still good as new. Your story with the 49 is very peculiar. And I can’t believe the price that you paid for it. $185? Really? Right now the 50g goes for $102 on amazon.</p>
<p>I’ll concede one thing I don’t like about HP calculators–the leather case. I much prefer the “slide-on” design of the TI, but using a TI calculator is too high a price to pay just to have that nicer case.</p>
<p>I’m surprised no one mentioned matlab yet…</p>
<p>My take on matlab is that it’s very functional, but the environment of it being on a regular computer and using a qwerty keyboard makes input awkward. The keyboard of a graphing calculator is much smoother to use.</p>
<p>Casio fx-260. Cheap and light with very good ergonomics. Also 100% solar-powered.</p>
<p>Yeah, it doesn’t do everything…but that’s true of any calculator compared to a computer.</p>