Texas Instruments TI-30XS MultiView Scientific Calculator

I purchased 3 of these. within a week 1 of using them one of them has been working on and off. so i called the number provided in my receipt by Amazon. (DigiKey) They informed me that they have nothing to do with this sale. They are not sure why their number is being provided! They have been trying for a long time to get this resolved with Amazon with no solution. I tried to process a return thru Amazon site and it is not allowed. How can I get this item replaced/refunded?

Good calculator, includes table functionality (so you can enter a single y= function and get values to visualize the graph) At NYU Poly, all the math courses require/allow only the TI 30 (non-pro) variants for the tests for all math, physics, and comp sci classes. So I get it, this version over say the IIS for MultiVew. MultiView offers some improvements to the UI, including handling irrational numbers a lot better (like leaving √2 as √2) [which is great until you have to hit the menu and change it to classic view mode because you need to calculate that the square root of 2 is 1.414...] As I mentioned, the table functionality is really nice even if I didnt basically have to buy this calculator my view is the following: if youre going to spend ~$10 (even $15) on a calculator, get this one. It is hands down the best non-graphing scientific calculator Ive ever used. What about a more powerful calculator? I do still like the Z80 based calculators better [the TI 83(+), and TI 84+(silver edition)] and the TI 89 (titanium edition) is probably the best though most smart places dont allow it for tests (the TI 92(+)/TI Voyage 200 has a slightly higher resolution screen but the full QWERTY disqualifies it for many tests, while the TI 89 (Ti Ed) can be used on the SAT [not the ACT though]) I havent used a regular TI 84+, any of the TI 92 based systems (92, 92+, and Voyage 200), the older models based on the Z80 that I havent mentioned (TI 71, TI 81, TI 82, TI 85, TI 86), or the TI-Nspire series, but the Nspires seem to have been a whole fiasco and I dont understand why youre getting that at that point instead of say an android phone. (I also havent used some of their other ranges of calculators like the nonprogrammable graphing or scientific models) [Ive only used the TI 89 and TI 89 Ti Ed via an emulator, beyond like five seconds of holding someone elses] What about non-TI calculators like a Casio? Dont buy a Casio calculator. I actually own a Casio scientific or graphing calculator, not only is it worse than the equivalent TI, its weird, and it has a poor adoption rate so getting around how some things work differently is difficult (eg in highschool algebra, how to use combinations and permutations, the teacher will be just as clueless as you with which menus to use and such), and we nerds WILL mock you. Now, a slight retraction of my anti-Casio stance: four function calculators. Brand doesnt matter, get a Casio or a no name or whatever, its all pretty much the same (pay attention to 8 vs 9 vs 10 digit displays but other than that, the physical size [they make huge ones and tiny ones, plus the awesome Casio calculator watch. For serious calculators TI is the standard, with good reason.

The item was meritorious! Delivery was exceptionally swift. Packaging was noble.

I have been using this calculator for years in high school and in college. It has come in handy many times throughout my time learning.

I need it for scholl Live it

Has been a great calculator to use for my college math class. Very simple to use and easy to figure out.

Great..easy to use…Thank u.

It does exactly what it should do.

Great buy

Thank you for everything