Monday, October 13, 2008

TI-30XS Multiview Calculator




TI-30XS Multiview Calculator
From Texas Instruments







Customer Reviews

Easy to use5
I am impressed by the tactile response of the keyboard. I'm stunned by the features available for the price. (Years ago I agonized between buying a TI calculator that determined square root or an air conditioner. It was hot in my apartment and I had to derive square roots manually.) I especially liked the 4 line display as opposed to the Casio FX-115ES. I have found the ability to retrace more than forty calculations to be very handy too.

Extremely capable despite the low price5
My work involves a lot of exchange rates and foreign currency conversions. Really I was looking for a calculator I could program. Enter the exchange rate (which vary from day to day), other conversions like the factor from lbs to kilos. But time was short and a shop with the more expensive programmable calculators meant a special trip into town.

Here in Australia Officeworks (a sort of stationary Home Depot warehouse) have a very liberal return policy (7 days if you're not happy). So on this basis on a Friday night I bought a TI-30XB which is the battery version of teh TI=#)XS with a very attractive bright green in place of where the blue is on the 30XS.

This calculator has the abilty to store 6 constants x,y,z,a,b,c. So in my case I have 2.20468 stored as "x" (this converts lbs to kilos), AUD/USD exchange rate as "y"

For my work the mathview and relatively large screen are excellent. The calculator turns itself off automatically after a few mins if you're not using it. But if you turn it back on, you can scroll back miles if you wish and see all your old calcuations. Plus if you add 2+2 for example you on the next line down use that answer (ans) to do another calc.

awesome for a scientific calculator!4
This calculator is really great. A nice upgrade on the regular TI-30XIIS. I hate the <> button because it's where the "+" button should go. But if you just need a basic scientific calculator, or need to do some basic statistics, this calculator is perfect. Not nearly as awesome as the TI83 or TI89, but when you're not allowed to use those calculators for whatever reason this new calculator is way cool! MultiView rocks and so does the pretty math type!

While not strictly programmable I've used the data view (there's a data button to access this) to set up a table showing conversions from USD lb to AUD kg.. one of my main conversions. You can change costs in the first column and they reflect in the 2nd.

I'm trying to go digital here and away from printed Excel pages with conversions etc. Since getting this calculator, all the other calculators in the office are gathering dust. The two features above have me equally won.

For my applications this calculator although not small does the job. Over time we will see if we need a more sophisticated one but at the moment this is working beautifully.


Product Description

All the familiar capabilities of current TI scientific calculators plus a host of powerful enhancements. Designed with unique features that allow you to enter more than one calculation, compare results and explore patterns, all on the same screen. Scroll through previous entries and investigate critical patterns as well as viewing and pasting previous entries or answers into a new calculation. Quickly view fractions and decimals in alternate forms. "Toggle" the answer with one button to see outcomes in different representations, including changing answers between the exact form of fractions, pi terms and square root expressions, where possible, into decimal approximation format. Dual Power (solar and battery) Enter and view calculations in common Math Notation via the MATHPRINT mode, including symbolic pi, stacked fractions, exponents and exact square roots. Up to 4 lines of Display - Ability to enter more than one calculation, compare results and explore patterns, all on the same screen

Product Details

  • Color: Teal
  • Brand: Texas Instruments
  • Model: 30XSMV/BK
  • Number of items: 1
  • Dimensions: 3.00 pounds

More Reviews : Best Graphing Calculator

Sunday, October 12, 2008

Ti-nspire Cas Graphing Calculator




Ti-nspire Cas Graphing Calc
From Texas Instruments







Customer Reviews

TI...Did you forget to include something with my Nspire CAS?3
I'm basically saisfied with the product,but can't begin to discribe how poorly written and incomplete the documentation that accompanied it is. Case in point, my TI 83 plus came with a approximately 500 page manual. In contrast,the much more complex Nspire arrived with a 134 page guide. Can't wait for other publications on this calculator to hit bookstore shelves!

TI-Nspire CAS -- A Product-in-Progress2
I probably would have given this product three stars, but I feel that I must balance some of the overly generous grades given by other reviewers. I do not believe that a product that merely works merits a five star rating.

The Nspire CAS has the hardware potential to be a quantum upgrade to the aging TI-89, which is based upon late 1980's processor technology. And yet, at the time this review is being written, the TI-89 is a generally more powerful and easy-to-use programmable calculator than the Nspire CAS.

The built-in software of the TI-89 is very mature, and has much more programming capability than the Nspire CAS. This enables it to run thousands of free user-supplied programs, which can be readily downloaded into the '89 from the internet (via a PC) using only software freely available from TI. The Nspire CAS, by contrast, has no "free" connectivity to the PC or internet. Even if it had this, it cannot run programs written for the '89 due to the lack of many programming features, like input/output and menus.

Possibly TI will remedy the deficiencies in the Nspire CAS programming capability in time, but one should not purchase a product that might be upgraded at some indefinite time when a product that already has the needed features is available right now.

I believe that TI is aware of the foregoing and other deficiencies in the Nspire CAS (many mentioned by other reviewers here). That's why they've priced the Nspire CAS about the same as the TI-89 Titanium, despite the Nspire's superior processor (potentially 3x faster execution), massively larger (20x) user memory capability, and somewhat better display.

In the end, it's the software that does the work, whether on a calculator or a full-fledged computer. The TI-89 has proven to be an enduring example of superb hardware/software integration and value engineering, whereas the Nspire CAS, mostly due to immature software, is a beta product masquerading as a production release.

I am hopeful that the TI Nspire CAS will eventually supercede the TI-89. Given software capability that is merely the equal to that available with the TI-89, the Nspire CAS would today be the superior value proposition. Alas, that's not yet the case.

Product Description

The TI-Nspire CAS handheld and computer software has all the functionality of TI-Nspire technology plus built-in CAS (Computer Algebra System) capabilities. Explore, evaluate and simplify expressions, numeric problems and variables symbolically. Experience all the functionality of TI-Nspire technology plus built-in CAS capabilities, which provides the ability to explore, evaluate and simplify expressions, numeric problems and variables symbolically. The TI-Nspire CAS handheld does not include the snap-in TI-84 Plus Keypad, which is compatible exclusively with the TI-Nspire handheld. White box.

More Reviews : Graphing Calculator

Wednesday, October 8, 2008

TI-84 Plus School Pack Reviews



TI-84 Plus School Pack

From Texas Instruments






Product Description

MODEL- TI84PLUSTKYEL

VENDOR- TEXAS INSTRUMENTS

FEATURES- TI84 Plus Graphics Calculator- Teachers Kit, Yellow Teacher Pack includes (10) TI84PLUS calculators, each with a bright, easy-to-spot "school bus yellow" back cover and slide case. In addition, each units faceplate is inscribed with the words "School Property". Also includes (10) USB cables, (10) unit-to-unit cables and manuals; (40) AAA batteries; (1) product CD, poster and transparency. With the TI-84 Plus, all students can now share their work by connecting their TI-84 Plus to any TI presentation tools for the whole class to see, fostering a collaborative learning environment. Plus, a built-in USB port makes data transfer to your computer and between handhelds easier than ever. The TI-84 Plus handheld is fully loaded with convenient features and accessories, including a kickstand slide case, compatibility with TI presentation tools on every unit and more!

* Electronically upgradeable graphing handheld allows you to have the most up-to-date functionality and software applications (Apps).

* 2.5 times the processor speed of the TI-83 Plus.

* TI Connectivity Cable included.

* TI Connectivity Cable and TI Connect software allow information to be transferred to and from a computer and printed or stored on disk.

* 480 KB FLASH ROM memory for data archive and storage of Apps.

* 24KB of available RAM memory.

* USB port for computer connectivity, unit-to-unit communication with TI-84 Plus and TI-84 Plus Silver Edition graphing handhelds, and more.

* I/O port for communication with other TI products.

* Internal Clock with date and time display.

* Included Apps: Cabri Jr. CBL/CBR

Sunday, October 5, 2008

TI-30X IIS 2-Line Scientific Calculator Texas Instruments




Texas Instruments TI-30X IIS 2-Line Scientific Calculator
From Texas Instruments






Customer Reviews

Does the job....4
This calculator does the job for what I need. No batteries needed and it is solar powered. Only problem I have is the cover case. It is not slide in / slide out cover cases like most calculators. It is more of a snap it on / snap it off. Other than that it does help protect it from dust and getting the screen scratched.

good buy4
It was sold out at our stores and I recieved it in a couple of days in the mail. Good choice

Great!4
I use this for advanced algebra I and it works great as a scientific calculator! (I still have to have a graphing calculator, but that is too big to carry around all the time.) I use this for everything I do math-wise and it works great!

Pros: well...it does what it's meant to do, and does it well. And at a great price, too!

Cons: I left it in my binder without the cover, and I think making it turn on and off all day long broke it. We tried replacing the battery but that didn't work. Also, I like a slide-on cover better than the span-on cover that this calculator has. Still, I am completely satisfied with it!


Product Description

A calculator for science, math, algebra, trigonometry, statistics. 2-Line Display, 5 Memories Enter/delete/insert/edit individual statistical data elements Trig functions in degrees and radians Fractions and Fraction/Decimal conversions Degrees, Minutes, Seconds (for time calculations) Decimal degree conversions Common natural logarithms Reciprocals and Factorials Universal Powers and Roots Polar/Rectangular conversions Menus User-friendly keyboard with durable, plastic keys Protective calculator shield

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Friday, October 3, 2008

Texas Instruments TI-86 Graphing Calculator



Texas Instruments TI-86 Graphing Calculator
From Texas Instruments









Customer Reviews

Great service5
The product is wonderful. Nothing different that other models.
The seller has excellent service too.

Sixteen Years & Going Strong5
I bought mine in October of 1992 as electrical engineering student. In 16 years, it has never left my side. It is intuitive to use, intelligently designed, has lots of handy features built in and is as tough as a VW Beetle. I've dropped mine (and sat on it) more times than I can remember and it has suffered no problems whatsoever.

I recently added up how much money I have earned (so far) with this calculator, and the TI-86 is easily the single most cost-effective purchase I have ever made in my life.

I've hoped for an upgraded version, such as more memory or a colored screen, but honestly there is no compelling reason to upgrade. If I ever need more, I'd probably start with a pocket PC and go from there.

After sixteen years of great service, I'd only buy another TI-86.

"Have calculator, will travel."

Reliable, Durable, Great for Most Applications4
I have been using my TI-86 for 8 years now and it has never had any kind of problems.

I have left this calculator out in my car during the freezing Michigan Winters for weeks on end as well as the 100 degree Summers for the same amount of time. Never a single problem with the calculator.

The calculator has done almost everything I have needed of it all the way through Calculus and Linear Algebra. With that said, the TI-89 and others have much more utility for the high end courses, and are not hugely more expensive.

If you are going to be in a lot of college courses that have high end mathematics, then I would go for the TI-89 or other higher end calculator. If you aren't then it might be worth saving a little money on this incredibly durable calculator that will likely do everything you need it to.

Amazon.com Product Description
Designed with power users in mind, the TI-86 graphing calculator has all the power and functionality of the popular TI-85 but with significant enhancements aimed at students of college mathematics, engineering, and science. The TI-86 includes a function evaluation table, deep entry recall, seven different graph styles with multiple line and shading options, and slope and direction fields for differential equations. In addition, the TI-86 boasts 96 KB of user-available memory--three times more than the TI-85. There's also a new function evaluation table which shows numeric output for function, polar, parametric, and differential equation modes.

The TI-86 runs with programs designed for the TI-85 and includes all the same matrix features, but with a new matrix editor that allows the user to view and edit matrices in two dimensions. You can also view multiple lists and attach formulas to those lists for automatic computations. A new aspect of the TI-86 is the ability to customize product functionality with machine language programs downloaded from TI's Web site. Besides the strong graphing abilities, the TI-86 also has powerful calculus features like integration, derivatives, minimums, maximums, roots, and arcs. It also supports Z80 assembly language programming.

The 64 x 128 high-contrast pixel screen displays eight lines of 21 characters each plus two levels of display menus. With the TI-86, you can link to other TI-86s and TI-85s via the input/output port, and to CBLs, CBRs, and computers. --Dana Van Nest

More Reviews : TI-86 Graphing Calculator

Friday, September 26, 2008

BA II Plus Financial Calculator Texas Instruments




Texas Instruments BA II Plus Financial Calculator





Customer Reviews

Great companion for Financial Calculations5
I used to have a scientific calculator and for all of the complex calculations in finance I needed to build models by hand. This calculator helps you in many ways. Easy to calculate NPV by entering cash flows. Durable. I recommend it to every finance major.

BA II Plus Fin'l Calculator4
Great product and very useful!
Great service ordering it through Amazon, not to mention lower price.

the shipment is really fast, though the price is not cheap4
i found the same calculator in Meijer that is cheaper than the total price(including shipping fee) in amazon. However, the shipment is really fast, i don't care the little difference.

Amazon.com Product Description
We're definitely taking this along with us the next time we shop for a house. Though it takes a little effort to master the collection of financial worksheets available on the Texas Instruments BA II Plus, you'll be glad you invested the time and money in this fine financial calculator.

The more hard-core worksheet mode includes tables for amortization, bond, depreciation, and compound interest. If you're not familiar with such calculations, the very helpful user's manual will guide you through the process. All previous worksheet values are stored in memory, so you don't have to retype all the bond maturity or cash flow analysis figures.

The BA II Plus operates in standard calculator and worksheet modes. The standard mode lets you perform common math as well as operations involving the time value of money--that is, applications such as mortgages or annuities in which payments are equal and evenly spaced. You can also perform trigonometric functions in standard mode.

Finance students and average users alike will find much to like in the Texas Instruments BA II Plus. --John Frederick Moore

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