BIG CALCULATOR Review

Average Reviews:

(More customer reviews)Product is generally what it's made out to be, with one notable exception.It is not a dual power item (just battery power), which was an important criteria for me (if you don't care about solar power, there are lots of other large calculators).Button layout is also different from the picture, but generally functional.

Overall the calculator works, but you have to be careful to press the large buttons right in the center, or your entry may not be registered.Not a big deal, but it means that you have to watch the screen carefully as you push buttons to make sure nothing is missed.

One other "nice to have" would have been comma displays in large numbers (e.g., 1,000,000 for one million, whereas the calculator displays 1000000).

Other than that it works like you would expect a calculator to; and the price is reasonable.

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Product Description:
Auto OffRubber KeypadMemory CalculationDual PoweredSolar Battery OperatedExtra Large 8 Digit Tilting Display

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Ti-nspire Rechargeable Battery Review

Average Reviews:

(More customer reviews)Battery was quick and easy to install. Recharges very quickly. Saved a lot of money by not having to buy AAA batteries.

* You can put AAA batteries and have the rechargeable battery in at the same time.

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Product Description:
TI-Nspire Rechargeable Battery

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Texas Instruments TI-30XIIB Scientific Calculator Review

Average Reviews:

(More customer reviews)I bought this calculator b/c the National Board in Examiners of Optometry (NBEO) only allow Texas Instruments 30-series calculators on their exam. It's a good calculator and does just about anything you need it to for practical uses. I don't want to be rude, but the previous reviewers weren't "on the ball" on this one. If you want a solar model, buy one. This exact calculator is available in both battery and solar power. Your fault. To find square roots of a previously entered number, use the "Ans" key and close the parentheses inside the root bar. For basic exponents, use the "^" key. Don't blame the manufacturer for your incompetance.

Overall, don't listen to the previous 2 reviewers, and buy this calculator for use with any major exam (it will likely be one of the few permissible anyway).

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Product Description:
Item #: TEXTI30XIIB. TI-30XIIB Scientific Calculator Display Characters x Lines& ;10 x 2 Formula Notation& ;Algebraic Storage Memory;5 Variable Statistics& ;Two Levels of Parentheses& ;23 Base Number Calculations Fraction Calculations Fraction/Decimal Conversions Probability (Random Numbers) Battery Powered Size& ;3-3/8w x 6-3/8d Replacement Battery& ;3.0V Lithium (EVEECR2032BP), sold separately Portable calculator with LCD display. Protective hard case and operating battery included. Customers also search for: 10-Digit Display;Battery Operated;Calculator;Calculators;Case;Handheld;Pocket;Scientific;Scientific/Math;TEXAS INSTRUMENTS;TI-30XIIB, 033317198719

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TEXAS INSTRUMENTS TI-30XA Calculator, Scientific, One Line 10-Digit* Display, Battery OperatedDisplay, Battery Operated Review

Average Reviews:

(More customer reviews)But this calculator's buttons are hard to use.You literally have to smash on these buttons, slowly.If you're at the ACT, I wouldn't recommend this product.

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Product Description:
TEXAS INSTRUMENTS TI-30XA Calculator, Scientific, One Line 10-Digit* Display, Battery OperatedDisplay, Battery Operated

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Texas Instruments TI-NSpire Math and Science Handheld Graphing Calculator Review

Average Reviews:

(More customer reviews)Strengths:

The document management system -- multiple "problems" can be kept in the calculator at the same time, and each problem keeps its own variable names; good graphing capabilities; ability to split the screen and work with multiple views of the same problem; spreadsheet application.The calculator has 5 "applications" (calculator, graphs & geometry, spreadsheet, data & statistics, notes), and information can be shared between them.

Weaknesses:
The documentation is very poor.There are two user guides, with considerable overlap in the contents.In User Guide Part 1, which comes packaged with the calculator, there are 25 pages on the Graphs & Geometry application, and the information on how to actually plot a graph is barely mentioned.User Guide Part 2 comes as a PDF file, and has more detail, but is badly organized and missing a lot of information.For example, instructions for a number of operations say to "drag" something, but nowhere in the manual does it say how to do that.

Keypad: other reviewers have commented on the difficulty pressing the right buttons on the keypad.Even worse is the "mouse" operation.I finally discovered that dragging involves holding the center "Click button" while pressing the arrow keys on the "NavPad".It is very difficult to control the cursor with the NavPad, and doubly so when trying to hold down the click button.Also, what operation is done by a click or drag is dependent on where on the screen the cursor is, and it's difficult to control the cursor location with the level of precision needed.

TI-84 compatibility: This seemed like a great idea.However, as far as I can determine, there's no way to integrate TI-84 functions with TI-Nspire functions.When you put in the TI-84 keypad, you get a TI-84.With the TI-Nspire keypad, you get a TI-Nspire.If you want to transfer information from one to the other, it seems to be impossible.The only relevant information in the documentation about TI-84 mode is a warning that if you update the operating system, all your added TI-84 applications will be deleted.

Lack of software: The TI-84 has a lot of user-contributed software.There's almost nothing on the TI web site for the TI-Nspire.I also didn't find much with a web search, and some of what is available requires the CAS version.For example, there don't appear to be any built-in physical constants or conversion factors for units.I could switch to TI-84 mode and get them, but then what's the point of buying the TI-Nspire?

Summary:

This calculator does not appear to be well-engineered or well-supported by TI.I would recommend waiting to see whether they give it the support that it deserves.

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Product Description:
The TI-Nspire handheld comes with a snap-in TI-84 Plus Keypad that provides the same keystrokes as TI-83 Plus, TI-84 Plus and TI-84 Plus Silver Edition graphing calculators. Whether handhelds are provided by your school or your students bring in personally-owned units, this side-by-side compatibility between TI-Nspire handhelds and existing TI graphing calculators delivers a comfortable transition to TI-Nspire technology.Inclueds USB cable for software and file downloads.

Get 22% OFF

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Texas Instruments TI86 Graphing Calculator Review

Average Reviews:

(More customer reviews)I had used a TI-83 for Precalc, but really needed something a little more powerful for Calculus, so I bought an 86.One of my friends has an 89, but many tests that allow graphing calculators still don't allow a TI-89because they have "algebraic manipulation" capabilities, plus the86 is cheaper, so I went with that.I have not been disappointed.It hasa much cleaner interface than the 83, and the 83's only real advantage, astrong financial and statistics package, can be downloaded to the 86 as anaddon.Be warned though if you do that, the Graph Link cable (to thecomputer) is not cheap.It's a great calculator with a lot of goodfeatures.Those looking for more features can easily customize it byprogramming it, a pretty straightforward process.

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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

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TI-Nspire CAS with Touchpad Review

Average Reviews:

(More customer reviews)Call me totally impressed! I have used the TI-83/84 calculators for years but rarely the advanced features they offered. I often found them to obscure and annoying. The Nspire takes a powerful document approach that is totally different than the Ti 83/84 series.

This Nspire CAS Touchpad is quite a revelation. It took me all of an hour to understand (with the Dummies book at my side) almost all the functions it offers. The keypad is clear and obvious unlike the first versions of the Nspire. I was amazed at how much I could do with this device with so little effort. I have been using Mathematica for many of the classes I teach. The Nspire can replace Mathematica for most of the things we do in undergraduate physics and engineering courses. That is impressive.

The large screen is a bonus. The characters are clear with high resolution. The large screen means that everything you do is easier to see and analyze. The screen is adjustable but it is still a calculator screen. You need light to see it well as it is not backlit like LCD computer monitors.

Some people compare the Nspire with the Ti-89. Sorry, no contest. This Inspire runs rings around the Ti-89, a calculator I never really liked. It is faster, easier to use and read, and a joy to use. Don't waste your time with the TI-89. Putting a little time in learning the Nspire paradigm will reward you.

The Nspire comes with desktop software that duplicates the functions of the calculator. On a MacBook Pro, it installed right away without problems. There is a link included with the software that allows you to backup and update the Nspire as well as move files back and forth.

The Nspire links up with the Venier Go! and EasyLink sensors. I haven't tried this yet but will in the next week or so. We have LabPros and LabQuests for our classes, but it will be fun to try the Nspire anyway.

I have not been so impressed with a calculator since my very first HP-15C too many years ago. It's even more impressive than my first professional slide rule! I very rarely gush about a product, but this device is something I have been looking for a very long time.

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Product Description:
TI-Nspire CAS w/ Touchpad

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