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Texas Instruments TI-Nspire CX CAS Review

During my many years of teaching mathematics in high school, I spent most of my time working on a TI-Nspire. I have used many other calculators, but this one has become by far my favorite graphical calculator. I want to keep my TI-Nspire CX test up to date, especially since a new version of the operating system has been released. So it seems logical that I make a 2016 update of this article and my opinion also on this calculator because a lot of things have been improved. This article is both a review of the TI-Nspire CX and the TI-Nspire CX CAS, although you will see by reading it, the two models have more things in common than differences.

  Strong Points  Weak Points
  • Improves the understanding of  mathematics by being in contact with different functions and applications that allow exploring in detail the equations or problems to solve
  • The users of these calculators have shown to have up to 30% better understanding of the resolution of mathematical problems
  • The application of the use of the calculator in solving mathematical problems has proven to be a source of improvement in student learning in the area of mathematics
  • Refined design
  • Arbitrary extensible functions
  • Useful applications
  • Good graphing representation of functions
  • color display
  • Very large storage capacity
  • Easy operation by touchpad
  • Getting started for regulars from other IT
  • Think about recharging the battery
  • Relative expensive

The  TI Nspire CX CAS  is the new model of the graphing calculator of the Texas Instruments brand that will allow you to solve rigorous calculation operations at an impressive speed, as well as having an improved functionality thanks to its excellent color screen and computational algebraic system or better known as a CAS system.

Description of the TI Nspire CX CAS Graphing Calculator

The excellent graphing calculator Texas Instruments TI Nspire CX CAS  has the best qualities of previous models such as the calculator voyage 200, TI 89 Titanium and TI 84 Plus Silver Edition among others what makes this the most complete and versatile calculation tool in the market. The best qualities that come out in this new model of the brand are:

  • Widescreen in thin color
  • It has a rechargeable battery
  • Your computer algebraic system allows you to solve problems with excellent accuracy and precision
  • Support the calculations or tasks performed to the computers since it has compatibility to connect to these computers

Physical Characteristics of the TI Nspire CX CAS Graphing Calculator

  • It has a screen of dimensions of 320 x 240 pixels
  • The image quality of your screen is 125 DPI and 16-bit color
  • It has a rechargeable battery for prolonged use
  • Its total memory is 100MB of which 64MB is for operational use
  • It has a USB type port which makes IT Nspire CX CAS compatible with the computer

Accessories Included in the TI Nspire CX CAS calculator:

  • TI Calculator Nspire CX CAS
  • Program for IT students Nspire
  • Battery that is rechargeable
  • Power adapter to recharge the Nspire IT
  • USB connection cable compatible with the computer
  • Data transfer cable from calculator to USB calculator
  • user’s Guide
  • Qualities and Special Uses of the TI Calculator Nspire CX CAS

Why is HP 50g an excellent choice?

The TI Nspire CX CAS Texas Instruments could be described best graphing calculator of the moment. It embeds a powerful computer algebra system (CAS) that will help you better understand abstract scientific and mathematical concepts. This tool will also allow you to symbolically solve equations, find primitives, factorize and develop expressions, etc.

It also has innovative features. Thus, the student will be able to see how the manipulation of one form can change all the others simultaneously via a direct interaction with the maths. This is made possible through dynamic links across documents, and also to multiple representations.

Your calculations and graphical representations will be displayed on an HD color screen with a resolution of 240 x 320 pixels. You will then be able to read the information displayed easily and clearly.

The calculator is powered by a battery with a lifespan of about three years, which can be recharged via a USB cable, a wall charger or a TI-Nspire docking station. With its ability to reduce the risk of unplanned discharges, you will not have to replace the batteries frequently.

What would be the most powerful graphical calculator of the moment? Several users will answer “Texas Instruments TI Nspire CX CAS.” This HD screen calculator will allow a better understanding of maths. These many features will be of great help to the student.

Formal computing system CAS

Thanks to this system, the scientific and mathematical concepts will be more understandable for you.

Dynamic links between documents

Through these relationships, the student will notice all the changes caused by the simple manipulation of a form, through a direct interaction with the maths.


This calculator has a color HD screen with a resolution of 240 x 320 pixels. The calculations, formulas and graphic representations displayed will then be visible to the student. In fact, it is more a microcomputer than a calculator given the color screen that accepts universal image formats and displays function curves and other parables. It lacks more than the ability to connect to the Internet.

Battery Life

The battery that this calculator is equipped with can last up to 3 years. The risks of unplanned discharges are greatly reduced, extending its life. It can be recharged via USB, a wall charger, or by using a TI-Nspire docking station. The TI rechargeable battery is easily recharged via a USB cable and a wall charger. It reduces the risk of unplanned discharge and the number of times that batteries need to be replaced. If your child uses it several times a week at school, the rechargeable lithium-ion battery will last up to three years.

Powerful software and machine

This reference embodies a powerful program with a formal computer system (CAS) that meets the needs regarding mathematics and science curriculum from college to university.

The equations to solve, the expressions to factorize and develop, the squares, the primitives, the limits, nothing has any secret for this graphical calculator, and much more. It is recognized in addition to the software TI-Nspire ™ version teaching innovative features allowing the student to assimilate faster mathematical concepts.

Thanks to the excellent functions and design of the new model of the Texas Instruments graphing calculator, users will be able to perform better calculations, analysis and a better understanding of mathematics. With these excellent tools, your operations will be carried out in a matter of seconds including iterative calculations and complex solutions of equations.

  • The TI Nspire CX CAS graphing calculator allows you to manipulate images of different formats such as png, jpg, and bump overlaying graphics in these
  • It allows to use and realize graphics in the third dimension (3D)
  • It has a touchscreen (Touchpad) that makes the calculator easier to use and manipulate
  • Analyzes mathematical problems in detail thanks to its multiple exploration functions such as recognizing symbolic details, behavior patterns of mathematical expressions and graphic representations of these.
  • Visualize in real time the effects of modifying algebraic expressions and analyze the changes and behavior of these in the same calculator.
  • It has a section of dynamic geometry that allows observing figures and geometric shapes in real time and its modifications
  • It has a graphic environment of drop-down menus that allow you to locate the different sections of the calculator easily
  • Perform operations and math jobs in detail thanks to the fact that the calculator can edit, create and save files similar to those of a computer
  • The TI Nspire CX CAS calculator has impressive connectivity with personal computers, laptops or other Texas Instruments calculators.
  • Program in the Texas Instruments graphing calculator thanks to its programming library where you can select functions and commands defined in the calculator and by the user for the development of user programs.

Function that speeds up comprehension processes

This model represents a problem in different ways at the same time to help students better understand and probe the graphical, numerical, algebraic and other forms and make the connection between them. Thanks to an advanced function of the specimen, the screen can be shared in 4.

This little gem amazes even adults and allows to analyze statistical data, draw up histograms, circular or rectangular diagrams, and box plots. We finish the job faster.

An ideal machine for studies

The graphing calculators in this series also have innovative features. Thus, the student will be able to see how the manipulation of one form can change all the others simultaneously via a direct interaction with the maths. This is made possible through dynamic links across documents, and also to multiple representations.

Your calculations and graphical representations will be visible on a color HD screen with a resolution of 240 x 320 pixels. You will then be able to read the information displayed easily and clearly.

What’s new on the TI-Nspire side?

First, version 4.0 of the TI-Nspire operating system was released last year. This update was available for the TI-Nspire CX and the TI-Nspire CX CAS. This update may appear minor in appearance, but it still had a significant impact. For the first time, old black and white screen calculators could not get this update. These calculator versions will remain locked in version 3.9 of the operating system.

The new version 4.0 is composed of a set of regular updates and available regularly, but I will come back to it later. If you were now planning to buy a graphing calculator that you intend to keep for years, I would be hesitant to choose an old model that could at some point no longer receive updates, as it was the case recently. It is very likely that future updates will focus on displaying graphics and colors. The new calculators with the updates will not look anything like the old ones. I warn you because the non-CX models of the TI-Nspire are significantly cheaper, but you take a real risk of being excluded from the cycles of updates shortly.

Nevertheless, the TI-Nspire environment remains one of the most complete regarding functionalities. Most mathematics teachers and mathematics students at the university own it. A few years ago now, Texas Instruments released an iPad application containing the main features of the TI-Nspire. Even at about thirty euros, I had already advised the purchase of this form, although this does not replace a TI-Nspire CX.

Even without the recent updates, I already found that the TI-Nspire stood out among the Texas Instruments calculators. From an educational point of view, she has no equal, and the TI-84 and other TI-89 are a tone below. The user interface has everything from a modern interface, and young people who grew up with the Internet are easily found there: drop-down menus, tabs, move-and-paste function, file management. We find the characteristics of a computer and a modern Internet browser. The graphical calculations have been made as simple as possible: no need for a lot of settings because the calculator automatically detects the minimum and maximum values to display.

But what makes Nspire above others is its dynamic properties. You can very well have a graph, an equation, and a data table on one screen. If you move or modify data on the graph, the equation and the table containing the data update immediately.

TI-Nspire updates

In fact, since the 3.2 update of the TI-Nspire operating system, Texas Instruments has offered students and faculty everything they’ve been waiting for. The new updates are a (very appreciable) bonus. This 3.2 update has mainly brought graphic improvements. For example, owners of a Nspire today can draw cone sections as well as to represent the result of an equation of the form “x = ?? “. This function has long been expected of teachers and students. It allows you to visualize in a few seconds how the results of such an equation appear.

The more recent updates, although more modest regarding size, still brought their share of improvements. The 4.0 update I mentioned earlier in 2015 has progressively improved the graphing functions of the calculator as well as its geometry in space. For example, this includes the ability to customize the 3D display by choosing to either display the three-dimensional graph or project it on a given surface. The values of the angles are then rounded to the nearest integer. These small details make the use more and more simple and improve the user experience.

In addition to these important graphics updates, Texas Instruments has also added some minor updates. The management of the battery has been improved. Previously the battery was fixed inside the calculator and impossible to remove. On the new design, the battery is smaller and looks like that of a mobile phone. The battery is easily changeable in case of a glitch. This does not happen very often since the battery is rechargeable but never knows, it would be a shame to put the calculator in the trash just because of the battery.

Texas Instruments also sees teacher training as very important. I had the chance to attend several fascinating online presentations where the capabilities of the calculators, and especially the TI-Nspire, are used to the fullest.

How to use TI-Nspire CX CAS / TI Nspire CX CAS Tutorial 

I encourage you to watch the TI-Nspire presentation video by Texas Instruments. This video is certainly in English, but it has several very important features of the scientific calculator:

And the TI-Nspire CX in all this?

The TI-Nspire CX was all the rage when it was released as Texas Instruments’ first color graphing calculator. But that’s not all; it came out with a significantly improved design: smaller, thinner, lighter than her big sister, she has one step ahead. The screen is impressive compared to its big sister the TI-Nspire: the resolution is excellent, the colors brilliant and the screen easy to read.

I love the Prizm from Casio, I think you’ve understood by browsing this site, but the screen of this TI-Nspire CX is a level above. The backlight of the screen makes it readable in a bright room. We feel that everything has been thought for maximum comfort of the user.

I quickly compared the display of images (JPG, BMP or PNG files) on the TI-Nspire CX and non-CX. The images make very good on both models: colors and black and white. I did not put a photo of this comparison on this site because taking pictures does not reflect the quality of the images. A test passed successfully for both models.

The interactivity of the new Nspire CX is also slightly better: buttons respond faster, and menu navigation is slightly better. This is due to a set of improvements in the operating system, but also hardware.

With this new TI-Nspire CX, interchangeable keyboards are becoming outdated. The TI-Nspire CX cannot be used as a TI-84 Plus as it was possible on other TI-Nspires. Texas Instruments commented on this change by saying that the Nspire CX should be used as a TI-Nspire CX and no longer as a calculator from a previous generation. You have to accept the change and get used to the new features. The result is excellent.

Comparative TI-Nspire CX vs. TI-Nspire CX CAS

In case you have not read it in our graphing calculator presentation, CAS stands for Computer Algebra System. CAS is a function to perform manipulations in mathematical equations of the type: x + x = 2x. The TI-Nspire CX and the TI-Nspire CX CAS look very similar to this feature. They have a lot in common with the calculator and the operating system. Even after some time spent with you, you could always confuse them.

The TI-Nspire CX CAS, however, has some additional menus and some CAS-related features that the Nspire CX does not have.

TI-Nspire vs. CX CAS vs. TI-89 Titanium

For student students at the university, I would recommend the TI-Nspire CX CAS rather than the TI-89 Titanium. The TI-89 Titanium is a very good calculator, do not get me wrong. But the TI-Nspire CX CAS is easier to handle, the user interfaces easier to handle. It’s easier to make graphing, especially in 3D where rendering is better.

For college and especially high school students, the TI-Nspire CX CAS and the TI-89 are both very good choices. As I said above, the user interface is slightly better on the TI-Nspire CX CAS so why not opt for this one.

Conclusion on TI-Nspire CX

From the beginning, I was impressed by the speed with which students managed to take it in hand, including basic functions such as fractions, graphs, and tables of data.

The TI-Nspire CX and TI-Nspire CX CAS are not the cheapest graphics calculators, but they are worth their price. These are very, very good graphing calculators. When Texas Instruments launched its TI-Nspire lineup, some people wondered why so many changes while Texas Instrument already had a range of TI-89 that worked well. But, with the time and constant improvements of Texas Instruments on the operating system, TI-Nspire has gradually dethroned other IT to find a place among the best graphing calculators.

With TI-Nspire, students spend less time on their calculators and more time learning math. The Texas Instruments update platform has now arrived at a near perfect stage.

If you decide to buy the TI-Nspire CX, it’s at the best price on Amazon with free shipping.

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