Now that you’ve purchased the graphing calculator ti-84, you need to answer an important question. “What does this button do?”

Jokes aside, the TI-84 graphing calculator probably does more than you will ever need. If you’re in high school or the undergraduate level of college. Unless you’re experimenting, there are buttons on the TI-84 that you will never need to touch.

That doesn’t mean you won’t benefit from a rundown on how to use the TI-84. From fundamentals to expert techniques. You can find number of tips to give you a boost in algebra, calculus, and other advanced math courses. where this calculator is essential.

**WHY USE THE GRAPHING CALCULATOR TI-84?**

The TI-84 graphing calculator has been one of the go-to graphing calculators in math courses for decades. Ever since its introduction in 2004. Teachers in both high school and college have adopted the TI-84 for graphing in algebra and calculus.

Despite the odd naming choice, there is no original TI-84 graphing calculator. The only model you will find is the TI-84 Plus, which is itself an update of the TI-83 Plus. Discontinued upon the introduction of its older cousin.

When you receive your syllabus for an advanced math course, it’s not uncommon to find this calculator at the top of your requirements.

**BASIC FUNCTIONS OF THE GRAPHING CALCULATOR TI-84**

Now that you’ve opened up the TI-84 graphing calculator from its packaging. It’s time to figure out how to use it properly.

**INSTALL 4 AA BATTERIES**

If you’re buying the TI-84 graphing calculator new. There should already be four AA batteries installed by Texas Instruments. The set of batteries will last for quite a while. You should be able to go through an entire school year without worrying about dead batteries.

If you’re concerned about battery life, you could invest in rechargeable batteries to prevent any disaster during final exam.

**GRAPHING CALCULATOR TI-84 - EXPLORE THE FUNCTIONS OF THE CALCULATOR**

The keys on your TI-84 graphing calculator hold a number of constant values. You will be referencing throughout your time with algebra and calculus.

Square roots are assigned to the 2nd function of the square key. And you can use the LOG button’s alternate function to take 10 to a given exponential value.

You’ll be using the Ti-84 graphing calculator to a graph, as the name suggests. When you press the “Y=” button, you’ll be asked to input a set of values. This is where you’ll be doing most of your plotting work. You can put in numerical values to adjust the visual readout on your graph.

You can zoom in and out with the appropriate button. See your graphs from different perspectives as you shift up and down on each axis. Using the ZBox command, you’ll focus on a specific section of the graph and eliminate the needless portion.

**GRAPHING CALCULATOR TI-84 - EXPLORE THE FUNCTIONS OF THE CALCULATOR**

The TI-84 graphing calculator is capable of so many different things. You might never encounter any of them if you don’t know what you’re doing.

Three different languages are supported by the TI-84: TI-BASIC, Z80 assembly language. And applications in Flash, which are also written in the same Z80 language. This changes in the TI84+CE model, which we will get into a bit later.

If you have the proper accessories. You can download entire programs for TI-84 graphing calculator that function as games and apps on their own.

In January 2006, to counter cheating the calculator’s operating system included the Press to Test tool. A feature still available for teachers to this day. Instructors can use this to find out if there are any third-party apps or programs on the calculator. Could be considered inappropriate or could be used for cheating. One touch of the button allows any of these programs to be disabled.

Values can be entered into the calculator for lists and sequences. The same can be done for matrices and complex numbers.

**VARIABLES**

Entering variables into the TI-84 graphing calculator involves the use of tables. You can use the “2nd” key to access the table. Where you can see existing values that may already be abbreviated.

When you first see the table displayed, there will be a message asking you to input a specific command. The reason for this is because you can press these keys to change the table any time.

Your graphing setting will determine whether dependent or independent variables are displayed on your current table. You can clear variables from entire table by hitting enter after going to CATALOG and selecting ClrTable instruction.

If you need to change table settings while you are in the table view. You can press the “+” key and entering a new value in the location where you need to set it.

**COMPARING THE TI-84 MODELS**

Even if you are set on using the TI-84 graphing calculator. You might be confused as to which model is the correct one for you. What are the __differences among the models.__ How do they affect what you can do in and out of the classroom?

**INHERITING A USED MODEL**

If you happen to have an older sibling or even a parent who has previously used a __TI-84 graphing calculator.__ They may still be able to help you learn how to work with one of the new models.

Despite the advances in graphics and memory. The commands used in each iteration of the TI-84 largely remain the same. The physical button layout is still the same. The menus inside each section of the calculator’s software haven’t noticeably changed after almost 15 years.

Not only does this mean you are set if you have someone who has experience with the TI-84 graphing calculator. But you are future-proofing yourself and anyone who you might want to give the calculator as a gift when it comes time for them to begin their experience with calculus or algebra.

**DIFFERENCES IN THE TI-84 MODELS**

If you have ever held a graphing calculator in your hands from years ago, you’ll probably remember the weight of it. Dropping a graphing calculator felt like setting off a bomb. The TI-84 graphing calculator which debuted most recently, the TI-84 Plus CE, has dramatically decreased its carbon footprint.

The calculator is 30% thinner than previous models and weighs less than half a pound. Not only is this great for a lack of wear and tear, but it also makes this calculator easier to take with you in a bag or even your pants pocket.

On top of this, it has a new “deep sleep” feature that conserves battery life for months on end. Recovering the TI-84 Plus CE after a summer vacation will feel like the batteries were put into suspended animation.

**USING THE NEWER TI-84**

The TI-84 graphing calculator’s newest iteration feels different in your hands and will also feel different on your eyes. It comes with a brand-new operating system, and unlike previous generations, the CE is continuously supported through firmware updates, just like other mobile devices.

Bug fixes and UI cleanups are a regular part of the CE’s update log, which is something never previously applied to calculators throughout a high school or college schedule.

The interface for piecewise functions has been given a nice upgrade, too.

Gone are the convoluted, clunky menus that the original TI-84 graphing calculator forced you to sift through while working with piecewise functions. The MATH function now has a dedicated piecewise option inside its menu. Just as you might find in a calculus textbook, you’ll now see a template to plug in your necessary values.

Once you look at the 84 Plus CE, you’ll never want to look back at the original TI-84 graphing calculator.

The monochrome display has been replaced with a backlit color display, and along with this, you don’t have to replace the batteries anymore. The CE has a rechargeable lithium-ion battery, so you can save the disposable AA batteries for your other remotes or devices.

**APPLYING YOUR TI-84 GRAPHING CALCULATOR TO CLASS**

With the TI-84 graphing calculator in your hands, there isn’t much you won’t be able to do in an upper-level math course. It’s accepted for use on many standardized tests, including the PSAT and ACT.

Outside of math, you might find the use for the TI-84 in physics, chemistry, and finance courses.

Investing in the TI-84 graphing calculator is something you should consider if you plan to pursue higher education. More than likely, you’ll be taking the calculator with you for multiple math courses. If you plan on majoring in anything related to math, the calculator will practically pay for itself by the time you graduate.

There may be newer models that get introduced down the road, and maybe there will be room for other apps that let you multitask while graphing. At its core, though, the TI-84 graphing calculator hasn’t changed since its inception.

Learning how to use this essential tool for algebra and calculus will be one of the best tutorials you can give yourself as you continue to pick up more concepts in your math courses!

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