Calculator Tutorial - Intro to the TI 84 Plus

In this video, I give a introductory tutorial on the Texas Instruments TI-84 Plus calculator, one of the most commonly used graphing calculators today.
Topics covered Include:
1. Turning on and shutting off
2. Basic operations (add, subtract, multiply, and divide)
3. Using the 2nd and Alpha buttons
4. Storing a value as a letter for later use
5. Navigating the mode window
6. Evaluating trigonometric functions
7. Evaluating with exponents
8. Using logarithms
9. Creating graphs of functions
10. Changing window and zoom settings for graphs
11. Calculating zeros and relative extrema of graphs
12. Graphing trig functions and using the zoom-trig feature
I hope you enjoy this tutorial. Please like, share, and subscribe to Tutor Terrific!

[@dontknow8548]

Thank you so much! My teachers never taught us how to use calculators and the ACT is coming up!

[@TutorTerrific]

I’m kind of a fan of that test over the SAT, good luck!

[@bilawl9359]

I fine that hard to believe

[@daniel4173]

@@TutorTerrific Does this caculator model only have 8 options for apps? The new version have 9 but mine only has 8

[@gate9595]

Also, if you hit the CLEAR button by mistake, and lose all your stack contents, you can just use the UP arrow key to get them back. Something I'm surprised the 89 Titanium didn't have since they both came out around the same time. This video does a very good job at getting one started.

[@watching4410]

Does ti 83 have this feature?

[@gate9595]

@@watching4410 No

[@davidfrick2621]

EXCELLENT video! Seriously, very well done. No fluff or superficial content. The real value is the focus: what do you need to get up and running fast with this calculator. Good coverage of the essentials: trig, exponents/logs, and graphing. Everything else is pretty much intuitive but these are the critical functions people will need guidance with. And special thanks for demonstrating ZOOM 7 for graphing trig functions. Anyone who has to use trig functions is going to appreciate that one. Great presentation but the really superb part is the focus on the topics of substance; no wasted time. Thank you!

[@hestersoutherland6939]

This was so very helpful. Each step was clearly explained. This was terrific!

[@sheridaally2295]

thank you so much I learned a lot from this tutorial for my pre-cal class

[@OldCarsAreFun]

This is pretty usefull. Had this in highschool 10 years ago and now needed my ti84 again thanks for the quick intro

[@TutorTerrific]

You are welcome.

[@Ziedmac]

Thanks youtube and man on the internet. This is the kind of thing that I find interesting!

[@ramen5243]

thank you this was REALLY helpful😁👍

[@Banannieee0625]

Thank you, from a non trad student returning to school!

[@TutorTerrific]

Non trad student, what does that mean?

[@shaunpbryant]

Great Content.

[@felixd4017]

Yo ! Was wondering if you will ever post part 2. This video has already helped me slot n my finals are soon

[@yaninvernizzi701]

thank you teacher. good much class

[@Fi_ji]

thanks imma use it on the sat this morning

[@TutorTerrific]

How did the SAT go?

[@terryterry7958]

Actually, you don't have to use the change of base formula (although of course, it'll help if you have it memorized in your exams ;)), if you want to find log base k of x, you can do [log] [x] [,] [k] [)] (each key is enclosed in [ ]), where that [,] is the button above 7 (comma).

[@guysaintvil3608]

Fantastic job

[@TutorTerrific]

Thanks, I just hope I was able to help you.

[@nafiskhan1385]

very helpful thx

[@TutorTerrific]

Dang, You literally found it right after I uploaded it! Appreciate the support!

[@rickyv1839]

great tutorial!

[@TutorTerrific]

Thank you very much!

[@scotjohnson7017]

Great video! I’ve got points and a best fit line. How can I calc error like sqrt of sum of squares? Thanks!

[@eliasakili5262]

Thank you 🌹

[@TutorTerrific]

You are welcome.

[@geoffwade8144]

Well done thank you.

[@TutorTerrific]

You are welcome

[@sxylegz0216]

why doesn't the comma button work when using the ti-84 plus ce if you need L1, and L2 calculated together for the expected value

[@AugustIsMe_9966]

I'm doing this right before my final lmaooo thanks for the tutorial! :)

[@TutorTerrific]

You are welcome!

[@rochakpaudyal]

Hi! What’s up with the charging port? Do you mind explaining that since it take battery anyways.

[@TutorTerrific]

That is actually not a charging port, but a port for a programming cable. A cable comes with these calculators that allows you to connect to the computer to download programs.

[@rochakpaudyal]

Thank you!

[@alisultani3793]

Thanks it was very good !!

[@TutorTerrific]

You are welcome!

[@progressivehouseclusive3835]

I noticed that your characters and digits go to the next line(8:27 in the video) instead of infinitely going all to the right. How or where in the settings do I change that?

[@strixapades312]

I doubt you still need the answer, but you can do this by selecting MODE, pressing the up arrow, and changing from MATHPRINT to CLASSIC.

[@cristawalker2139]

Could you help me? I was following your video and when you were demonstrating the graphing, my graph came out looking very different than yours when you entered x3-4x2. But the my GRAPH screen looks like a play button before the Y

[@user-uo6be6mj9o]

Sir, I have a question! My school needs a ti-84 plus CE calculator, but my mom only found and bought a ti-84 plus graphing calculator. Is it still okay if I go on using this to my classes or will I be left behind if I use this calculator? Is there really such major differences between them?

[@git_conded6180]

Yeah you should be fine, it’s the same calculator pretty much

[@_uhlisuh_]

You should be okay because it’s the same just in color.

[@numberii300]

it’s the same thing just the ce has color im pretty sure

[@williamgichia4351]

Awesome

[@TutorTerrific]

Thank you

[@williamworugichia3247]

Amazing

[@TutorTerrific]

Thanks

[@hantaworm03bryant91]

Can this calculator convert decimals into a fraction that has square roots in the answer? For instance 1.166190379 is equal to square root 34 / 5, but with that answer show up in the calculator in that format?

[@TutorTerrific]

Unfortunately, I don’t think so. I know that the TI 30XS multiview can do that, But it is much newer than this.

[@user-ko6qe9fy6m]

thankyou very much ,i solve the problem

[@TutorTerrific]

Excellent, what problem did you solve?

[@user-ko6qe9fy6m]

​@@TutorTerrific

[@seymann.patili.dostlar9879]

Hello, after pressing y=, how can i make an fraction ti-84

[@TutorTerrific]

Like this: (numerator)/(denominator) place what the numerator and denominator are inside parentheses.

[@immanuellawrence2196]

Do you have a video showing how to do fractions with this model?

[@TutorTerrific]

I didn’t make a separate video for it. But here’s how I do it (numerator/denominator) I do it this way inside parentheses and it works just fine.

[@TimNoyce]

Press [alpha] then [y=] and you get a minimenu, use the top choice to input a simple fraction and then you can do fraction sums and the answer will be given as a fraction.

[@evenl.a8473]

@@TimNoyce when i do this i come into the same menu as the guy in this video at 20:42 but i have seen another video where by pressing excatly the same the menu with the fractions are showing :/

[@oyunboldganbaatar7501]

just divide the numerator by the denominator

[@sidekick3rida]

Thanks so much! Just curious how you learned.

[@TutorTerrific]

Years and years of teaching/tutoring high schoolers.

[@loulou118]

Can you show me how to calculate fractions using this calculator?

[@itzhailey]

how did you get your characters and digits go to the next line instead of infinitely going all to the right?

[@qwertyqwertperson]

fr tho

[@Naudir505]

My hero! Ive been reading physics and have used an app so i wouldn't have to buy a graphing calculator. Final exam is one week away and they don't let you borrow one either so I had to panic buy one. But now i have no clue how to use it since its completely different in how you have to arrange your equations and settings, this will save my ass! Thank you! Btw... Is there a way to store entire equations so you just have to put in the necessary numbers? Example: F = k × (x_1 * ×_2)/r^2 Have that equation stored so i can just change the "x" to the numbers i need? That would be awesome! I got the "ti 84 plus silver edition"

[@TutorTerrific]

You can only input and evaluate functions by plugging in the right side of the formula to the y= button. Then, use the table button to input values and see the outputs.

[@qwertyqwertperson]

what OS is your calculator on? when i press mode on my ti84+ the screen looks different.Also, how do you get the numbers go go to the next line instead of it keep going on to the right like in 6:37 ?

[@TutorTerrific]

It was indeed very nice how that was set up, but I have to be honest: I borrowed that calculator to make that video, and I no longer have it.

[@j.lietka9406]

So when you designate a letter for a numeric value, you can only use a single letter? Can you save as a double letter? 45.135 = AA? Thank you 🤓 recently found a tossed out TI 84 Plus. Had to clean some corrosion on the battery spring contacts, installed fresh AAA batteries, & seems to work fine!

[@TutorTerrific]

Good find! They are still over $100 new. I will try this on my TI84 Plus CE and get back to you.

[@j.lietka9406]

@@TutorTerrific yes, thank you 🤓 wish it was the CE version! As a kind of hobby I look for electronics in dumpsters and curbside stuff.

[@TutorTerrific]

@@j.lietka9406 I can now confirm that it does not work, a syntax error results. You can only use one letter for storing a value as a variable.

[@j.lietka9406]

@@TutorTerrific well thank you for trying! 🤓

[@chrisclements3862]

how often are you on sir? i have a question

[@TutorTerrific]

I check the comments through every other day, let me know what you need help with.

[@paul-pq4xp]

Ty

[@TutorTerrific]

Yw 🤭

[@rnRN-hg1pv]

no doom install tutorial? that is the most important feature

[@michaelmacchia4371]

I hope you still answer. My model is just like yours. It came with 4 batteries, but also a charging cable. What are both used for? T.I.A

[@josephmarcucilli8045]

Almost forgot to mention: You may have also received a smaller cable (without the usb3 plug). That cable can be used to transfer programs/games from another ti-84 calculator (from a friend or teacher, etc)

[@user-mg9wo1gb3l]

How can I increase the intensity of lighting?

[@TutorTerrific]

Do you have this exact model? If so, there’s no internal light.

[@careychopin5463]

👍

[@leanabuchberger3881]

Can you charge it with the cable ?

[@TutorTerrific]

No you cannot. This model uses 4 batteries on the back side.

[@alexusstt2873]

Does this specific calculator need to be charged?

[@TutorTerrific]

No sir, it uses batteries.

[@alexusstt2873]

@@TutorTerrific Oh, awesome thank you!

[@watching4410]

How do you scroll up and down the screen to see past equations?

[@TutorTerrific]

You have to press 2nd+Enter to see past expressions one by one

[@carolinec108]

How do you type fractions?

[@brodrickwyatt5962]

Put the inside of parentheses. Ex: (3/4)

[@Piff-A-Potomus]

Click the “Alpha” button, then on the top row you should see F1. If you click that it will take you to a list and for a basic fraction just click enter on “n/d”

[@dianavictor8329]

Does it charge? I got it with a usb but I see no battery signal or no signs of life of battery when I connect it to my pc.

[@TutorTerrific]

Not this model, that’s just for downloading programs, you need batteries in the back. I think it’s four AAA’s

[@ncsEsper]

Good info. Ditch the music - you don’t need it. Also, get checked for Covid! The nose leak is a warning. I think.

[@TutorTerrific]

Thanks for the feedback, but just know that I made and uploaded this video almost two years ago, my guy, haha!

[@francisrokicki9300]

covid freak

[@DeniseJingerBacong]

Me right now cause I have to say goodbye for my casio calc

[@TutorTerrific]

Keep it for posterity.

[@madisonlarocque5301]

My calculator won’t graph! Any suggestions?

[@TutorTerrific]

What error message does it give you?

[@madisonlarocque5301]

@@TutorTerrific DIM MISMATCH

[@turaysamuelm.4445]

Sir , when ever I tried following your tutorials on solving graphs on TI 84 plus ,as soon as I pressed the window's button trying to insert the scales its shows me ERR: SYNTAX 1:QUIT 2:GOTO Pls sir help me

[@TutorTerrific]

After you put your scales in or as soon as you press the window button? Make sure you use the negative sign (-) not the minus sign - for negative numbers.

[@51o.jordan]

Also this video was how to go from windows 8.1 to 10

[@ems6466]

im in class and i got an exam soon.. i just noticed that the tut is like 30 mins

[@TutorTerrific]

What is a tut?

[@rayturnatus8378]

​@@TutorTerrificI think it's meant to be an abbreviation of tutorial

[@cristawalker2139]

Please disregard the previous comments I figured it out...mostly. When I hit the Graph button now it says ERR:WINDOW Range 1:QUIT???

[@TutorTerrific]

Go to the window button and adjust the xmin, xmax, ymin, and ymax so that the min values are less than the max values. Alternatively, press the zoom button and the 6 to reset the graph window to its default settings.

[@silviamendoza9079]

No tendrás una copia de seguridad de tu texas

[@TutorTerrific]

I know, I don't need one

[@Equa123]

Idk how to close it

[@saideepadilla8011]

Where's the % at ?

[@cristawalker2139]

My graph is not even. I let my step-son borrow it and I am not sure what he did

[@user-fi3tm6z]

BRUH this came in my recommendation for no reason

[@TutorTerrific]

BREHH, I don’t know what to tell you. KZbin is puttin’ my name out there, I guess.

[@nobdaud.1529]

I am from india

[@sageholt1148]

Anyone who is getting there GED you don't need to know all of this

[@sageholt1148]

Very very helpful though

[@TutorTerrific]

Thank you.

[@TutorTerrific]

True, they need to know the basic operations and basic algebraic functions.

[@gimoosh4362]

my calculator is confused

[@harleyknight7807]

19:11 "The letter E"

[@arriverderci8337]

send help i used to know how to do this but ever since covid happened i forgot everything im taking algebra 2 and im lost in class god dammit

[@TutorTerrific]

I send help by forcing you to watch video.