Using Your TI-84 Plus CE Part 1: Basic Math

[@Zach-nz4te]

You're a lifesaver. May your days be filled with joy a prosperity.

[@KermMartian]

Thank you, same to you!

[@Stareyiii]

@@KermMartiandamn u replied after like 8-9 years-

[@rileyarnold8594]

My MAT 103 professor decided yesterday (TWO DAYS BEFORE EXAM #3) that we needed a graphing calculator to complete this exam tomorrow (no, it wasn't mentioned in the syllabus or anything). This video series is an absolute GRADE SAVER right now. Thank you so much!!

[@KermMartian]

You're most welcome!

[@teresatorres1478]

Thank you so much for this video , I felt so lost with this calculator.

[@2012daffyduck]

@teresa torres you're so pretty!

[@Alexis-qt3br]

Teresa Torres same

[@rodrigodorey4662]

@@2012daffyduck simp

[@2012daffyduck]

@@rodrigodorey4662 it's not a bad thing being a simp sometimes!

[@thiagogregory1]

@@2012daffyduck lmfao what

[@jessybear345]

Thank you so much I just purchased the TI-84 Plus CE and felt like a fish out of water trying to use it LOL

[@KermMartian]

+jessybear345 Glad to hear it! I do recommend buying a copy of the "Using the TI-84 Plus" book to get more examples and easier reference material, since this video is based on that.

[@jessybear345]

Thanks will get the book then :)

[@smileyface8709]

same

[@schs.hosa.psa23]

its been 5 years

[@schs.hosa.psa23]

@@smileyface8709 this dude is still coming in clutch

[@Umbravenator216]

i went from a ti-30iis to a ti84 plus ce and felt so lost this explains so much im going to watch the entire series and pick up a book thank you to much!!

[@KermMartian]

+David Radtke You're most welcome! Comments like that are a great motivator to continue working on this series, which I've sadly let lapse in the past few weeks. :)

[@alex7317]

KermMartian how do you do fractions

[@Kareeeem]

@@alex7317 press alpha and the button to the right of it

[@Raison_d-etre]

Yeah, that's not a real calculator. Congrats on your new one.

[@desinavan4205]

Thank you. I have less than a month to get myself ready for a college algebra course, and realised, in addition to everything else I need to teach myself, I also need to feel confident with my new calculator before class starts. I'd figured out a few basics (very, very basic things, like on and off, use of the alpha and 2nd keys). This first video has given me a taste of its capabilities. I look forward to the rest of the series and feeling less overwhelmed by the TI-84 Plus CE. I'll be adding the book to my collection before classes start next month, for more in-depth information.

[@Raison_d-etre]

Download the manual. You've got a great calculator.

[@militantpacifist4087]

I like how the book comes in sections, like 1.1 and 1.2, just like a math textbook does too.

[@carson5702]

I didn't realize that lol

[@thesalmonwholaughs]

"I'll head to the Funk menu and hit some abs" Never before have I laughed so hard at such a serious statement

[@Bugatti412.]

Thank you soooo much for this amazing and helpful video. I am about to be a 7th grader and I qualified for the Algebra 1 class. This video answered all of my questions and cleared all my confusion!

[@KermMartian]

You're welcome, and congratulations on qualifying!

[@Jojoyness]

Hey! What can i say? This video helped me so much. My aunt brought me a TI-84 Plus calculator, and i didn't know how to use it. Well, i still have a little bit troubles with it, because i don't speak english perfectly, but i'm learning! So, with your help, i finally could understand how to delete number by number instead erase ALL. So, thank you so much! I send you greetings.

[@KermMartian]

I'm glad I was able to help you use your calculator! Feel free to ask any questions, and to pick up "Using the TI-84 Plus, Second Edition", if you think the book might help you.

[@ikhouvanpizza8316]

i just got my calculator for school a few dyas ago, and i am planning on getting to know it really well while i still have summer break, your tutorials will certainly help! (it's also really funny how people like me still comment on this video from 7 years ago :D)

[@KermMartian]

Thanks! Glad they'll help. I'd make new videos, but I'm pretty happy with how these came out (except maybe some of the calculator screen videos could be a little clearer).

[@Trooper81277]

It's a very informative video and I look forward to watching the rest of the videos. My only suggestion is that maybe you should zoom the camera in closer to the screen so we could see the screen more clearly. Other than that, great video. Keep up the awesome work

[@KermMartian]

Thanks for the suggestion and the kind words!

[@kinawilliams7125]

Thanks so much! I'm working towards my master's degree and was confident until this class. You explained the questions I had about this calculator. You're awesome thanks!

[@KermMartian]

+Kina Williams I'm glad to help! If you have any other questions, I encourage you to grab "Using the TI-84 Plus, Second Edition", and/or ask them here or on Cemetech.

[@meg8008]

I had no idea what I was doing with my calculator....THANK YOU SO MUCH for posting this video and the graphing vid!!!!!!

[@KermMartian]

You're welcome; happy to help! Feel free to post any questions that come up (or of course I strongly recommend grabbing a copy of "Using the TI-84 Plus").

[@Lavachai]

great video, thank you for making this informative guide. i was so confused about the trigonometry calculations, but then realized it was on the wrong mode.

[@KermMartian]

I'm glad you were able to solve your confusion! Let me know if you have any other questions.

[@samanthanewton5718]

Great information. I was so lost using this calculator, so maybe now, after watching your video, things will go smoother for me. Thank you

[@KermMartian]

Good luck! If you find that it helps, and you need to go further with the calculator, I hope you'll consider my book as a resource as well. :)

[@tejara01]

I'm surprised you need a calculator with a last name like yours

[@margaretseymour787]

THANK YOU! I've been using a computer a decades. But this? Thank goodness for you! I will next buy your book.

[@Bowyerma]

thank you for this video, getting back into these type of calculators after almost 20 years, this is PERFECT for this.

[@KermMartian]

Glad to hear it! Feel free to ask any questions you have, and I certainly recommend the book as a clear resources as well.

[@abdulazizalshanqiti9124]

How can I use it to get the final answer to every question on the test?

[@IceColdProfessional]

Don't use it. Use toothpicks, a pencil, and paper.

[@alekh3671]

@@IceColdProfessional why a toothpick?

[@IceColdProfessional]

@@alekh3671 Toothpicks to represent numbers.

[@alekh3671]

@@IceColdProfessional ohhh okay

[@bwyan22]

Just got out of the military and I'm starting school for my BS in physics. Tried figuring out my calculator and was a little confused which made me double think my major ahahahahah, but this video helped me grasp it all now. You're awesome man, thanks for putting in the time to help explain this!

[@KermMartian]

+Bryan Watts Good luck with the degree, and I'm more than happy to help! Feel free to ask if you have any questions.

[@Koploper77]

I just ordered this calculator for school

[@huntingwithjason889]

Koploper77 I’m buying one tonight to play games

[@Klopjop]

hunting with jason, buy a cheap stupid old android mini tablet

[@nothuman5335]

@@Klopjop calcs can play games decently ya know

[@Klopjop]

Rafiq Yasin yeah but you don’t have touchscreen and it’s easier

[@f3p]

@@Klopjop you can play games in class with a calculator

[@beautylover9862]

This man is a blessing

[@vvalery1522]

Hallelujah, someone to help make sense of this crazy machine.

[@jensus4252]

Just got this today for school. Thanks a lot for the video!!

[@KermMartian]

You're welcome; good luck this year!

[@airellejames5594]

I L♥VE THIS CALCULATOR!!! It is most definitely an upgrade compared to the original TI-84X! And this calculator is ACT/SAT approved it too good to be true! Kerm the real MVP!!

[@IceColdProfessional]

At first I was afraid of math. But after reading A Mind for Numbers by Barbara Oakley and THIS calculator, I wield math like a sword!

[@arnavrevankar444]

Thank you so much for this video. I'm taking the CLEP test in calculus tomorrow, and have never yet used this calculator 😅. The series has helped a lot.

[@sheeeshsinatraa5935]

Thank you so much I have psat tomorrow and I didn’t have a psat approved calculator so I’m going to the store to get one

[@KermMartian]

Good luck on the PSATs! You got this.

[@BOMBOVA]

excellent video, a lot to learn, as a teacher myself, i would think it necessary to have some simplified, block diagram, layout, patterns, of how to move your fingers around and get a generalized layout of this wonderful complex calculator, I am doing differential third order equations for radio work, radio site planning, and it is excellent,

[@pageturner72]

This is so useful, thanks for being clear concise and easy to understand

[@KermMartian]

You're most welcome; I'm glad you found me thus!

[@alsigamer3915]

my calculator has been reset. What should I do?

[@Anggea]

Thank you for this. I’m upgrading high school courses for better grades to get into post secondary after being out of school for longer then I’ll admit to… and this has helped me get back into the swing of it without struggling with the calculator too!!

[@norahrobbins3203]

I got a ti 34 when I was 11 I'm 13 now and still didn't know how to turn it off until today... I kind of do prefer my simple ti 34 because it is simple like my brain, and it's solar-powered so I don't need to carry my charger around with me because it doesn't have a charger. also thank you for making this video for simple brains like me who forget to read or try to read and can't understand/accidentally recycle their calculator instructions(i did all of those things) cause now i don't need to google everything(and i can move from basic life to advanced life)

[@nevaehlockhart3820]

this made me laugh out loud same

[@turtlewolf34]

16 now?

[@victoria8699]

this is literally helping so much!! thank youu😊😊

[@KermMartian]

You're welcome! Feel free to comment here or on cemetech.net if you have any questions.

[@cubicspider1540]

I am planning on buying this, but any calculator after/complexer than the old TI-34 from the 80's(got it from my dad) is a total mystery for me when everyone in my class uses a Classwiz fx82ex so I get so disoriented. So thanks in advance and thanks in general!

[@KermMartian]

Hope these videos and/or the book help, and if you have any other questions, feel free to ask here or on Cemetech (cemetech.net)!

[@vedantiyer8073]

I have an SAT test in two days and I have no clue how to use this before thus video

[@KermMartian]

Vedant Iyer I hope this helped! Let me know if you have any questions.

[@vedantiyer8073]

Thanks it did!

[@ruv1610]

I know this is a month late but I hope your test went well.

[@robloxgenius0009]

i miss when calculators used to be simple 😔

[@lorenzocole8166]

I hope that your still active on KZbin ? I just bought a TI-84 PLUS CE with Python. I can't figure out how to use the programs or install them.

[@RenzaBossDaddy]

Good video. It would be a lot better if you put the camera closer to the screen.

[@KermMartian]

Thanks for the feedback; will do so in the future.

[@aligator8238]

Is there any way to not get decimal answers on this calculator? for instance I want to get square of 2 divided by 2 instead of getting 0.707 for sin(45)

[@lemonscenic6207]

if you have a regular calculator I would just put that in there. I usually have one regular one and one graphing calculator. But I think you could go into settings

[@phlogchamp]

If you’re looking to purchase a graphing calculator, may I suggest a Casio fx-CG50, it retails for about half the price, and can do twice as much. (It’s got a periodic table on it and can 3D Graph.)

[@robinwilliams4161]

Thank you for this video! It helps tremendously! It was either this way or enrolling into a class to learn this, LOL

[@blackrock128]

I'm trying to generate a random number. I had math and then I scroll to the right "PROB" , then I hit 5 "randNorm" . But every time I hit 5 I get a weird message, it says lower upper and paste? What does that mean?

[@KermMartian]

It's asking you for the upper and lower bounds of the random number to generate. You can disable these so-called "Stats Wizards" in the [MODE] menu if you want. If you're trying to generate either a random integer or a random floating-point number, you should also look at rand and randInt.

[@blackrock128]

KermMartian thank you so much! That was bothering me for quite some time. I disabled stat wizard now my Calculator is looking like everyone else in the classroom. I have a question. Do you recommend start wizards to be on? Is it something that you recommend? Or just depends on the situation that you're in?

[@KermMartian]

Happy to help! I actually prefer to leave the Stas Wizards off (disabled) myself, but a lot of teachers expect them to be enabled.

[@IceColdProfessional]

I'm thinking of getting one of these just to make my classes more interesting and fun.

[@KermMartian]

You should!

[@rwcpc3334]

Can change * to x represent multiplication symbol?

[@KermMartian]

You cannot, I'm afraid. The calculator only represents multiplication with *.

[@baileystagner7347]

Mine won't turn on or off it turns off by itself after a few mins but then when u press on it doesn't turn on and I have to plug it in to turn it on and then when it is on and I press 2nd and the on button it just momentarily dims the screen a bit and doesn't turn off, please help school starts soon!!!!

[@KermMartian]

It sounds like your ON button might be faulty. To double-check, hit the little RESET button on the back with the tip of a pen, and see if that fixes it. If not, call 1 800 TI-CARES and see if they'll replace it under warranty.

[@jacobfolkerts4143]

Wow this actually helped so much thanks man

[@KermMartian]

Glad to hear it! Please don't hesitate to ask (or grab the book) if you have any questions.

[@lizettehuerta6513]

Excelent video, very helpful

[@KermMartian]

Thanks, glad to hear it!

[@ZizoAwady]

Thank you so much for this video, Realy it's helpful

[@KermMartian]

You're welcome! Let me know if you have any questions.

[@mehreenm5285]

My calculator says "error" when I try to input the absolute value of -3.2

[@KermMartian]

Make sure you're using the negative symbol (the [(-)] key), not the subtraction symbol (the [-] key).

[@ianruiz-arroyo57]

It’s just 0 though

[@warpromo6636]

@@ianruiz-arroyo57 its 3.2

[@MAVENdeNYC]

@@KermMartian everything in the video worked except for this. I tried abs -3.2 but when I hit enter it gave me 3.2, not -3.2. I also tried closing the parentheses but same thing. Could it be this is an older version or is the answer 3.2 and not -3.2? Thanks.

[@KermMartian]

@@MAVENdeNYC abs(-3.2) should indeed be positive 3.2, as the absolute value of a negative number is that number, but positive.

[@ghostfreak1309]

Man, I literally CAN'T do math without a calculator. Not even highschool. Lol! Thanks for the tutorial.

[@yugiohwithlo1392]

Awesome videos. I've just ordered 2 copies of your books. One for me and one for my grand daughter from Amazon.

[@KermMartian]

Thanks very much! Let me know if you have any questions I can answer, or feel free to stop by the Cemetech forum ( www.cemetech.net/forum ), where I've collected a friendly group of volunteers who can also help.

[@yugiohwithlo1392]

Thank you for commenting back to me. I'm in the 2.4 section of the "using the ti-84 plus" book. This book is very clear and easy to use. I recommend people who want take advantage of the ti calculator. I'm only in chapter 2 and I've learned more about using the calculator in this book than my whole life time. I'm 46 years old. This book is so addicting. I can't seem to put it down. Every page has some great examples to do. If I had to compare this book to would be like a Final Fantasy XIII strategy guide. I love playing Final Fantasy XIII and with the strategy guide. The game is even greater to play, finding secret treasures and weapons. So this "using the ti-84 plus" to me is a strategy guide book for calculator and all it's powerful apps. That's one of the reason I can think of. I read a little bit about the ti-basic too. I can't wait to order your "Programming the TI-83 Plus/TI-84 Plus". It' going to be another addicted book to have. I'm ordering 2 copies again for me and my grand daughter. To just have a complete collections I'm going to get the using ti-84 plus 1st edition from 2012. It's going to be awesome. Just want to say thank you Christopher R. Mitchell for these great books. I hope whoever loves using the ti calculator will get these books. It is a priceless knowledge to have. I can't wait to get those other two books. I do have one question. I upgraded to the 5.2.2 os and I can't seem to be able to drag any of the games into my calculator using the ti connect. But it's a simple taste that I can look up. I just wonder if it's an issue or it's just me not knowing what I'm doing. Thanks again.

[@KermMartian]

Thanks for the kind words; that means a lot to me. I hope that you'll find programming the calculators to be another exciting challenge. Are these games that worked correctly on your calculator before you put OS 5.2.2 on it?

[@yugiohwithlo1392]

KermMartian i went to you cemetech site and down loaded that pacman game and try to put in my calculator. never done this before. but all the program i got from ti education channel worked. when i draged the pacman or any other games to the connect, the copy logo doesn't come up. but all the files from the ti education 5.2.2 will copy over the ti connect. it's no big deal. thanks for your time

[@marwakatir38]

When I type my exponents the cursor doesn't become small so instead what shows up as 3^3. How do I fix that?

[@nicholasberghoefer1987]

Marwa Katir To do this you have to enable MathPrint. To do this hit the mode key, and the first line should have two options: MathPrint, and Classic. Select MathPrint. If these options don't show up, you need to update your operating system. You can look up how to do this on youtube, or you can ask your math teacher to do it for you, most know how to... Hope I helped!

[@yaboidraco6215]

Nicholas Berghoefer I know this comment is old but jeez this comment just stopped my frustration with that same problem

[@gclady1536]

This was helpful. Thanks much.

[@millions2nette]

keep getting the wrong answer when I do a negative integer with an exponent...ie, -1^4=-1 or -5^4=-625...I'm getting wrong negative signs...Please help if you can. thanks.

[@KermMartian]

This is an unfortunate but logical result. The exponent sign has higher priority, so it's applying the exponent first (giving you 1^4 = 1 or 5^4 = 625), then applying the negative sign. You can solve this with parentheses: (-1)^4 or (-5)^4. Good luck!

[@rachellin2709]

I want to know how to press the equal sign. not enter. like for ex: 38.46x ÷ 67.3 = 7. find value of X. how do I press "="

[@KermMartian]

Your calculator can't do that on the homescreen. However, there's a Solver in the [MATH] menu that can find the value of X given such an equation; the book ("Using the TI-84 Plus") explains how to use it. However, surely you can do that by hand, by multiplying both sides by 67.3 (38.46x = 7*67.3), then dividing both sides by 38.46 (x = 7*67.3/38.46). It's very simple algebra. :)

[@jadapinkett1656]

I'm so glad I don't have to deal with this mathematical nonsense anymore.

[@guillermogonzalez9931]

I bought my TI-84 Plus CE but it is a little bit difficult for me understanding everythibg about my calculator, because all the videos are in english (I'm a spanish speaker), however I got many things as I can, thank you for made the video.

[@Enlightenchannel]

nice stumble at 13:38 must've forgot to splice that out eh lol

[@JustNabi33]

I have the ti 84 plus silver edition and I would like to know how do you make the screen of the caculator so bright

[@usernameusernameusername9835]

Press 2nd, and either⬆to turn up brightness or ⬇ to turn the brightness down.

[@moonlightdreamerwolf272]

My calculator is stuck in the graph with the table L1 and L2 next to to the graph how do I get out of this

[@KermMartian]

I assume you've solved your problem by now, but if anyone else has this issue, you can go to [MODE], look for the row with "Full Horizontal Graph-Table", move the cursor to "Full", and press [ENTER].

[@Sniffanyy]

Question: When you erase the memory, will you delete the preinstalled apps?

[@KermMartian]

Nope! And if you do ever happen to delete those preinstalled Apps, you can re-download them for free from TI's website.

[@Sniffanyy]

+KermMartian Thanks for the quick reply!

[@markfalina9160]

Do you have a book like this which will teach me how to use the Nspire since it has a different keyboard than the TI-84 Plus or is the difference not noticeable enough to warrant one?

[@BlackDuke235]

Great video, based on this I just purchased your book. I didn't know which one to get, as there are so many, but watching this video made it an easy choice. What happened at 13:35, did the crypto drop off? Just kidding, we've all done it and forgotten about it in the edit.

[@kper8145]

I have an nspire which makes everything much more simple but I am fascinated by this and might buy one of these.

[@FrayHavoc]

Did you include a blooper in this XD

[@CoreyHero1223]

how can I put formulas in the notes so I can take a look at it later?

[@KermMartian]

Which notes? Depending on which calculator model you have, you can use programs like Document DE to view text files on your calculator. You can also use SourceCoder ( sc.cemetech.net ) to type programs on your computer that you can edit and run on your calculator.

[@CoreyHero1223]

+KermMartian like formulas

[@KermMartian]

The instructions above should do the trick.

[@mattseh]

Is there a setting on the ti 84 CE that allows the user to get simple exponent answers? (i.e 3 square-root 2)

[@KermMartian]

No, unfortunately. The French version of this calculator, the TI-83 Premium CE, has an exact math engine that will do things like simplify radicals for you. Because of pressure from exam boards (eg, the SAT board) and teachers in the US, the TI-84 Plus CE has no such feature built-in. However, hopefully one of Cemetech's members will make a program to replicate this functionality soon. You can check out what's already available at www.cemetech.net/programs/index.php?mode=folder&path=/84pce/basic/math .

[@krystal31]

When your father's company supplies to Texas Instruments so they give you a calculator for free but it's just a calculator and you hate math.

[@KermMartian]

But what if you also use it for gaming when you're done with math? kzbin.info/www/bejne/hJa6h2WPgrxmbLc

[@imaladywith3]

very good explanation.

[@admirealyssa3079]

Do you need to buy a charging usb or will it come with one? I just ordered the calculator

[@SomePerson_Online]

Tomorrow I start my junior semester, last year we were just given the calculator, they didn’t teach us nothing

[@theprofunnygamer1731]

Where's the equals key? For example, how do you do 2x+20=14?

[@KermMartian]

The TI-84 Plus CE can't solve algebraic expressions like the on the homescreen. However, if you go to the [MATH] -> Solver... tool, you can enter 2X+20 as one side of the equation using the [XT0n] key, 14 on the other side, and press [ALPHA][ENTER] to solve.

[@brookelynngotschall3029]

Thank you so much these were so helpful

[@KermMartian]

You're welcome! Good luck.

[@PennsylvaniaEAS]

is there a video for the regular ti84 and not the ce?

[@rmdir]

Very helpful thank you.

[@KermMartian]

You're welcome, glad to hear it!

[@acnaji]

Hi, is MathPrint enabled on the calculator by default? If not, how can you activate it?

[@carinacalixto8441]

I got my calculator yesterday and I want to recharge it and when I use the charger the gave me seems to be loose on my calculator. Also the description says it lights up when charging or something like that but mine doesn’t it’s just plain gray

[@KermMartian]

The LED that's next to the USB port on the side should light up orange (charging) or green (charged) when you plug it in - if you suspect a problem with the charging cable that came with the calculator, try another mini USB cable. In addition, the earliest TI-84 Plus CE models had a somewhat defective port, where you had to really jam the cable in to seat it properly.

[@ahmedalkhelossi3766]

Hello how i can change type answer like 5×10^-8 = 5e-8 to type 5×10^-8 = 0.0000005 ?

[@KermMartian]

In the [MODE] menu, there's an option to switch between Normal, Sci, and Eng notation.

[@ahmedalkhelossi3766]

I know that but if the number 5×10^-3 = 0.003 and it work but if the number 5×10^-8 it not work still sow it 5e-8

[@KermMartian]

Ah, I see. There's no way around that, I'm afraid; it'll automatically switch to showing the answer in scientific notation if it would be too many digits otherwise.

[@travissmart132]

There is switch the answer to either decimals or fractions

[@StephanieHughesDesign]

Is this still TI's most recent model? Also, I am wanting to purchase a calculator for Mathematics for Economists, Data Science (prob + stat) and Financial Analysis. Is the TI-84 good for statistics, probability, uni-variable and multi-variable calculus, time series, regression, correlation coefficient, linear algebra and full notation support?

[@KermMartian]

The TI-84 Plus CE is indeed still TI's most recent model. It will do statistics, probability, time series, regression, numerical calculus tasks like definite integrals and derivatives at a point, and numerical linear algebra. It does not have a CAS (Computer Algebra System), so it cannot do symbolic indefinite integrals and symbolic derivatives, and other symbolic tasks. I hope this helps!

[@StephanieHughesDesign]

Thank you KermMartian. Excellent analysis. Does the linear regression, matrices, probablity, statistics, linear algebra, uni-variable and multi-variable calculus, time series, functions all come native out of the box or do I have to download these as plugins? I am mostly using it for Mathematics for Economists and Financial Analysts as well as Data Scientists and Policy Analysts. Data Science as an example is heavy probability, regression and statistics. I am embarking on MA in Econ - using Math for Economists and Econometrics and Financial Economics as well as Data Science using "r". Is the color version worth purchasing instead of monochromatic?

[@KermMartian]

All of the features that I mentioned are available in the TI-84 Plus CE come as part of the built-in OS. With Back-to-School sales (see www.cemetech.net/news.php?id=863 ), the color one is actually cheaper than the monochrome one in many cases.

[@aegis5021]

Do the colors matter? I noticed that there was a white, black, blue, and red one, but they were all different prices.

[@pa_u_los]

kzbin.info/www/bejne/kKLMgKxsp8qJfMk - No, the color is for personal preference, there is no difference. I suppose the cost difference might be the cost of the color.

[@jayyli7204]

There’s also a pink one?

[@CuriousFear]

How long is the battery life?

[@KermMartian]

Somewhere between 10 and 14 hours per charge, in my testing. If you use it for a few hours each day, you'll need to charge it at most once a week. I sometimes use my Radical Red TI-84+CE a few minutes a week, and it lasts for months between charges.

[@CuriousFear]

KermMartian Thanks for the quick reply.

[@xyzzy-dv6te]

Well, the batteries of TI-84+ lasted for years.

[@m1ten293]

xyzzy51273 CE is rechargeable

[@supernoot3949]

Heyo! I have a question. How do you enter sin, tan, and cos without the parentheses in the calculator because I'm trying to run a program and it requires sin, cos, and tan to have a comma after them

[@KermMartian]

The only way to do that would be to literally type out 'S', 'I', 'N', ..... What program is this? I'm concerned that it's not something that's compatible with your calculator, if you're trying to type the code out yourself.

[@alandennis9753]

Where do I send the tres leches cakes for you??!!

[@KermMartian]

Directly into my face, please and thank you. ;) Let me know if you have any questions!

[@AliHassan-hb1bn]

Deep things yet unknown, I want to use it flexibly, even animations are there. We don't yet know many thing about the device. Please

[@AgameR_Gaming]

What is the difference between CE and CE-T?

[@KermMartian]

The difference is negligible. The CE-T is the European model with a testing LED; the CE is used in the rest of the world. They're functionally identical as far as math features.

[@AgameR_Gaming]

KermMartian Thanks.

[@maryz8157]

Thank you for this video! So helpful! Is kemah technet still available?

[@pa_u_los]

What is kemah technet?

[@FlakAlley]

How much text can i store in this? Also can i even store text here?

[@KermMartian]

You can create programs that store text, and you can also use text editors (like TextEditor CE on Cemetech, at www.cemetech.net/programs/index.php?mode=file&path=/84pce/asm/programs/TextEditCE.zip ) to view and edit text on your calculator.

[@붕-r9p]

I don’t know why but my calculator just stuck at the graphing pg and can’t go to home pg. what should i do??

[@MAVENdeNYC]

Did you try “2nd” then “mode/quit”?

[@anachavez4549]

how do I change decimals to fractions?

[@corbinmorales102]

All you have to do is type alpha > y= > enter.

[@corbinmorales102]

If you at multiplying, dividing, ect... Then you use that to type fractions

[@vanderlarss]

excellent

[@goldenraspberries713]

How do we calibrate the "window" settings?

[@KermMartian]

+GoldenRaspberries Just tap the [WINDOW] button at the top-left of the calculator's keypad. See also Chapter 3 of www.amazon.com/dp/1617293156 .

[@lazerjon1st]

Where is the percent symbol?

[@KermMartian]

There isn't one, I'm afraid. You'll just have to divide by 100 or multiply by 0.01 when you need a percent.

[@yanadanielyan5822]

Thank you so much, this was insanely helpful

[@KermMartian]

Glad to help! Good luck with your calculator.

[@edwinprosegegur8462]

Hi, I have a questions, the calculator is possible change de lenguajes to spanish?

[@user-hn4en7lx7l]

I don’t know if spanish is available, but if it’s available press mode and you i’ll see language at the bottom.

[@KermMartian]

Slow response, but yes, you can. Just install this on your calculator, and then go to the Apps menu and run it: education.ti.com/en/software/details/es/B36DBB231B6E40FF87A86B0BE9B57812/language-localization-app

[@SteelViko]

I have the Measure Mint color.

[@Uneeq1]

I wish it was a bit closer

[@jamielee8624]

bro nic video man this really helps me u aweseom

[@sayrecargill314]

thanks so so much oh my gosh!! this helps so much, i was so confused! haha

[@aliyahehr6137]

How long will the battery last?

[@KermMartian]

I've used it for 8 continuous hours and barely dented the battery life, or gone 6 months without charging my calculator (and using it every week or so).

[@priscillaaasky]

Tis was very helpful