What is Ti-84: Definition and 65 Discussions

The TI-84 Plus is a graphing calculator made by Texas Instruments which was released in early 2004. There is no original TI-84, only the TI-84 Plus, the TI-84 Plus Silver Edition models, and the TI-84 Plus CE. The TI-84 Plus is an enhanced version of the TI-83 Plus. The key-by-key correspondence is relatively the same, but the 84 features some improved hardware. The archive (ROM) is about 3 times as large, and CPU about 2.5 times as fast (over the TI-83 and TI-83 Plus). A USB port and built-in clock functionality were also added. The USB port on the TI-84 Plus series is USB On-The-Go compliant, similar to the next generation TI-Nspire calculator, which supports connecting to USB based data collection devices and probes, and supports device to device transfers over USB rather than over the serial link port.

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  1. barryj

    How to display a normal CDF graph on the TI-84 calculator

    I am not sure where to ask this question but I must try somewhere. 1. Homework Statement I am trying to graph a simple cdf on my ti-84 and I cannot get it to work. I need an example to follow Homework Equations See below. The Attempt at a Solution 2nd, dist, 2 enter -1E99,0 0,.5 [/B]I also...
  2. A

    Calculators TI-84 Plus stats as function

    Hi, I wasn't sure where to post this. I have a chemistry homework problem, which is not necessarily that hard, but it wants me to put values into my TI-84 Plus. I will not explain the problem too deeply, but it's about reaction time, volume, and concentration (mol/L). I am given a table of...
  3. Jack-Frost

    Calculators Ti-84 Plus CE vs Ti-Nspire CX

    I'm a college student and my old ti-84 plus silver edition just broke. I'm looking to get a new one that'll take me through discrete math, and advanced calculus classes. I'd like to get either the Ti-84 plus CE or the Ti-Nspire CX but I'm not sure of all the differences between them since it...
  4. G

    How do I find the equation of a derivative using a TI-84?

    I want to know how to do this so after I find the equation by hand, I can check to see if I am correct.
  5. D

    Calculators TI-84 Rounding Error in Fraction Mode

    I had a student calculate ##\tan\left(\frac{5\pi}{6}\right)## on a TI-84 calculator and he had a rounding error in the 6th or 7th decimal place. This isn't really a big deal, but he asked and we quickly found out it was because he was in fraction display mode. I don't know too much about...
  6. lonely_nucleus

    Calculators Can TI-84 calculator send text messages or email?

    Well the texas instruments ti-84 calculator is my favorite toy. I use it for anything I can from getting a girl to put her phone number in my calculator to programming. Is there a way to somehow add an external circuit that can make the ti-84 send text messages. I bet there would have to be a...
  7. J

    Calculators Ti-84 Plus C Silver Edition vs Ti-Nspire CX

    Hi all, I'm new to this forum and I'm wondering which calculator I should get. I'm planning on taking the ACT so I can't get (use) a Ti-89 titanium or a Ti-nspire CX CAS. I'll taking AP Chemistry, AP Calculus, AP Statistics, AP Biology, AP Physics, and AP Computer Science. Thank You!
  8. J

    Calculators Is there a way to run TI-84 plus apps on the C-Silver Edition

    Is it possible to run TI-84 plus apps on the TI-84 plus C silver edition? If so, how do you do it? I'm not trying to run games or anything, just regular old apps. When I try to send the files to my device I get an error message.
  9. teetar

    Calculators TI-84 Plus Calculator Cannot Perform Log Function (Err:Argument)

    Hello I have a TI-84 Plus calculator and during my math class we were doing log functions on the calculator and I was met with the err "Argument". I don't know what this means, but from what I've heard my calculator is missing the required software to run a log. I should clarify that when I say...
  10. S

    Calculating Spearman Coefficient on a TI-84 Calculator

    Is is possible to get the Spearman coefficient on a TI 84? Not the Pearson, the Spearman.
  11. S

    Need help with basic confidence interval question - TI 84 Plus

    Hello, I need help using my TI 84 to figure out this 4 part question. My professor went over it way to quickly in class, when showing us how to do it on the TI 84, I believe its only a few quick steps for each part though. EDIT: I have figured out part d, but am still struggling with parts a...
  12. S

    How do I find Sxx, Syy, and Sxy on my TI84 graphing calculator?

    Hello, I'm not sure if this is the correct section to post this in, but I need some help with my graphing calculator. I also posted this in the Statistics section. I am given a set of X and Y data (2 sets of numeric data) and I need to find out how to find the Sxx, Syy, and Sxy in my TI84...
  13. C

    Which Calculator is Right for Me?

    I need a new calculator for Highschool. I am looking at either the TI-84 Plus Color Silver Edition, TI-89 Titanium or the TI-Nspire CX CAS. I plane to major in computer sciences and become a programmer so I am looking for a calculator that is good for programming. Thank you.
  14. N

    Calculators Looking for a program for the Ti-84

    I'm looking for a program that can solve problems like this but ones that are more complex. http://i.imgur.com/8Rj8C4Q.jpg
  15. M

    Calculators Graphing Calculator-worth it?

    Graphing Calculator---worth it? I plan on majoring in either computer engineering or electrical engineering (have yet to take any related classes, so we'll see how long that lasts) and my calculus 1 teacher recommends that we have a ti-83 or 84 (made it through precalc with a B without it), but...
  16. L

    Calculators TI-89 Titanium or TI-Nspire CX CAS?

    Hi. So, for the first time my younger sibling will need a graphing calculator for their classes so I'm giving them my TI-84 Plus and getting myself a new, better one. Right now I'm a Junior in high school taking ap-chemistry, ap-physics and ap-calculus AB. Next year I'll be taking calc BC (my...
  17. A

    Calculators TI-89 won't graph whole function?

    When I try and graph x^(2/3) in my TI-89, it only graphs the half of the graph where x>0. My TI-84 gives me this: But my TI-89 only gives me the right half. Is one of my settings wrong?
  18. M

    Calculators TI-83/84 sets of numbers/set theory

    Here's what I want to do on the calculator. 1) Input sets of numbers, for example 3,6,9... in any notation, for example {3,6,9,infinity} or {x|x/3 >= 1 >= infinity} 2) use set theory (not now, but when I get into pre-cal/college.)
  19. MathWarrior

    TI TI Nspire CX CAS How do I input full fractions and 84-Plus mode?

    I have been trying to figure out how to plot a differential equation using my TI Nspire with very little luck. I managed to find that I can set the graph of the calculator to a directional field but I am not 100% sure I am getting the right results. So I figured I would ask to see if anyone here...
  20. J

    Calculators Why does the TI-84 give strange answers for sin of multiples of 2-pi?

    Something I've noticed that no one has ever been able to sufficiently explain to me is taking the sin of multiples of 2-pi. Sin 6pi, 8pi, 12pi. You get silly answers. For example, sin(6pi) gives you -4*10^-13 instead of 0. I've never been able to get a satisfactory explanation. Most people...
  21. M

    Calculators How to check your answers using a TI-84

    It's simple. 1. Press the Y= key. 2. For Y1, enter the left side of the equation. 3. For Y2, enter the right side of the equation. Note: You have to write the equations so that x + y = 7 becomes y = 7 - x or 2x + 4y = 10 becomes y = (10-2x)/4. You can only have one independent...
  22. E

    Program for Sin(x^2) MacLaurin Series

    I'm currently attempting to design a program on my ti-84 calculator (ti-nspire w/ 84 faceplate) to provide an approximation of the sin(x^2) as accurate as I would like the sum the reach. I attempted to input a formula for such, sum(seq((-1)^(Z-1)*X^(4Z-2)/(2Z-1)!, Z, 1, n, 1)), "Z" being the...
  23. M

    Calculators TI-83/84 Plus - Storing polynomial functions

    Unless I'm missing something here, I've noticed that if you want to store a polynomial function on the TI-83 or the TI-84 Plus, you have to create a program that asks you what the value of x is, then displays the value of f(x). I kind of wish I could define a function without making a program.
  24. V

    Calculators Using the TI-84 Plus Silver Edition's Buttons as Pictures in MS Word

    When some people explain how to do a certain calculation through a presentation, I sometimes see these presentations use the buttons necessary to press as pictures. For example, I've seen presentations tell me how to graph certain functions and, instead of saying press "Y=," the presentation...
  25. K

    Calculators Help TI-84 CONICS App is Giving Trig Formulas

    TI-84 HELP! The formulas under the CONICS app keeps converting into trig... It saying a circle is x=rcos(T) + H instead of (x-h)^2 + (y-k)^2 = r^2 How do I get the 'normal' formulas back? PLEASE HELP!
  26. N

    Calculators Newb with a TI-npire CX CAS

    I'm taking an online "Elementary Algebra" class from my local community college. It's been a few years since I graduated high school and I've forgotten pretty much everything; including my T-84 Silver, which I never took full advantage of its potential anyway. So I went out and got myself a new...
  27. L

    Calculators What is the best calculator?

    I am currently a junior in high school. I have a TI-84 plus silver edition. My parents are letting me give my old calculator, the TI-84, to my sister and let me buy a new calculator. What would be the best calculator to get? I am planning to be an engineer and need a calculator that is approved...
  28. F

    Calculators Lost Ti-84 Cable: How to Recover and Save Money on Replacement

    It's basically that cable that hooks up your computer to your Ti to download programs. I lost it, is there anyway to recover it? I went to Amazon and found one, but the cost to ship it is even more expensive than buying a new one... Anyone know any better way?
  29. S

    Calculators Problem with TI-84 Calculator

    I wasn't sure where to lost this thread so I decided to put it in general discussion. So anyway, on my TI-84 graphing calculator I have been having this weird problem, once in a while a setting will change on its own( not sure how) and then the calculator would stop letting me graph...
  30. R

    Calculators Using TI-30XA: Solving 50e^(-.00043448 * 5000)

    Im not allow to use TI-84 anymore and have to use TI-30XA. I need help putting in 50e^(-.00043448 * 5000). I did -.00043348*5000 first and got -2.1674. I have problem with this part. On the TI-84 I can do it but having trouble on my new calculator. I type 50e but it gives me 5.184705529^21. What...
  31. T

    Calculators Integral program for TI-84?

    I don't know if this is the right place to post a question like this...but help? Does anyone know of a good program that can be downloaded to a ti84 that can solve integrals? It doesn't have to show the steps...just an answer [that you could check while doing homework...if you don't have...
  32. W

    Calculators Ti 89 Graphing Help: Fixing "Not an Algebraic Expression" Error

    So I have a project due tomorrow and I really need to use a caculator and Mine won't work right. When insert -1x/(x<o)/(x>-1) It saids its not an algebraic expression how do I fix that. I try it with an ti 84 and it worked.
  33. L

    C/C++ Is there a C++ compiler for TI-84 calculators?

    Hello PF! I want to create a program/database that is capable of doing everything that I need it to, calculations, conversions etc. I'm currently learning C++ in school, and was wondering if there was a C++ compiler for TI-84 calculators. It would make it much easier for me to program...
  34. T

    Calculators Graphing Sinc Function on TI-89 and TI-84 | Step-by-Step Tutorial

    how to graph sinc function on ti-84 sinc(x) = sin(pi X) / pi X solution: sinc(x) = sin(pi X) / (pi X) yes it was that simple!
  35. J

    Calculators TI-84 Plus for $79.99 after rebate, Sun/Mon Only

    I just got my Staples ad for the coming week via email, and saw they have advertised for two days only (Aug 23 and 24) TI-84 graphing calculators for $79.99 after rebate. No, I do not own, work for, or have stock in Staples...but this is the lowest price I have ever seen for this graphing...
  36. I

    Calculators Problem Uninstalling Programs from TI-84 Plus Silver Edition

    I am having a problem deleting programs from my TI-84 Plus Silver Edition. This is the first time that I am trying to uninstall a program. I am trying to uninstall "Inequalities" and "Transform", so that I can install "Graph 3". "Graph 3" does not install if "Inequalities" or "Transform" is...
  37. T

    Solving Problems With a TI-89 Titanium for Physics Lab

    I know i have a calculator that is way more advanced that what my class needs and that is my problem.. everyone is using a ti-84 plus or something and I am using a ti-89 titanium... but any ways during a physics lab the class did a simple graph using their ti-84's and as i am trying to convert...
  38. E

    Is the TI 89 still useful or not?

    I am a first year Petroleum Engineering student and I currently use a TI 83+. However, the TI 89 comes recommended from my math professor and TA. I have two questions: 1. Should I get one? It is that much more useful? How so? Pros and cons? 2. Should I get a TI 89 or a TI 89 Titanium? I've...
  39. B

    Calculators Using the ti-89 for Physics.

    Hi, I am pretty good with my calculator, but I am beginning to notice that my ti-89 titanium has many features that I am not making use of when I am working on my physics HW or exams. I am not talking about programs that can be downloaded, but the built-in features. I am wondering if...
  40. D

    Parameterised functions

    Hi, I have a TI-84 Plus Calculator and wonders wether it is possible to have two more of the parameterised function slots. I need to graph eight functions, but there is a restriction of six. Do you know of any good ways of solving an equation on the calc? It is long and complex (but real)...
  41. B

    Calculators Graphing Calculator: - TI84 vs Casio CFX9850GC+

    I'm about to buy a graphing calculator, and I don't know whether to get the Texas Instruments TI-84 (Silver Edition), or the Casio CFX9850GC+ (which has the added frivolity of a colour screen). I can't get the TI-89, because it has algebra software built in, and so I'm not allowed to use it...
  42. A

    Calculators How to add more funtions on Ti-84 silver

    I need to get more than 10 funtions on a graph and ti84 has max of 10 graphs. is there anyway to increase it? someone told me i need to take a screenshot and than do it over it or some how >_> please reply FAST PLZPLZ i need my homework DONE AHHH
  43. K

    Calculators I have a few questions regarding the ti-89 titanium

    i just bought one of these calculators and so far am loving it. i used to use a ti-84 silver edition and it had statistics tests intervals and distribution things built into it. on the 89 it is not there and i have to install a separate app. but the problem is if the calculator is reseted then i...
  44. D

    Calculators Original TI-89 or Titanium

    Hello all, I am a high school student, who will be taking Calculus I, I need to upgrade from my TI-84+SE so I am considering either the 89 or the Titanium. The only differences I know of are the memory and the processor speed. Are there any other differences? Which have you guys used and...
  45. W

    Calculators Running Programs on ti-89 titanium

    I am using a ti-89 titanium for maths this year(my first graphics calculator) and in class we covered some basic programming for ti-84(the minimum calculator for this year). I made some basic formulae programs but now i can't find how to run them. Can anyone point me in the right direction?
  46. M

    Learning Euler's Method for Differential Equations

    We just started learning how to find diffrencial equations using the eulers method. I heard there is a programm in a calculator that let's you do that. I have a ti 84 I don't know the name of the program if you can be kind and give me the website it would be appreciated. My calculus book had...
  47. D

    Calculators Which Calculator is Best for College Math Courses: TI-83, TI-84, or TI-89?

    Hey all. I'm a freshman in college. I'm in the Computer Science BS course, and am just about to start our 2nd semester. According to my suggested scheduling for my course I will be taking Tech Math II, Calc 1, Calc 2, and Differential Equations. I do not own a graphic calculator, and...
  48. K

    Calculators Program for TI-86 to Read Text on Calculator

    Just wondering if anyone out there knows of a program that I can add about a page of text to my ti-86 calculator. Basically I don't have time in the morning to read the news & I'd like to copy articles then read them on my calculator at work :tongue:. There is the program notefolio but it's...
  49. M

    Calculators Ti-89 Titanium at bestbuy for 119.99

    Ti-89 Titanium at bestbuy for 119.99(ALL TI 20% off) http://www.bestbuy.com/site/olspage.jsp?skuId=6621426&type=product&id=1082119968052 GRRRRR, I payed 20 dollars more a few days ago :cry: So if you want to buy a new calculator, they have 20% off all Ti calculators this week. They have...
  50. T

    Need a little help with my Ti-84+ (its graphing the wrong thing)

    I'll put in an equation using the y= function, that I've found out on my own, and I know to be correct, yet when I hit graph, lately the slope will be wrong, and the line will be in the wrong place, I've even reset the ram, to no effect. When I go into the table none of the original points I...