Ti-89 Definition and 163 Threads

http://sudokupuzzles.net/SCREEN.gif Regarding a=@16... and in particular the symbol that looks like @ , what does @ mean? Thanks in advance; this has been bugging me for a long time.

Hello! I was hoping that someone would be able to assist me... I have a TI-89 and am trying to get a normal decimal answer for a trig problem... EX: I do something like: 18/sin(95)*sin(37) If i press the green diamond key and then press enter I get 1.[SIZE="1"]E1... If i do the same...

Which is best? I have the TI-89 but I am curious about how it compares to the hp50g. Does the hp have ebook reader apps or note making apps. can the screen resolution be adjusted to increase the size of the character font etc. Does the hp have good 3rd party app support. the TI apps are...

Does anyone know any good links for TI-89 3rd.party apps?

Hello all, My first post here and sorry it is not very scholarly. lol I am currently taking Algebra 2 and am completely lost as how to find the answers to simple equations and expressions such as the ones below. Can anybody help me out or if you own a TI-89 Calc and know how to perform...

I have recently purchased a TI-89 Titanium graphing calc.. although there were two cables included, none of them are able to connect my calculator to my comp? wth i thought they said they included a "computer usb" cable to connect to PC.. clearly the usb cable included is not able to be fitted...

Hi, I was, earlier today, deleting some unused flash applications from my Ti-89 Titanium that were wasting space. Namely the localization things like Cabri Deutsch and Francais and stuff. After setting it to delete a few files, my Ti-explorer on my computer stopped responding, and and so...

Hi, my cousin just gave me his Ti-89 Titanium calculator so I can use it for my classes which require heavy math, but it has a problem. The calculator will not shutdown and the screen will only go blank for a second and turns back on to its original state when I press 2nd and off to shut it...

[SOLVED] TI-89 integral Homework Statement My TI-89 says that \int \frac{1}{\cos x} dx = \ln \left(\frac{-\cos(x)}{\sin(x)-1}\right) which is just wrong isn't it??! See http://en.wikipedia.org/wiki/Lists_of_integralsHomework Equations The Attempt at a Solution

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...

After looking for programs for advanced physics with no luck I decided to write my own. What I have so far is a simple program to calculate relitavistic velocity: (v1,v2) Prgm:Local Input "Enter velocity 1" .v1 Input "Enter velocity 2" .v2 If v1<0 Then (v1+v2)/(1+(v1*v2))»vr...

I was wondering if any of you knew of any programs for the TI-89 that deal with relativity. I've searched with Google but get nothing.

Hi, I'm trying to figure out my TI-89. So I want to estimate the 40th partial sum of this series: Sum(40) of (-1^(k+1))/k^4, starting at k=1. My major problem is that I want to use 'k's or 'n's, not 'x's. Is there a difference? I haven't asked my Calc teacher about this yet, but I know that...

is there any quick way to convert numbers to fractions then back to decimals, without changing the mode. also if i type in log 54, it gives me log 54. i don't get an answer even if i put in ln 32 it gives me ln 32, not an answer. i've learned to input functional equations and make...

TI-89: Can I Get Commas to Separate "000"? Is there a way that I can set my TI-89 up so that when it shows large numbers, there are commas separating the "000"? Thanks, Mike

TI-89 titanium "RandInt"? for my class we did a quick programming of a coin toss, everyone else has TI-84s and I have the 89 titanium. How do I go about entering the function "RandInt" onto the program editor? Help is greatly appreciated! P.S. anyone who knows where I could download...

I'm not getting the right answers for sine, cosine and tangent functions. I have no idea why this is.

Homework Statement Indefinite integral of sin(x)/(1+x^2)dx Homework Equations The Attempt at a Solution

I got mine recently, I haven't used it as much, because I still have a TI-83, someone told me that with a 89 you can store equations, notes and it shows all of your work? Is that true, because I heard this from two different individual, and a third person told me that it doesn't show all of your...

So, here's the situation. I recently got a Ti-89 Titanium, and i was trying to put some games on it. I had it plugged into my computer, and i sent Phoenix, Tetris, and Falldown over to it. Going through Var-Link and selecting the program didnt seem to work, so i decided to try downloading an OS...

I had a problem doing derivatives on my TI-89 and found the solution to my problem on this forum. I had x set to a constant instead of a variable. I'm just curious how x was set to this constant in the first place. I've never (that I know of) set it to anything. Just out of curiosity, what...

Right now I'm doing Centroids in my math class. we are given two functions. X=-y and X=2y-y^2. My question is, how do I graph these two functions on my TI-89 titanium. The Y=editor is displayed as y(x). Is there a way to change it to X(y). I was able to plot it out on paper, but I use...

Hey guys. I posted here to find out how to put the below functions into the Ti-89 Titanium. And how to insert values into them. I know there are some smart people here so I decided ask for some help. Help is much appreciated! Thanks! :biggrin...

i am having trouble finding out what the diamond + stor -> key do. i don't know what that symbol means

The main difference between the two (other than the RPN which I don't care much about as I am already used to using a TI-83 which doesn't have RPN) is that the HP is powerful, and the TI has more 3rd Party support. Of that though, the things I care about most is that you can expand the memory of...

Does anyone know how to enter a mixed or compound fraction into the Ti-89 Titanium? (eg. 66½)

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...

Hi, I'm working out some problems on my TI-89 Titanium, and I've run into a roadblock. How do I put a base for a log? Thanks a lot.

I was downloading a new OS onto my Titanium the other day and after it downloaded about 25%, it gave me some error and canceled downloading. Now, my Ti-89 is stuck in a "Waiting to receive..." screen. Left+Right+2nd+On doesn't work, and neither does taking out the batteries and putting them back...

Just got a new TI-89 Titanium, can't really figure it out yet, I need help changing decimals to fractions, and fractions to decimals fast. Any ideas?

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...

I recently bought a TI-89 Titanium, and I need help downloading assembly programs. I have some assembly programs on my calculator right now, but I cannot get them to run. I searched everywhere on the official website, and eventually found out that I need something called a "shell," or "kernel."...

Hello I am new here, so please don't kill me for not searching around before posting this. I am a bit stressed out and short on time. Alright. After receiving an email from HP saying my warranty has expired, and seeing that none of their trouble shooting techniques could save my HP 49g+ I am...

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?

TI-89 Titanium INTEGRATION Flaw? Ok so this is my first post, and I am in dire need of assistance. I have a big exam tomorrow and if I can't figure out why my TI-89 is screwing up this simple integration I am in some trouble... I am looking for the integral of : 1/[G-(Cv)/M] with respect...

Hi all, found this forum while looking for a solution to this problem: When I graph a y1=sin(x) I get the sin wave you would expect. but... When I graph y2=5+4*sin(pi/12)(x+10) I get a line instead of a wave? What gives? I'm in radian, I reset my factory defaults... Am I entering...

Hey guys, I was wondering...Can I make my voyage 200(basically a Ti-89)...solve for 3 equations and 3 unknowns? If so, how? Also, I was wondering, can I make it solve 3x3 matricies, which include numbers on the lower 2 rows...but the top row(across)...has i,j,k on it. Anyway to use the...

Okay, when I type in this equation 2(-1.999^2)+5(-1.999) the answer it gives me is -2.003, which would be great, BUT I need it to be more exact, I need it to say -2.002998 (as older calculators do) I've tried all three modes (exact, approx, and auto) and none of them are allowing me more decimal...

ok i bought my calculator for exact 5 days i have learned as much as i can now i have 3 weeks free because end of the finals i am waiting the comming semester . i want to use it in my exams i learned (important ones) how to take integrals , derivation , laplace , and still learning diff...

Ok, so I have a TI-89 Titanium Edition calculator. I want to know how to setup fractions on it. Like I want to be able to do it like on a regular scientific calculator where you somethign like 2 Ab/c3 and then that would give you 2 over 3 (2/3). Is it possible to set up a fraction in the...

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...

Hello! I would really appreciate any help with this. I have a lot of graphs etc that I made in excel, and stored as bitmap/jpeg files. I would like to upload these to the calc. It does not matter where, as long as I can retrieve them with some ease. So far I have learned that I can...

how would i calculate Fourier transform of functions such as 1/(1+t^2)? because if you try to integrate the product of the above function and e^(-jxt), you would realize it's nonintegrable or something at least my ti-89 does not calculate it for me. any other way?

I just got a TI-89 off ebay for the upcoming school year to help with calc and engineering studies. My old calculator was a ti-83plus and I knew that baby inside and out. I am trying to become familiar with the 89 before school starts, but there is one major thing I can't really figure out...

1. After I launch the "Home" program and enter d(x^2,x) The calculator spits out -52.4916, a numerical solution. What I want is the algebraic derivative 2x - how do I get to the algebraic derivative? 2. When I enter sin(60), it gives me -0.304811 as an output. Why does the Ti-89 give a...

is that a good deal? Not even opened, its on clearence at a local walmart near my house.

How can I integrate an expression with constant variables like needed when solving m\frac{dv}{dt} = mg but assuming I don't know its value?

With the Exact/Approx set to "AUTO" in the mode menu, how can I get approximate answers without going and switching it to approx then recalculating?

can anyone suggest ways on how to calculate the moment of inertia using: 1) graphics calculator [TI-89 plus] and/or 2) any computer-based packages for a cylinder, cone and sphere? I believe that a program can be created in my graphics but i don't seem know how to create such a complicated...

A whole row of pixels just mysteriously disappeared while I was using my calculator. Age maybe? It's about three years old.