Description
Graph 89  Emulator for the TI89 graphing calculator.
The ROM image is not included. You need to extract this from you own calculator. Make sure you have the ROM ready before downloading this emulator.
The ROM image is not included. You need to extract this from you own calculator. Make sure you have the ROM ready before downloading this emulator.
You must install this app before submitting a review.
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All Versions
All Versions
Latest Version
4.2
2,867 total
5 1,942
4 374
3 140
2 79
1 332
Evan Tabor
Bare minimum emulator This app has so much potential, but I feel like it falls flat. Suggestions: we all know what it looks like, can we have an option for a button grid, rather than buttons with dead space around them? Also, make the text on the buttons (in grid form) change with the pressed function keys. Make the screen area slightly smaller for more room for buttons. That would make it perfect in my opinion.
A Google User
Wow!! I can't believe I got this to work! For those who rate one star: go back to using a landline! You have no business with such an advanced device! **But with latest update the buttons aren't as responsive as they used to be but I do like the improvements especially since I upgraded to an HTC One! *2014 update: Now the keys are very responsive, I don't know how since there was no update but I'm love this app! My favorite one!
Derek Mitchler
Fantastic emulator This is a wonderful tool. The application is extremely easy to use, even though the calculator it is emulating is a beast to wield. TI has the latest updates for the ROMs on their website, so you can quickly find and download the latest version. Easiest emulator I've ever used by far.
Mikko Rantalainen
Very good implementation If only Texas Instruments did provide a way to purchase a copy of the ROM legally, this might be even better than the real hardware. Obviously one gets better haptic feedback with real buttons but otherwise emulated hardware is better (better screen viewing angles, possibly better performance than with real hardware).
John Thomson
Fantastic port Love the new look on latest update with larger keys, etc. Works just like my physical calculator, very stable. Thanks so much for a wonderful tool!
Rick Stoll
Very Good I used a 89 when in my calc class long ago. I do math as a hobby now, but didnt want to buy another calculator for the purposes of having some fun with math. So far i see the 89 run flawless, however i see some quirks with the 89 titanium rom. I tried the titanium first, but removed it and installed the 89 rom instead. Still i think its a great emulator. You can get the roms from ti website
User reviews
Bare minimum emulator This app has so much potential, but I feel like it falls flat. Suggestions: we all know what it looks like, can we have an option for a button grid, rather than buttons with dead space around them? Also, make the text on the buttons (in grid form) change with the pressed function keys. Make the screen area slightly smaller for more room for buttons. That would make it perfect in my opinion.
Wow!! I can't believe I got this to work! For those who rate one star: go back to using a landline! You have no business with such an advanced device! **But with latest update the buttons aren't as responsive as they used to be but I do like the improvements especially since I upgraded to an HTC One! *2014 update: Now the keys are very responsive, I don't know how since there was no update but I'm love this app! My favorite one!
Fantastic emulator This is a wonderful tool. The application is extremely easy to use, even though the calculator it is emulating is a beast to wield. TI has the latest updates for the ROMs on their website, so you can quickly find and download the latest version. Easiest emulator I've ever used by far.
Very good implementation If only Texas Instruments did provide a way to purchase a copy of the ROM legally, this might be even better than the real hardware. Obviously one gets better haptic feedback with real buttons but otherwise emulated hardware is better (better screen viewing angles, possibly better performance than with real hardware).
Very Good I used a 89 when in my calc class long ago. I do math as a hobby now, but didnt want to buy another calculator for the purposes of having some fun with math. So far i see the 89 run flawless, however i see some quirks with the 89 titanium rom. I tried the titanium first, but removed it and installed the 89 rom instead. Still i think its a great emulator. You can get the roms from ti website
Nostalgia Makes me want to dig my 89 Titanium out of the closet and play with it again. The 89/92 series of graphic calculators were very powerful handheld machines in their time, and now we live in a world where cellphones can run them. Good work but has one problem so far, when sending a file, and it's already on the calc, then the app crashes.
Works fine but having a bug This calculator is working awesome on my samsung galaxy win.But I ran into problems when I hit 2nd+on key.Instead of quitting the emulator application completely,the virtual screen just goes off and the virtual buttons become unresponsive....then I have to quit it using the home button...how to fix this?
Works Perfectly, and Open Source To Boot! The TI89 interface is nothing like the interface on the TI83 and 84, and a poor reason to rate the app with one star. The CAS and 3D graphing capability alone make the calculator more advanced than the 83 and 84. Whether the 89 is better than the 83 or 84 is a matter of debate. As to the app itself, its best feature is the ability to install apps to the "flash memory" of the calculator, allowing the emulator to use the apps that come standard on the TI89 Titanium, including the stats and list editor. A minor complaint, and one that does not merit a reduction in rating, is that the TI89 Titanium keypad is too bright, thanks to TI using a "Titanium" finish. I've fixed this in my copy of the app, built from source.
Oh My This app makes me want to go back in time. I would go to my 5th grade teacher and ask "why can't I use a calculator?" and when the robotic response came "You won't always have a calculator with you!" I would punch her in the face. I mean seriously, I saw this coming 32 years ago when I was 10. I LOVE this app because I loved my TI89! And it is ALWAYS with me...take that Ms. Chatterton!
A Most Excellent App I just started my dabbling, and to say it succinctly, this app/emulator is a mirror of TI's line of graphing calcs, and a very stable one at that. The one thing to add I can think of is the ability to install apps(and from what I saw it's already suggested). But until then, I'm going to play with the software and check out loading the apps into a ROM via the emulator/TI's dev tools on the PC, when I've got time. Two thumbs, an outstanding app! You'll never have to use your abacus again!
Excelente. The best app for engineer student Perfecta en SG Note con ICS
Too much work! I have a TI 84 PLUS. I got the app so I wouldn't have to pull the calculator out all the time and when I forgot to bring it with me to school I could still get my work done....it's big and clunky and my phone isn't! But they want you to download the software which is stupid. I got the app for convenience now you want me to do extra steps! Not worth the time! I'll download another app that's more convenient!
Best app ever You need a tablet to be able to see the buttons but if you've got one, this totally works as a graphing calculator. Helps me so much! (later edit) loses one star for the file transfer feature having problems. Won't let you upload more than one file to the calculator's memory at a time without locking up. Irrelevant bug if you dont use that feature as most people dont.
I would love if... I actually own a TI  89 Titanium calculator but it is starting to break after 10 years of usage so I was hoping this could substitute it but I cannot install any new apps as it goes into the browsing section for me to point to the file it immediately force closes I have sent a bug report will definitely change to 5 stars when fixed. It also force closes when I enter the configuration menu
What's New
v1.1.3c
Sync with the paid version.
Open the source code to: https://bitbucket.org/dhashoandroid/graph89free
Additional information
Updated
October 17, 2013
Size
6.5M
Installs
100,000  500,000
Current Version
1.1.3c
Requires Android
2.2 and up
Content Rating
Everyone
Permissions
Report
Flag as inappropriate Offered By
Dritan Hashorva
Developer
Email dhashoandroid@gmail.com
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I do have a refund policy:
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And More!
**Warning: does not work on phones with Android 1.5 or lower
AutoMath Photo Calculator
S2dio
1
AutoMath allows you to solve math questions simply by taking a photo of your math equations
AutoMath is a great way to check your work, study or even to teach yourself math.
Here are some of AutoMath's Photo Calculator Features:
 Quick and Accurate Results
 Step by step tutorials
 No internet required
 Can solve simple to advanced math questions
 250+ Mathematical Functions
 Handwritten questions are coming soon and are not currently supported
AutoMath Photo Calculator Currently supports:
Addition, Subtraction, Multiplication, Fractions, Division, Inequalities, Powers, Polynomials, Linear Equations,
Square Roots, Trigonometry, Algebra, Simplification, and Basic Algorithms
AutoMath Smart Text Calculator supports: (photo calculator not yet available for most of the below)
Any other math problems such as calculus, equation systems, complex math, graphing, table of values, and more
Coming Soon:
Calculus, Equation Systems and the ability to scan handwritten questions
Please Note:
Your very first photo will copy data files which will take longer then normal. After the initial photo it will be a lot quicker.
Example Video : https://www.youtube.com/watch?v=QYladg1nCYM
Graphing Example : https://www.youtube.com/watch?v=EpIA7JhDZ_Q
Quick Mode Example : https://www.youtube.com/watch?v=GtGmWHB3FZQ
Graph It!
FEMA
1
GraphIt is a utility that is used to display on a Cartesian plane any mathematical function, which can be f(x)=2, f(x)=2*x, f(x)=sin(x) ecc... The management function is entrusted to you: you can add more or modify existing ones.
The integration of functions is facilitated by selfcompletion of statements, also expressions of the interpreter is very flexible and allows the inclusion of any function: even the most complex are recognized and interpreted correctly.
The main functions recognized are: abs(x), acos(x), acosh(x), asin(x), asinh(x), atan(x), avg(x1,x2,...,xN), ceil(x), combin(x,y), cos(x), cosh(x), e(), exp(x), fact(x), floor(x), lg(x), ln(x), log(x,y), max(x1,x2,...,mN), min(x1,x2,...,xN), mod(x,y), pi(), pow(x,y), rand(), sign(x), sin(x), sinh(x), sqrt(x), sum(x1,x2,...,xN), tan(x), tanh(x), toDeg(x), toRad(x).
The graph allows an accurate view of the trend of function at any point in the plane. You can zoom and pan through the classical gestures.
There is also a tool which can calculate the value of the functions included, given the value of x (via a number or expression).
Simple Graph Drawer Full
The program allows draw functions graphs in specified area. The area is defined by the X min, X max, Y min, Y max values and division values for X and for Y. Functions are defined by the expression string and color. You should click on function string in the table to edit it. Only "x" symbol should be used as a varible. After area and functions data input click "Redraw" button to draw it. On phones graph is drawn on a full screen. Via the menu You can maximize graph on the full screen, get help about functions, about program, save the graph as a picture or sent email with it (with help of mail client app,such as gmail). The advertisement will be shown after the 5 redraws, and may be closed via the menu (or shown). And please, sometimes click advertisement  it may help for developer))).
Graphing Calculator Adfree
celaps
1
This is the adfree version of the best graphing and scientific calculator here.
As a scientific calculator cFunction supports functions like pow, square roots, trigonometric functions and the logarithm. As mathematical constants, the Euler number e and Pi (π) are supported
On top of that with this graphing calculator you can plot (multiple) functions, calculate derivatives, roots, extrema (maxima or minima of a function), inflection points, value table, certain values, definite integrals, intersections of functions and it can convert between degrees and radian.
The calculator supports the trigonometric functions sine, cosine, tangent,
their hyperbolic representations hyperbolic sine, hyperbolic cosine and hyperbolic tangent
and the inverse trigonometric functions sin^−1(x), cos^1(x), tan^1(x), coth, cot, acot.
Using the calculator you can analyze functions fast and simple so it's perfect for your math classes.
Supports english, german, french and spanish.
Relevant Tags:
Math, Calculator, Scientific Calculator, Graphing Calculator, calculate Derivative, calculate Integral, calculate roots, homework, math classes, math tool, plotting, math help, functions, plot functions, definite integrals, analyze functions, function plotter, extrema (maxima or minima of a function), inflection points, value table, certain values, definite integrals, intersections of functions, sine, cosine, tangent, pow, square roots, trigonometric functions and the logarithm
More from developer
Graph 89  (with TI84 support)
Graph 89 is an emulator for the TI83, TI83 Plus, TI83 Plus Second Edition, TI84 Plus, TI84 Plus Second Edition, TI89, TI89 Titanium, TI92 Plus and Voyage 200 calculators.
*Please remember to read the ROM section below before downloading this application!
It will turn your phone or tablet into an exact replica of your calculator. The emulator will provide the same functionality and generate the same results as your real calculator. Being ported to Android means that it will always fit in your pocket, have a backlight, be rechargeable and also run faster.
You would be able to install applications by copying the App file to the internal memory of your phone, pressing the 'Back' button and selecting 'Install Application/Send File'.
Graph89 would be great tool for math, science and engineering courses in high school, college and beyond. Some of these calculators feature Computer Algebra System (CAS) having the capability to simplify and symbolically solve mathematical expressions.
Graph89 combines two powerful emulation engines which make it the only app in the Android Play Store to support the full range of TI graphing calculators.
1) TiEmu  http://lpg.ticalc.org/prj_tiemu providing support for the Motorola 68K family: TI89, TI89 Titanium, TI92 Plus, Voyage 200
2) TilEm  http://lpg.ticalc.org/prj_tilem providing support for the Z80 family: TI 83, TI 83+, TI 83+ SE, TI 84+, TI 84+ SE
!!! IMPORTANT !!!
ROM:
Emulators are computer software which simulate a specific hardware. In order for the emulator to do anything useful it needs some software to run. The software that runs in your calculator (ROM) is copyrighted by TI, and as such, it can not be distributed by Graph89 or any other emulator for that fact.
This means that you will have to provide the ROM file yourself by extracting it from your own calculator. Transfer it to your phone, and then tell Graph89 where to find it. To extract the ROM you can follow the instructions from http://www.ticalc.org/programming/emulators/romdump.html and by using TiLPII from http://sourceforge.net/projects/tilp/files Google and youtube are also great sources of tutorials and help.
Wabbitemu http://wabbit.codeplex.com/ is also a great tool for extracting the ROM from your TI83/TI84
Supported ROM files:
TI89, TI89 Titanium, TI92 Plus and Voyage 200:
*.rom, *.89u, *.v2u, *.9xu, *.tib
TI83 Plus, TI83 Plus SE, TI84 Plus and TI84 Plus SE:
*.rom, *.8Xu
TI83:
*.rom
Firmware updates (*.89u, 9xu, *.v2u, *.8Xu) which are normally used to restore the operating system of your calculator can also be used as a ROM image.
Needless to say, you will be very disappointed if you purchase Graph89 without having the ROM file ready. You will just see some instructions and a blank screen.

Graph89 needs permission to look at your Android Account in order to generate a unique ID shown under F1/About. This works only for TI89/V200. Note that there is no internet connection required for this App.
TiEmu, TilEm and Graph89 have been developed independently of Texas Instruments and are not affiliated with TI.
Texas Instruments and TI are trademarks of Texas Instruments Incorporated.
Revision History:
v1.1.3b
An 8Xu (firmware update) file can now be used as a ROM for TI84+, TI84+SE, TI83+ and TI83+SE
v1.1.3
Added support for: TI83, TI83 Plus, TI83 Plus SE, TI84 Plus and TI84 Plus Second Edition using the TilEm2.00 engine.
v1.1.2b
Bug fixes on 'State Save' and 'Out of Memory' errors on some older phones.
v1.1.2
Backup Manager
Dot Matrix LCD simulation
Click Screen to Zoom
Reset RAM
v1.1.1
Landscape mode for TI89, TI89T
TI92+ skin
Bug fixes
v1.1.0
Emulates Voyage 200 and TI92 Plus
Multiple calculator instances
Multitouch
Take screenshots
Generate an ID under F1/About
Sync clock
Acoustic feedback on keypress
Automatic overclock
Grayscale support
Send group files (*.89g, *.tig)
Receive files, (varlink/F4/F3/send)
Performance improvements
Customizable LCD colors