# Description

Graph 89 - Emulator for the TI-89 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.

Google Play reviews now use Google+ so it's easier to see opinions from people you care about. New reviews will be publicly linked to your Google+ profile. Your name on previous reviews now appears as "A Google User".

Write a review

My review

Review from

# Reviews

Helpfulness

Newest

Rating

Helpfulness

All Versions

All Versions

Latest Version

4.2

3,065 total

5 2,064

4 402

3 149

2 84

1 366

Tony Castro

Simple & it works FYI, you don't need to have a Ti calculator to get a operating system rom. Just go to the Ti website, navigate to the downloads section of the calculator you want and download the latest version of the operating system. Put that file somewhere on your device and add the rom. That's it.

Kenneth Monnin

Excellent All Around Got this going in no time at all thanks to TI having a free download of their 89 rom. Played with it for a while and it runs beautifully! Only problem I've seen is a lot of flashing on the screen playing assembly games, (my primary use for my ti-89 in calculus class was games... (: ) Any idea what causes that? I'd love to play calcrogue again... but it's giving me a headache, lol!

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!

Nigel Bates

Incredibly Simple I have a TI-89 Titanium which i use all of the time, but generally when i need it in any actual applications, i never have it in my bag and am forced to resort to my phone calculator. Standard Calculators just never cut it for me. Yet with this app, while i still love physically owning a TI-89, guarantee's i'll never be without it even if the actual device isn't with me. Excellent App! This is truly using the capabilities of a smart phone!

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).

User reviews

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 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 Perfectly, and Open Source To Boot! The TI-89 interface is nothing like the interface on the TI-83 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 TI-89 Titanium, including the stats and list editor. A minor complaint, and one that does not merit a reduction in rating, is that the TI-89 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.

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?

Great. Really. I love my TI89. I've still got my school TI89. It's resting in a drawer. Without brain, though, so to speak, as it's lending its ROM to my S5. As a student I thought the TI89 is a device to carry with me always, because you never know what situations you might get yourself into some sunny day... possibly an instable tesseract that affords complex calculations to escape before it collapses ;) Now, with this app I've finally got it in my pocket really ALWAYS, wherever I go. That's great. Really. :)

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.

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!

Review deleted

# What's New

v1.1.3c

Sync with the paid version.

Open the source code to: https://bitbucket.org/dhashoandroid/graph89-free

# 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

Rr Bardhok Biba b28 pallati hodaj, tirana albania

# Similar

## Wabbitemu

Wabbitemu creates a Texas Instruments graphing calculator right on your Android device. Wabbitemu supports the TI-73, TI-81, TI-82, TI-83, TI-83 Plus, TI-83 Plus Silver Edition, TI-84 Plus, TI-84 Plus Silver Edition, TI-85, and TI-86. Fast and convenient, Wabbitemu allows you to always have your trusty calculator with you. Because Wabbitemu is an emulator, the calculator it creates will act exactly like the real thing.

Wabbitemu, like all emulators, requires a ROM image. Wabbitemu includes an easy to use setup wizard that will help you create a ROM image for your TI.

Frequently Asked Questions:

1. How do I bring up the menu?

You can bring up the menu by swiping from the left edge of the screen, or pressing the menu key (if your device has one).

2. How do I disable vibration when I tap on a button?

Open the menu and click on settings. Under the 'Skin' category unselect 'Vibrate on keypress'

3. How do I load apps like PlySmlt2 or Inequalz?

To load any file to your calculator you need to first download it to your SD card or internal storage on your device. You can find the official TI applications for the 84 Plus (non color) available here: http://education.ti.com/en/us/software/search/ti-84-plus-family-ti-83-plus-family#view=math-apps. Once you have downloaded the app to your device open Wabbitemu. Swipe from the left edeg of the screen to bring up the menu, and select 'Load file'. Find the file you just downloaded in the list and select it. The file will be sent to your calculator. Apps for the 83+ and 84+ calcs will end in *.8xk. Apps for the 84+CSE will end in *.8ck or *.8xk.

4. I'm missing fraction options when I press Alpha+F1! How do I get these fraction options?

Fraction options (and the rest of the Alpha+FN menus) are only available on OS 2.55 MP. Wabbitemu allows you to download both 2.43 and 2.55 MP. You can check your OS version by hitting '2nd' then '+'. Then press enter to go to the about screen. If it not 2.55 MP or 2.53 MP you will need to upgrade.

To upgrade you will need to recreate your ROM by going through the setup wizard again. The setup wizard is runnable if you bring up the menu by swiping from the left edge of the screen. Then select 'Re-run setup wizard'. As you go through the setup make sure you have selected OS 2.55 MP on the OS selection screen.

More documentation can be found on the official website, http://wabbit.codeplex.com

## Graphing Calculator by Mathlab

If you're looking for a graphing calculator app that works smoothly and seamlessly, you've found it! Graphing Calculator by Mathlab is a scientific graphing calculator integrated with algebra and is an indispensable mathematical tool for students in elementary school to those in college or graduate school, or just anyone who needs more than what a basic calculator offers. It is designed to replace bulky and costly handheld graphing calculators and works on virtually any Android phone or tablet.

Furthermore, Graphing Calculator by Mathlab displays calculations as it performs them on the high-quality display of the Android device, making it easier for the user to understand the calculations and see them clearly. This app has two great strengths. First, it acts as a fine scientific calculator, but, more than that, it displays the intermediate steps of the calculations as you type. It allows the students to both watch and learn how the calculations are made and how to find the final answer. Second, the graphing ability is absolutely stunning! Not only does the calculator beautifully display the graphs, but it automatically generates the x- and y- values and displays them as well.

Free version requires internet connection and contains ads! Upgrade to PRO!

Help site with instructions and examples: http://help.mathlab.us

If you have a question, send email to calc@mathlab.us

SCIENTIFIC CALCULATOR

* arithmetic expressions +,-,*,/,÷

* square root, cube and higher roots (hold ‘√’ key)

* exponent, logarithms (ln, log)

* trigonometric functions sin π/2, cos 30°, ...

* hyperbolic functions sinh, cosh, tanh, ... (hold "e" key to switch)

* inverse functions (hold direct function key)

* complex numbers, all functions support complex arguments

* derivatives sin x' = cos x, ... (hold x^n key)

* scientific notation (enable in menu)

* percent mode

* save/load history

GRAPHING CALCULATOR

* multiple functions graphing

* implicit functions up to 2nd degree (ellipse 2x^2+3y^2=1, etc.)

* polar graphs (r=cos2θ)

* parametric functions, enter each on new line (x=cos t, y=sin t)

* function roots and critical points on a graph, tap legend to turn on and off (top left corner), use menu to display as a list

* graph intersections (x^2=x+1)

* tracing function values and slopes

* scrollable and resizable graphs

* pinch to zoom

* fullscreen graphs in landscape orientation

* function tables

* save graphs as images

* save tables as csv

FRACTION CALCULATOR

* simple and complex fractions 1/2 + 1/3 = 5/6

* mixed numbers, use space to enter values 3 1/2

ALGEBRA CALCULATOR

* linear equations x+1=2 -> x=1

* quadratic equations x^2-1=0 -> x=-1,1

* approximate roots of higher polynomials

* systems of linear equations, write one equation per line, x1+x2=1, x1-x2=2

* polynomial long division

* polynomial expansion, factoring

MATRIX CALCULATOR

* matrix and vector operations

* dot product (hold *), cross product

* determinant, inverse, norm, transpose, trace

LIBRARY

* user defined constants and functions (PRO)

* save/load expressions

## Andie Graph

Get a TI-82, TI-83, TI-83+, TI-85, AND TI-86 emulator for your phone!

Andie Graph is an Android port of the AlmostTI emulator by Marat Fayzullin - http://fms.komkon.org/

*** ROM not included. Why? http://dgmltn.com/roms ***

The TI-8X series of calculators work great as standalone calculators, showing 8 lines of history, using standard mathematical notation. Each model was designed with more specific purposes in mind:

The TI-82 is designed for algebra and trigonometry. Graph and compare functions, perform variable substitution, and solve single variable equations.

The TI-83 is designed for statistics and trigonometry. Graph and compare functions, and perform data plotting and analysis.

The TI-85 is great for engineering and computer science. Graph and compare functions, perform bit manipulation and convert between numeric bases.

The TI-86 is great for engineering and calculus. Graph and compare functions, perform bit manipulation and convert between numeric bases. Solve differential equations, plot vector fields.

All models allow you to write programs in TI-BASIC and perform basic scientific calculator operations.

Follow @dgmltn for updates!

## Desmos Graphing Calculator

At Desmos, we imagine a world of universal math literacy and envision a world where math is accessible and enjoyable for all students. We believe the key is learning by doing.

To achieve this vision, we’ve started by building the next generation of the graphing calculator. Using our powerful and blazingly-fast math engine, the calculator can instantly plot any equation, from lines and parabolas up through derivatives and Fourier series. Sliders make it a breeze to demonstrate function transformations. It's intuitive, beautiful math. And best of all: it's completely free.

Features:

Graphing: Plot polar, cartesian, or parametric graphs. There’s no limit to how many expressions you can graph at one time - and you don’t even need to enter expressions in y= form!

Sliders: Adjust values interactively to build intuition, or animate any parameter to visualize its effect on the graph

Tables: Input and plot data, or create an input-output table for any function

Statistics: Find best-fit lines, parabolas, and more.

Zooming: Scale the axes independently or at the same time with the pinch of two fingers, or edit the window size manually to get the perfect window.

Points of Interest: Touch a curve to show maximums, minimums, and points of intersection. Tap the gray points of interest to see their coordinates. Hold and drag along a curve to see the coordinates change under your finger.

Scientific Calculator: Just type in any equation you want to solve and Desmos will show you the answer. It can handle square roots, logs, absolute value, and more.

Inequalities: Plot cartesian and polar inequalities.

Offline: No internet access required.

Visit www.desmos.com to learn more and to see the free online version of our calculator.

Note: the app doesn’t yet support saving & sharing of graphs. If you need to save and share, we recommend visiting www.desmos.com on your device.

## Free Graphing Calculator

Free Graphing Calculator

Does far more than most of the paid calculators out there . . . let alone the free ones.

Features:

1) Scientific Calculator. Simple to grasp and easy to use, but powerful features are available when you need them. Available functions include the following:

• the usual arithmetic functions and exponentiation.

• square root, cube root, nth root, natural log, log base 10, log of arbitrary base, absolute value, factorial, permutations (nPr), combinations (nCr), modulus, random integer, bell curve, cumulative normal distribution, decimal to fraction.

2) Graphing. Capabilities:

• Graph up to four equations at once.

• Graphs are labeled.

• You can drag the graph or pinch to zoom in or out.

• Calculator can find roots and intersections.

• Graph in polar coordinates.

• Graph parametric equations

3) A unit converter. With a tap, you can enter the result of your conversion into the calculator. Currently converts different units of the following: acceleration, angle, area, density, distance, energy, force, mass, power, pressure, speed, temperature, time, and volume. Great for doing physics homework!

4) Constants for scientific calculations -- speed of light, strength of gravity at Earth's surface, etc. etc. etc. Tapping on a constant will insert it into your calculation -- i.e, you don't have to key in the value. Again, great for doing physics homework!

5) It can make a table of the values of any function you care to enter. You can choose the starting x value of the table, as well as how much x increases for each successive row.

6) Forgot the quadratic formula? Or the double-angle formulas for sine and cosine? The math/science reference hits the high points of various subjects. Currently includes algebra, differential and integral calculus, geometry, trigonometry, vectors, vector calculus, and classical mechanics.

I'd love to hear your comments or suggestions. You can write me at the email address in the app. Thanks!

## Graph 89 - (with TI84 support)

Graph 89 is an emulator for the TI-83, TI-83 Plus, TI-83 Plus Second Edition, TI-84 Plus, TI-84 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: TI-83, TI-83 Plus, TI-83 Plus SE, TI-84 Plus and TI-84 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, (var-link/F4/F3/send)

Performance improvements

Customizable LCD colors

## Mathematics

daboApps

1

NOTE: use the SWIPE-TO-DELETE gesture to delete functions, equations, variables

- NEW: statistics (gaussian test, t test, binominal and normal distribution, standard deviation, average, sum, median)

- formula calculation with variables, sums, products and sequences

- solve equations (linear, quadratic, cubic, transpose)

- plot functions, derivate, integrate, calculate roots and extremas (polynomial, rational, exponential, etc)

- calculate tangent, asymptote, interception

- reconstruction: calculate f(x) by given roots, points or extremas

- f(x,y) plot in 3D

- factoring (Bézout's identity, Euler's totient function, least common multiple, greatest common divisor)

- modulo calculation with big integer and fractions

- differential and integral calculus

- curve sketching, limes, minima, maxima

- linear algebra, vectors, matrices

- unit conversion

- number systems, binary/oct/decimal/hex calculator

- complex number calculation

Supported languages:

English, German, Francais, Espanol, Italian, Portuguese

Mathematics is a powerful calculation software for your android smartphone.

FEATURES

Calculate any formula you want and show them in a 2d or 3d plot. The natural display shows fractions, roots and exponents as you would expect it from mathematics.

In a few seconds you derivate or integrate your desired function, calculate the zero points of your function und show them in the function plot. See all maxima, minima or inflection points in one view.

The easy way of use allows you to solve linear equations in just a moment. Or transform your mathematical, physical or chemical equation to any unknown variable.

You often needs to calculate with binary, octal or hexadecimal number systems? No problem! You can mix them together in one calculation even by using decimal digits. But that's not enough! You can also calculate with any other number system with base 2 to 18.

From time to time you may need to convert units to another one, like Celsius to Fahrenheit, miles to kilometre, inches to foot and so on.

You will also be able to calculate with vectors, matrices and determinants.

All this features are combined in this app and will make your mathematical life a lot easier.

## MathsApp Scientific Calculator

4073Labs

1

MathsApp Scientific Calculator is aiming to be the best scientific calculator app for Android.

Looking for a graphing calculator, matrix support, or simply want to support the cause of creating the greatest scientific calculator app on Android? Get MathsApp Graphing Calculator: https://play.google.com/store/apps/details?id=com.mathsapp.graphing

MathsApp Scientific Calculator includes:

-Landscape mode

-Easily adjust previous calculations or insert previous results

-Binary, octal and hexadecimal number support

-Scientific, engineering and regular number formatting

-Physical constants

-User-friendly interface

-No advertisements

-Advanced calculations

-Arithmetic

-Exponentiation

-Trigonometric functions

-Advanced statistical distribution functions

-List support

-Complex number support

-Percent support

## Graphing Calculator MathlabPRO

If you're looking for a graphing calculator app that works smoothly and seamlessly, you've found it! Graphing Calculator by Mathlab is a scientific graphing calculator integrated with algebra and is an indispensable mathematical tool for students in elementary school to those in college or graduate school, or just anyone who needs more than what a basic calculator offers. It is designed to replace bulky and costly handheld graphing calculators and works on virtually any Android phone or tablet.

Furthermore, Graphing Calculator by Mathlab displays calculations as it performs them on the high-quality display of the Android device, making it easier for the user to understand the calculations and see them clearly. This app has two great strengths. First, it acts as a fine scientific calculator, but, more than that, it displays the intermediate steps of the calculations as you type. It allows the students to both watch and learn how the calculations are made and how to find the final answer. Second, the graphing ability is absolutely stunning! Not only does the calculator beautifully display the graphs, but it automatically generates the x- and y- values and displays them as well.

Help site with instructions and examples: http://help.mathlab.us

If you have a question, send email to calc@mathlab.us

PRO FEATURES

* 3D graphs

* Save constants, functions and expressions in the library

* Internet is not required

* No advertisements

SCIENTIFIC CALCULATOR

* Arithmetic expressions +,-,*,/,÷

* Square root, cube and higher roots (hold ‘√’ key)

* Exponent, logarithms (ln, log)

* Trigonometric functions sin π/2, cos 30°, ...

* Hyperbolic functions sinh, cosh, tanh, ... (hold "e" key to switch)

* Inverse functions (hold direct function key)

* Complex numbers, all functions support complex arguments

* Derivatives sin x' = cos x, ... (hold x^n key)

* Scientific notation (enable in menu)

* Percent mode

* Save/load history

GRAPHING CALCULATOR

* Multiple functions graphing

* Implicit functions up to 2nd degree (ellipse 2x^2+3y^2=1, etc.)

* Plar graphs (r=cos2θ)

* Parametric functions, enter each on new line (x=cos t, y=sin t)

* Корени на графици и локални екстреми на функција прикажани на график. Селектирајте го квадратчето од левата страна на функцијата, за да ги видите нејзините координати на графикот. Кликнете на копчето-график, на горното мени, за да ги гледате координатите како листа.

* Graph intersections (x^2=x+1)

* Tracing function values and slopes

* Dcrollable and resizable graphs

* Pinch to zoom

* Fullscreen graphs in landscape orientation

* Function tables

* Dave graphs as images

* Save tables as csv

FRACTION CALCULATOR

* Simple and complex fractions 1/2 + 1/3 = 5/6

* Mixed numbers, use space to enter values 3 1/2

ALGEBRA CALCULATOR

* Linear equations x+1=2 -> x=1

* Quadratic equations x^2-1=0 -> x=-1,1

* Approximate roots of higher polynomials

* Systems of linear equations, write one equation per line, x1+x2=1, x1-x2=2

* Polynomial long division

* Polynomial expansion, factoring

MATRIX CALCULATOR

* Matrix and vector operations

* Dot product (hold *), cross product

* Determinant, inverse, norm, transpose, trace

LIBRARY

* User defined constants and functions

* Save/load expressions

## Wabbitemu (no ads)

Wabbitemu creates a Texas Instruments graphing calculator right on your Android device. Wabbitemu supports the TI-73, TI-81, TI-82, TI-83, TI-83 Plus, TI-83 Plus Silver Edition, TI-84 Plus, TI-84 Plus Silver Edition, TI-85, and TI-86. Fast and convenient, Wabbitemu allows you to always have your trusty calculator with you. Because Wabbitemu is an emulator, the calculator it creates will act exactly like the real thing.

Wabbitemu, like all emulators, requires a ROM image. Wabbitemu includes an easy to use setup wizard that will help you create a ROM image for your TI.

More documentation can be found on the official website, http://wabbit.codeplex.com

## ACT/SAT Math Booster (lite)

**LITE VERSION** First 4 programs free with ad support. Clicking on the rest will link you to the full version in the app market.

Link to FULL VERSION: https://market.android.com/details?id=com.actfull

Boost your math score on the ACT test and SAT test by programming your TI 83/84 with these totally allowed (see ACT/SAT rules and regs on their website) sneaky, super easy-to-program calculator programs. We give you step-by-step directions and show you how to use them on real ACT and SAT test questions.

## Integral calculator

Full version. This app is 100%Free!

Users college level with some knowledge in integral and/or Fourier series will appreciate in depth all features of this app.

Integrals calculator is a powerful app to calculate indefinite and definite integrals and make a complete functions analysis of real variable.

Integrals Calculator makes operations with functions such as Derivate, Integral and Fourier Series coefficients numerical calculations.

Also, Integrals calculator solve analytically differential ordinary equations up to order two (or output false when solution were not found), calculates Taylor polynomial around a point.

This app help in one variable real calculus, from Integrals, to Taylor polynomial. Also it calculates derivate, plot functions, Taylor Polynomial, derivate and so on ...

In resume, with Functions Integrator is able to do the following operations:

- Plot f(x) functions euclidean R2 space.

- Calculate indefinite integral or primitive or says if f is not integrable.

- Analytic Solver ODE with up to order 2.

- Numerical calculation of Fourier Series An, Bn Coefficients.

- Definite integral calculations.

- Locale extreme calculations.

- Limit of a function in a point.

- Taylor Polynomial Calculations.

- Semi-infinite and infinite definite integral calculations.

- Calculate derivate.

Integrals calculator requires internet connection!!

Reject imitations! This is the only integral calculator certified from www.mathstools.com.

## AlmostTI - TI Calc Emulator

AlmostTI turns your Android device into a Texas Instruments graphing calculator. It fully emulates TI-84+, TI-84+ Silver Edition, TI-83+, TI-83+ Silver Edition, TI-73, TI-83, TI-85, TI-86, TI-82, and TI-81 calculators made by Texas Instruments. And yes, if you have got a tablet, it will become a really BIG TI calculator. AlmostTI also lets you save your calculations at any point and then select from several previously saved tasks.

To run AlmostTI, you will need at least one calculator system ROM. AlmostTI does not include any calculator ROMs on its own, as they are intellectual property of Texas Instruments. You should place your own ROM, preferably dumped from the calculator you own, onto your internal storage. AlmostTI recognizes following ROM files (in upper or lower case):

TI85.ROM, TI86.ROM, TI81.ROM, TI82.ROM, TI73.ROM, TI83.ROM, TI83P.ROM, TI83SE.ROM, TI84P.ROM, TI84SE.ROM

TI-85.ROM, TI-86.ROM, TI-81.ROM, TI-82.ROM, TI-73.ROM, TI-83.ROM, TI-83P.ROM, TI-83SE.ROM, TI-84P.ROM, TI-84SE.ROM

For information on dumping a ROM from your own calculator, see here:

http://www.ticalc.org/programming/emulators/

For general information about AlmostTI, see its homepage:

http://fms.komkon.org/ATI85/

For Android-specific help, please see this web page:

http://fms.komkon.org/EmuAndroid/

And to discuss your problems with the author and other users, use this discussion group:

http://groups.google.com/group/emul8

## 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

Decide the future of AutoMath by Beta Testing: https://plus.google.com/communities/112210106892044446358

# More from developer

## Graph 89 - (with TI84 support)

Graph 89 is an emulator for the TI-83, TI-83 Plus, TI-83 Plus Second Edition, TI-84 Plus, TI-84 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: TI-83, TI-83 Plus, TI-83 Plus SE, TI-84 Plus and TI-84 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, (var-link/F4/F3/send)

Performance improvements

Customizable LCD colors