# Description

Create equations and letter art on the move. Use your mobile phone to create equations. Easy and intuitive 2D navigation system. Useful for taking notes in lectures or to save equations that you can recall at a later time. You can create any sort of equations such as polynomials, tensor equations matrices or anything you can think of since you have total freedom on how to arrange the symbols. You can also create ASCII art using a variety of symbols.

One use for this app is to write equations on the train or to store equations to show to your colleagues at a conference. If you think of an equation and just have to write it down you should use this app. It combines the freedom of a 2D grid system with the accuracy of using characters and symbols.

Also see the equations as LaTeX or Unicode or as plain text to copy and paste.

Take screenshots of the equations you make and save it to your gallery.

Equation format mode to easily format equations including fractions, integrals and square roots.

Equation notepad is what's known as an equation editor or formula editor.

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# Reviews

Helpfulness

Newest

Rating

Helpfulness

All Versions

All Versions

Latest Version

2.5

22 total

5 5

4 1

3 3

2 5

1 8

A Google User

Does the job. I needed something on my Android to write equations and this does what I need. Pros: Good equations. Easy to use. Cons: Bit fiddly on small screens. Could do with keyboard support - just uses touchscreen buttons. Perhaps this will be in a future update?? Overall, quite a good little app for the price.

A Google User

Good first try, but it still needs work This is the first equation editor that I have seen for android. It has been a good first try but it still needs much work. I did not buy it because of performance but because I hope to see more improvements over the next few days. I saved an equation, but I'm not sure where was it saved. I have a Samsung galaxy plus 7.0 running android 3.2. It needs a settings button with a whole bunch of options including an alphabet size options.

A Google User

As the other review says, great first effort but not there yet. Showstopper for me is it doesn't recognize my slider keyboard.

User reviews

# What's New

Added menus in several languages.

Added the ability to save to external storage.

Added equation formatting options.

Added the ability to view equations as LaTeX equations.

Added the ability to save images.

Added the ability to load and save equations.

Added zoom functionality.

Added font support.

Added preview mode.

Added nicer menus.

Better Language support

# Additional information

Updated

June 6, 2013

Size

6.4M

Installs

500 - 1,000

Current Version

2.1

Requires Android

2.0.1 and up

Content Rating

Everyone

Permissions

Report

Flag as inappropriate Offered By

Marjupi Software

Developer

# Similar

## Equation Editor

Equation Editor allows you to create and share mathematical equations. You can use a simple metalanguage to write your equations and then you can send them to your friends, share them on your social networks or save them to your device with the resolution you select. You can also store your favourite equations to work with them later.

## Equation Editor

This is a plugin for LaTeX Editor!

It does not work standalone!

Do NOT install if you do not use LaTeX Editor!

It does not work standalone!

Do NOT install if you do not use LaTeX Editor!

It adds ability to easily create and edit equation in your LaTeX documents. You can even create equations without LaTeX document.

Output:

- PDF

- JPG

- PNG

- WEBP

- SVG

- LaTeX

Works only on ARM cpu architecture

## Story Planner for Writers

The outline is one of the most powerful weapons for a writer. Now you can easily outline your stories wherever you are thanks to Story Planner, the best story-mapping and organizational stories tool ever.

With Story Planner YOU WILL:

• create as many writing projects as you wish

• create characters and locations for your stories

• create the scenes for your story step by step

• arrange your scenes

• link characters and locations to the scenes

• export your writing projects to text files (.rtf and .txt) and Final Draft

• and the most awesome feature… GET YOUR STORY STATS!!!

Thanks to the STORY STATS, you WILL:

• see your whole story at a glance

• choose the right outline for your stories

• choose the best structure for your scenes

• get cohesion and balance in your novels, screenplays or tales

What are you waiting for?

Let Story Planner helps you write better stories!

Comments or suggestions? Let us know! Visit http://www.literautas.com/en/

## touchGrapherPro

To try the app first, you can download the free version here: https://play.google.com/store/apps/details?id=com.maslak.touchGrapher

touchGrapherPro is a graphing calculator unlike any other. Its highly intuitive interface lets you quickly do things that would normally take a few times as long. A very useful tool for students of Math-related subjects makes you more effective in many tedious tasks.

Plot graphs of functions, curves, add parameters to them, interpolate a set of points to a function and many more in a matter of a few taps on the screen. Optimized for both tablets and smartphones, the app runs smoothly even on devices from a few years ago. This all makes Maths and analytic geometry as pleasant as never before.

Extra features of touchGrapherPro:

- no ads

- plot curves from parametric equations or in polar coordinates

- introduce parameters to formulas and adjust them in real time

- import and export graphs to text file

- draw complex graphs in seconds from the list of examples(e.g. Lissajous curve, cissoid, and many more)

- remove single points attached to graphs

- save screenshots in selectable resolutions and share them instantly from the app

- unlimited number of graphs at once

- improved performance

- refined user interface

Besides, all the features from regular touchGrapher:

- plot graphs of functions on a plane

- numerical integration

- generate functions from a discrete set of points:

- linear regression

- exponential regression

- polynomial interpolation

- find zeros and local extrema of functions, intersection points of two functions

- save graphs to image file

- modify graphs' appearance after they have been plotted

More fancy features planned for future releases!

## LaTeX Editor

LaTeX Editor allows you to write LaTeX code and then generate (offline) output in several formats. (PDF, JPG, PNG, WEBP and SVG). It includes several basic LaTeX packages for compilation of simple documents, but when it is required it automatically downloads new ones.

This application is extendable so you can also download plugins. Currently available is Equation Editor.

This application is extendable so you can also download plugins. Currently available is Equation Editor.

Notes:

- This is just a beta version. Please report any errors.

- This application only supports ARM cpu architecture

LaTeX compiler is based on old versions of libraries LAHTeX, LAHSpectre and LAHDownloader created by LAH group http://lameandroidhero.bitbucket.org/

LAH group are not to take any warranty, liability or responsibility for their work used in this product.

## Equation Solver

Alago

1

Finally an app that can solve for all types of equations and isn't just limited to a formula!

Equation Solver is an app that can solve for one variable in any equation, it is extremely versatile and a must for anyone in school or anyone that deals with equations on a daily basis.

Please note all variables must be lowercase!

Functions supported:

+, -, *, /, ^ (exponent), sin, cos, tan, asin, acos, atan, sqrt (square root), abs (absolute value), ln, log

Instead of depending on hard coded formulas, Equation Solver finds the answer through a brute force method. This allows the app to solve for all sorts of problems in a relatively short amount of time!

Please email me at alagoapps@gmail.com if you have any questions/concerns or bugs. Please attempt to contact me before leaving a bad rating to see if I can help.

Known Issues

- None at this time

Permissions

- Internet is only needed for the advertisement, NOTHING else. This app does not rely on an internet connection to solve equations and can function offline.

(If you have an interest in a $.99 ad-free version shoot me an email at alagoapps@gmail.com)

## Quadratic Equation Solve/Graph

One of the best quadratic equation solver and graph drawer in the market. Simply enter the parameters of the quadratic equation to be solved to the screen and calculate the roots of the equation. After calculating the roots, user can press the just appeared QuadE icon so that the curve of the entered equation is drawn at the graph screen.

- Quadratic Equation Solver

- Compatible to Linear Equations

- Enhanced Graphing Feature

- Graph feature is compatible to Linear equations

- Listing of Critical values. ( X and Y axis interceptions and max or min (extreme) points of the curve

## Quadratic Equation Solver

Calvico

1

This is a quadratic equation solver that shows your work! It gives the teacher friendly answer AND shows work each step of the way. Very handy for tedious homework assignments OR just for finding the accurate answers quickly.

TIP: Hold "Clear" to clear all text inputs.

Features:

-Shows the work each step of the way.

-Dynamically updates the solution as you change the variables.

-Has a custom keypad.

-Handles imaginary numbers.

-Simplifies square roots & fractions.

-Gives approximate & exact answers.

-Each variable input is a simple calculator supporting the following operators (^, *, /, +, -).

-Supports whole numbers & decimals with each operation.

-Lightweight.

-Totally FREE!

Please contact me if you find any bugs.

tags: quadratic equation formula solver solve calculator show work shows step steps math algebra calculus calc homework help free

## Advanced Equation Solver

Advanced Equation Solver is a powerful tool to solve any kind of system of equations. It is very simple, you just write the equation in common notation and click Solve! It is not magic but almost...

★In addition of solving systems of simultaneous non-linear equations, It provides many useful specialized functions and equations for the solution of thermodynamics and heat transfer problems, making it a useful and widely used program for mechanical engineers working in these fields. AES stores thermodynamic properties, which eliminates iterative problem solving by hand through the use of code that calls properties at the specified thermodynamic properties. AES performs the iterative solving, eliminating the tedious and time consuming task of acquiring thermodynamic properties with its built-in functions.

★Furthermore, it has numerous built-in useful functions which main features are:

✓ Trigonometric

✓ Logical

✓ Logarithms

✓ Unit Converter

✓ Main mathematical and physical constants

✓ Ideal Gases properties

✓ Steam Properties

✓ Psychometric

★ It makes easy the resolution of any kind of problems, specially engineering and thermodynamics problems.

★ It could be said that is the Android version of the popular EES (Engineering Equation Solver).

▲ NOTE: First you have a limit of four equations. You can upgrade the app inside by an in-billing google option.

## Calc. Quadratic Equation

Calcule equações de segundo grau de uma forma simples e prática.

Solve quadratic equations in a simple and practical way

É só inserir nos 3 campos correspondentes os valores e você obterá:

You just have to put in the three corresponding fields the values and you will get:

Solve quadratic equations in a simple and practical way

É só inserir nos 3 campos correspondentes os valores e você obterá:

You just have to put in the three corresponding fields the values and you will get:

* Delta (if the equation contains)

* Vertices X and Y;

* Equation built up

Simple as that!

## Scientific Calculator

---#1 Calculator app on Android---

Solving complex mathematical equations has never been so easy on Android. This app can perform operations ranging from logarithmic functions, solving linear and polynomial equation, matrices to representing equations in graphical form. This app can replace the best scientific calculators available in the market on the basis of functionality and most importantly simplicity which makes it very convenient for the user. Available in the market for Android, this app is a cure for your calculations phobia!

Features-

► Interface: It has elegant and intuitive interface. Simple to grasp and easy to use.

► Basic and advanced functions- Apart from arithmetic operators, this calculator supports many scientific functions and computes advanced expressions. Powerful features are available when you need them. Available functions include the following:

→ the usual arithmetic functions and exponentiation.

→ square root, nth root, natural log, log with base 10, factorial, permutation , combinations .

→ trigonometric functions like sine, cosine, tangent, hyperbolic sine, hyperbolic cosine, hyperbolic tangent and all their inverses.

→ Use parenthesis and nested parenthesis in your calculations.

► Graph- This calculator allows 2-D equation plotting.

It allows dragging the graph and pinching to zoom in or out.

You can use all the basic and advanced functions into the equation for which the graph has to be plotted.

► Matrices- This calculator allows you to enter matrices in a very user friendly way and can perform operations on them.

You can set number of rows and columns (max 5 x 5) for any matrix you want to apply operation on.

Perform any mathematical function on the element of a matrix.

You can add, subtract and multiply any number of matrices. Special functions like inverse and determinant are also provided.

► Integration - You can perform definite integration.

Use any mathematical functions and form up an expression.

Enter the upper and the lower limit which involves entering only numerical value .

► Differentiation - You can perform differentiation or derivative of any expression at any point.

► Equation solver- This calculator allows you to solve higher degree equations as well as linear equation in multiple variables.

It allows you to set degree (max 20) i.e. you can solve the equation with up to 20 degree with maximum number of roots being 20.

It allows you to set number of variables (max 6- a,b,c,d,e,f) i.e. you can solve the equation with up to 6 variables and find out their values.

► Time Calculator - It provides the functionality of calculating the number of days between two dates. You can add/subtract days, month and year to/from a particular date. You can also perform the mentioned functionalities using hours, minutes and seconds.

► Complex Calculator - In Complex Calculator you can calculate the trigonometric, hyperbolic and logarithmic function values of complex numbers. Complex calculator also provides the functionality of calculating square root, power function and absolute values of complex numbers.

► Unit converter- This calculator includes a very simple and beautifully designed unit converter with 12 categories and many different units.

Currently converts different units of the following: length, area, weight, volume, temperature, time, speed, force, energy, power. Great for doing physics homework!

► Offline - This calculator works completely offline, no need to be connected to internet .

For Feedback/Support, contact us at support@phonato.com

## MathStep

While IO

1

MathStep is a symbolic pocket calculator with a complete CAS (Computer Algebra System) built-in. That means that it can solve math problems for you! It has an expression editor with a live preview and even gives you hints to solving a problem by yourself for some operations. It can even work without an internet connection!

NOTE: If you upgrade to Android 5.0+, reinstall the app to continue using offline calculations.

The following operations are currently supported:

- Simplification

- Deriving

- Integration

- Calculating limits

- Calculating sums

- Determining series expansions

- Solving equations

# More from developer

## Snakes and ladders 3D

Play the game of Snakes & Ladders in glorious 3D!

The aim of the game is to reach the top square by climbing the ladders and avoiding the snakes! If you land at the bottom of a ladder you climb to the top... but if you land at the top of a snake you slide all the way down its back to its tail!

You can choose from one to four players.

Tap on the die to roll it.

Watch as the pieces move themselves up the board towards the top square.

Who will reach the top square first? Just when you think one player is winning another player can overtake!

You can move the board around to look at it from different angles. This fantastic 3D board has 3D snakes and ladders on it. It makes much more sense than a flat board!

It is as if the players are climbing up a zig-zag hill.

The game is set in the Indian jungle where Snakes and Ladders was invented more than a hundred years ago!

Good luck!

## Vector Artist

Create art with shapes and curves in this art program. Create art the way professionals do. Use standard shapes or "bezier" curves. Load SVG graphics to edit and modify.

Save them to your gallery or share them on Tumblr, DropBox, email and other places.

One of the most fully featured vector graphics editors on android.

Create graphics, icons or designs. Save as SVG on PNG. Use special effects like linear and radial gradients and transparency to make your pictures look amazing.

Zoom in as much as you like and the vector images remain sharp.

## Cube Artist 3D

Create 3D artworks on your tablet or phone! See what you can create out of building blocks in this 3D model making app.

Just tap on the side of a cube to fix another cube to it.

You can choose from many different colors of cubes.

You can save your creations to the gallery so you can share them with your friends.

Load and save your creations to work on them later.

See if you can create: animals, people, trees, furniture, houses, members of your family, your pets, geometrical shapes, or whatever your imagination can think of!

Then if you get bored of your creation you can press the explode button to blow it up!!

Have fun with this 3D model maker.

## 3D Model Maker

3D Model Maker lets you create virtual 3D models in your computer. You can create anything your imagination can think of. (Not limited to simple cubes or blocks like some apps!) It uses meshes of polygons just like they used in Toy Story.

It uses the 3DS file format which is compatible with lots of professional software like Autodesk 3D Studio, Maya, AutoCAD and Blender. This means you can create your models on the move on your tablet or PC and import them later into the 3D package of your choice.

Use tools like "extrude", "subdivide", "smooth", "pull" and many more to create your 3D objects. Move the individual vertices around or move select multiple vertices with the box select tool.

Paint the faces different colors. Rotate the 3D shapes at any angle or choose from a list of views.

It uses the 3DS file format which is compatible with lots of professional software like Autodesk 3D Studio, Maya, AutoCAD and Blender. This means you can create your models on the move on your tablet or PC and import them later into the 3D package of your choice.

Use tools like "extrude", "subdivide", "smooth", "pull" and many more to create your 3D objects. Move the individual vertices around or move select multiple vertices with the box select tool.

Paint the faces different colors. Rotate the 3D shapes at any angle or choose from a list of views.

Features:

* 3D modelling

* Painting

* UV maps

* Mesh primitives: Cube, sphere, cone, cylinder, torus

## Cogs and Gears

Move the cogs into place in this challenging puzzle game! You have several gear wheels and all you have to do is connect them together!

The aim of the game is to get all the spiral cogs turning. Sounds simple?

How fast can you do it? The faster you complete each level the more stars you get. Can you get 3 stars on each level?

Once you have got all the gears turning you unlock the next level. But you can go back and try again and do it even faster!

There are fifteen challenging levels with more to come!

You can pick up this game and start playing.

If you like mechanical things you will like this game!

The game has fabulous 3D graphics and animations.

## Knotty

Untangle the knot with this knotty puzzle game! This knotty problem is not as easy as it looks! The knot will wiggle about making each level more difficult.

There is an easy and a difficult mode depending on how knotty you want the rope to be.

You have to be dexterous and have your wits about you. All the knots can be untangled you just need to untangle the rope in the right order.

Untangle the rope before the time has run out!

## Smash the eggs!

Slash the eggs in half as they fly out of the bird's nest to reveal what's inside. There are several types of eggs with different contents. Lots of fun and great stress relief!

If you enjoy games like "Fruit Ninja" then you will like this game too!

This is a really fun game for everyone. How many eggs can you smash at once?

Just slice your finger through the air and smash the eggs in half. The eggs will slice apart exactly in the direction your finger moves.

This game is 3D and has real life physics!

## Chess 3D

This is a chess game featuring a very powerful chess engine.

Delightfully 3D rendered graphics and captivating animations.

Play at many difficulty levels. Set the time for the computer to think.

Play against a machine or a human or watch the machine play against itself!

Chess is a two person strategy game which originated in Eastern India in the 6th century.

Each player controls and army which have to attack the other army and capture the king. Using soldiers (pawns), castles (rooks), bishops, horses (knights) and your queen you must defend your king.

Each piece has special moves which are well known: A pawn can move forward only one square (or two on its first move), a rook moves in straight lines, the bishop moves diagonally, the queen moves in any direction and the knight moves one square in one direction and two squares at right angles.

## Hair Balls

There are a lot of hungry hair-balls and the aim of the game is to feed them... with other hair-balls! You just have to aim the cannon and shoot the hair-balls into their mouths. Then they turn into bigger hair-balls! Sound simple enough?

These hair-balls can be fed to even bigger hair-balls and so on! That's how nature works! It's the circle of life. The hairballs live in a big field with abandoned crates and boxes. Can you help these cute little critters to reach their destiny?

There are lots of levels to try out. And you can retry the levels to try and get three stars!

This game has real life physics and has artistically painted backgrounds. The characters are rendered with 3D graphics.

This game is a physics game like Angry Birds.

Credits

----------

Uses NVIDIA® PhysX® physics

Uses some sounds from freesfx.com

Created with the Unity 3D game engine

Game designed by Paul Bird

## Frogspawn bubble shooter

Shoot bubbles at the frogspawn to release the baby tadpoles and set them free!

The pond is drying up and only you can help the little frogs.

Tap the screen to shoot the frogspawn bubbles.

Match up three bubbles of the same colour to make them burst and the tadpoles can swim out!

Watch the little tadpoles swim free!

This is a fun twist on the classic bubble shooter games.

The frogspawn comes out faster and faster.

How long can you last?

Save the baby frogs!!

Fun facts: Tadpoles are sometimes called "pollywogs". A tadpole is the larval stage of a frog or toad. Tadpoles first grow arms and then legs before crawling onto land. Then they become adult frogs. Female frogs lay frogspawn and the cycle carries on again! Tadpoles can often be found in garden ponds. Frogs and toads are amphibians. Toads are the same as frogs except they generally have drier skin.

We hope you like playing "Frogspawn bubble shooter"! Frogs are cool! :)

## Pick the apples!

The farmer's wife wants to make an apple pie for her tea.

Pick the apples off the apple tree as fast as you can.

But watch out! If you don't pick the apples fast enough the worms will eat them!

This game requires fast actions and quick fingers!

"Pick The Apples" is fun to play and not as easy as it looks!

Can YOU pick all the apples?

How to play:

Tap on the apples to pick them for your basket. You have to be quick to pick all the fruit.

## Help! Aliens!

A fast paced 3D game involving shooting aliens!

The aim of the game is to kill all the aliens on each level and find the exit. You must collect all the energy rubies to keep your life support up.

Each of the missions contains different types of aliens and their robots. Some fly, some crawl and some stomp.

You have two types of weapons. A gun and grenades. With the gun you can aim precisely and kill one alien at a time. With the grenades you can kill lots of aliens at once but you only have so many. (And get out of the way fast in case you blow yourself up!!)

## Little Vector Library Demos

The Little Vector Library is a 2D software graphics library for .NET. It is platform independent library so it can work on any system provided you can compile dot Net code for it. For example you could use it on PC, Mac, XBox, PS3, Windows 8, Android and IOS among others. For more information about using and downloading the library please visit http://littlevectorlibrary.blogspot.co.uk/p/about.html

It is compatible with the Unity 3D game engine so you can map the images onto 3D shapes.

Things it is useful for are:

* Drawing nice text such as for scores

* Making procedural graphics.

* Drawing graphs

* Drawing menus

* Drawing HUD or GUI displays.

## Wild Animal Racing

Wild Animal Racing is a exciting go-kart simulation game with a twist. Play as an elephant, a lion, a zebra, a giraffe, a rhino or a hippo! Play against the other animals or against a friend on the same tablet with the split-screen mode!

Race your car around tracks in Egypt, Paris and Holland in the World Tour!

Drive your car around the coast and around the rim of a volcano!

Collect the diamonds for extra speed!

Pick up weapons such as rockets, a sledge hammer, or wheel spikes to knock your opponents off course!

All in amazing 3D graphics!

A super crazy fun game for everyone!

App features

---------------------------------------------

•, Six characters to choose from!

•, Two players can play on one device!

•, Four themed cups!

•, Twelve unique tracks!

•,Multiple comedy weapons!

This game is not just another clone of "Super Mario Kart" or "Angry Birds Go", it is completely original with it's own characters and tracks!

## Mini Chess

Can you beat the computer in this small but challenging game of chess? It's harder than it looks! Test your skill and try to outwit the computer. On such a small board any mistake could cost you your life!

Play against the computer or against another human being. The aim of the game is to capture the opponent's king. You can move the castles horizontally, the bishop diagonally, the knight two across and one up and the king by one square in any direction.

These are classic chess moves yet this simple game is just as tricky as the large board because every move counts!

Sometimes you may want to sacrifice a piece in order to win the game. Can you work out how to beat the machine? (It can be done!)

This is a game where a beginner at chess could outwit a grandmaster!

Play against the computer or against another human being. The aim of the game is to capture the opponent's king. You can move the castles horizontally, the bishop diagonally, the knight two across and one up and the king by one square in any direction.

These are classic chess moves yet this simple game is just as tricky as the large board because every move counts!

Sometimes you may want to sacrifice a piece in order to win the game. Can you work out how to beat the machine? (It can be done!)

This is a game where a beginner at chess could outwit a grandmaster!