Description
Calculator++ is an advanced, modern and easy to use scientific calculator #1.
Calculator++ helps you to do basic and advanced calculations on your mobile device.
Calculator++ helps you to do basic and advanced calculations on your mobile device.
Discuss Calculator++ on Facebook: http://facebook.com/calculatorpp
IMPORTANT:
1. Always check angle units and numeral bases: trigonometric functions, integration and complex number computation work only for RAD!!!
2. Application contains ads! If you want to remove them purchase special option from application settings. Internet access permission is needed only for showing the ads. ADS ARE ONLY SHOWN ON THE SECONDARY SCREENS! If internet is off - there are no ads!
Features:
++ easy to use
++ home screen widget
+ no need to press equals button any more - the result is calculated automatically
+ smart cursor positioning
+ copy/paste in one button
+ landscape/portrait orientations
++ drag buttons up or down to use special functions, operators etc
++ modern interface with possibility to choose themes
+ highlighting of expressions
+ history with all previous calculations and undo/redo buttons
++ variables and constants support (build-in and user defined)
++ complex number computations
+ support for a huge variety of functions
++ expression simplification: use 'identical to' sign (≡) to simplify current expression (2/3+5/9≡11/9, √(8)≡2√(2))
+ support for Android 1.6 and higher
+ open source
NOTE ABOUT INTERNET ACCESS: Calculator++ (version 1.2.24) contains advertisement which requires internet access. To get rid of it - purchase a version without ads (can be done from application's preferences).
FAQ
How can I get rid of the ads?
You can do it by purchasing the special option in the main application preferences.
Why Calculator++ needs INTERNET permission?
Currently application needs such permission only for one purpose - to show ads. If you buy the special option C++ will never use your internet connection.
How can I use functions written in the top right and bottom right corners of the button?
Push the button and slide lightly up or down. Depending on value showed on the button action will occur.
How can I toggle between radians and degrees?
To toggle between different angle units you can either change appropriate option in application settings or use the toggle switch located on the 6 button (current value is lighted with yellow color).
Also you can use deg() and rad() functions and ° operator to convert degrees to radians and vice versa.
Examples:
268° = 4.67748
30.21° = 0.52726
rad(30, 21, 0) = 0.52726
deg(4.67748) = 268
Does C++ support %?
Yes, % function can be found in the top right corner of / button.
Examples:
100 + 50% = 150
100 * 50% = 50
100 + 100 * 50% * 50% = 125
100 + (100 * 50% * (25 + 25)% + 100%) = 150
Note:
100 + (20 + 20)% = 140, but 100+ (20% + 20%) = 124.0
100 + 50% ^ 2 = 2600, but 100 + 50 ^ 2% = 101.08
Does C++ support fractional calculations?
Yes, you can type your fractional expression in the editor and use ≡ (in the top right corner of = button). Also you can use ≡ to simplify expression.
Examples:
2/3 + 5/9 ≡ 11/9
2/9 + 3/123 ≡ 91/369
(6-t) ^ 3 ≡ 216 - 108t + 18t ^ 2 - t ^ 3
Does C++ support complex calculations?
Yes, just enter complex expression (using i or √(-1) as imaginary number). ONLY IN RAD MODE!
Examples:
(2i + 1) ^ = -3 + 4i
e ^ i = 0.5403 + 0.84147i
Can C++ plot graph of the function?
Yes, type expression which contains 1 undefined variable (e.g. cos(t)) and click on the result. In the context menu choose 'Plot graph'.
Does C++ support matrix calculations?
No, it doesn't
Keywords: calculator++ calculator ++ engineer calculator, scientific calculator, integration, differentiation, derivative, mathematica, math, maths, mathematics, matlab, mathcad, percent, percentage, complex numbers, plotting graphs, graph plot, plotter, calculation, symbolic calculations, widget
Reviews
Confusing for me I tried to use this calculator for Algebra 2. Way too advanced for me. Can't even figure out how to calculate zeroes....
Absolutely amazing Calculator no.1. Its so smooth, so fast and so intuitive that I give 5 stars. I personally dont use calculator in small window mode, but its a great feature too. Thank you for that!
Almost impossible to use Can't enter 2nd function 50% of the time, regardless of speed or distance or waiting time for slide movement, just frustrating and virtually unusable. Nice idea, but bad implementation. Some functions just don't work, for instance ∏(1+1/x, x, 1, 20) only evaluates up to 10 factors, beyond it's stuck...
Good The button are a bit finicky, Mich room for interface and functionality improvement. Finding simple things like the roots should be easier.
Best of its kind, kudos for the developper Has tons of functions & features, very useful for statistics supporting copy paste. App is always improving, now plots in 3d and more. Great!
Critical review Hi, first of all the apps is very good when compared to the others. I almost going to buy this app. But i have a few questions and suggestions. 1. How does the equation generates the graph? I can put the equation of x^2. But i can't put y^3=x+5. Putting '=' will cause error. 2. There's no solving function for equation. We give the equation and put value to x and y, then we can find the value. 3. Could you compile a help fild inside the app? It would be very helpful. Thanks! Looking forward for updates.
What's New
Graph plotter completely reworked
Added support for graphing several functions
Added 3D graphing capability
Added support for graph screenshots
Fixed issues with user defined functions
Other fixes
Similar
Casio Scientific Calculator
Powerful simulator of the classics calculators. With advanced features and easy to use. The same that we all know but now in your Smartphone.
* Percentages
* Memories
* Trig functions in degrees, radians or grads
* Scientific, engineering and fixed-point display modes
* Configurable digit grouping and decimal point
Scientific Calculator
A calculator with 10 computing modes in one application + a handy scientific reference facility - different modes allow: 1) basic arithmetic (both decimals and fractions), 2) scientific calculations, 3) hex, oct & bin format calculations, 4) graphing applications, 5) matrices, 6) complex numbers, 7) quick formulas (including the ability to create custom formulas), 8) quick conversions, 9) solving algebraic equations & 10) time calculations.
Functions include:
* General Arithmetic Functions
* Trigonometric Functions - radians, degrees & gradients - including hyperbolic option
* Power & Root Functions
* Log Functions
* Modulus Function
* Random Number Functions
* Permutations (nPr) & Combinations (nCr)
* Highest Common Factor & Lowest Common Multiple
* Statistics Functions - Statistics Summary (returns the count (n), sum, product, sum of squares, minimum, maximum, median, mean, geometric mean, variance, coefficient of variation & standard deviation of a series of numbers), Bessel Functions, Beta Function, Beta Probability Density, Binomial Distribution, Chi-Squared Distribution, Confidence Interval, Digamma Function, Error Function, Exponential Density, Fisher F Density, Gamma Function, Gamma Probability Density, Hypergeometric Distribution, Normal Distribution, Poisson Distribution, Student T-Density & Weibull Distribution
* Conversion Functions - covers all common units for distance, area, volume, weight, density, speed, pressure, energy, power, frequency, magnetic flux density, dynamic viscosity, temperature, heat transfer coefficient, time, angles, data size, fuel efficiency & exchange rates
* Constants - a wide range of inbuilt constants listed in 4 categories:
1) Physical & Astronomical Constants - press to include into a calculation or long press for more information on the constant and its relationship to other constants
2) Periodic Table - a full listing of the periodic table - press to input an element's atomic mass into a calculation or long press for more information on the chosen element - the app also includes a clickable, pictorial representation of the periodic table
3) Solar System - press to input a planet's orbit distance into a calculation or long press for more information on the chosen planet
4) My Constants - a set of personal constants that can be added via the History
* Convert between hex, oct, bin & dec
* AND, OR, XOR, NOT, NAND, NOR & XNOR Functions
* Left Hand & Right Hand Shift
* Plotter with a table also available together with the graph
* Complex numbers in Cartesian, Polar or Euler Identity format
* Fractions Mode for general arithmetic functions including use of parentheses, squares, cubes and their roots
* 20 Memory Registers in each of the calculation modes
* A complete record of each calculation is stored in the calculation history, the result of which can be used in future calculations
An extensive help facility is available which also includes some useful scientific reference sections covering names in the metric system, useful mathematical formulas and a detailed listing of physical laws containing a brief description of each law.
A default screen layout is available for each function showing all buttons on one screen or, alternatively, all the functions are also available on a range of scrollable layouts which are more suitable for small screens - output can be set to scroll either vertically (the default) or horizontally as preferred – output font size can be increased or decreased by long pressing the + or - buttons
A full range of settings allow easy customisation - move to SD for 2.2+ users
Please email any questions that are not answered in the help section or any requests for bug fixes, changes or extensions regarding the functions of the calculator - glad to help wherever possible.
This is an ad-supported app - an ad-free paid version is also available for a nominal US$ 0.99 - please search for Scientific Calculator (adfree)
Calculator Plus Free
USA TODAY named Calculator Plus among its "25 Essential Apps", calling it the "handy calculator app that's garnered great user ratings"
I'm Calculator Plus - the perfect calculator for Android. I'm easy to use and beautifully designed to do things better than your phone or handheld calculator ever did.
I love saving you time and effort. I remember everything you calculate, and let you review it anytime, making me perfect for shopping, doing homework, balancing checkbooks, or even calculating taxes. And if you quit the calculator and go do something else, it's all still here when you come back. You'll never need to type the same calculation twice again.
I'm attractive and effective and I make great use of your big, beautiful display:
- You'll never forget where you are in a calculation - I show you exactly what's happening at all times
- I remember everything, so you can take a break, then come back later and pick up where you left off
- I show your calculations in clear, elegant type that's easy to read, with commas just where they should be
- You can use backspace anytime to correct a simple mistake, instead of starting over
- Use memory to keep a running total you can actually see
- My percentage key shows exactly what it did, so you're not left confused
- Swipe memory keys aside for advanced math functions!
- NEW! Full support for Samsung Multi-Window - true multitasking for your Galaxy device.
- My intuitive, lovable design makes it simple to do everyday calculations on your phone or tablet
Let Calculator Plus and your phone or tablet finally put that handheld calculator to rest!
This is an ad supported version - our ad-free version is also available.
Calculator Plus (C) 2013 Digitalchemy, LLC
MyScript Calculator
With MyScript© Calculator, perform mathematical operations naturally using your handwriting.
Specially designed for Android devices.
Specially designed for Android devices.
Easy, simple and intuitive, just write the mathematical expression on the screen then let MyScript technology perform its magic converting symbols and numbers to digital text and delivering the result in real time.
The same experience as writing on paper with the advantages of a digital device (Scratch-outs, results in real time, …).
Solve mathematical equations by hand without actually having to crunch the numbers yourself
BENEFITS AND FEATURES
- Works on your smartphone (Use your finger or a capacitive stylus with your android phone (Samsung Galaxy phones, HTC, Motorola, Sony Xperia, LG Optimus and others)
- Works on your tablet (Take advantage of the S-Pen with your Galaxy Note, or use any capacitive pen with your Galaxy Tab family of tablets, HTC flyer, Lenovo Thinkpad, Asus transformer and others)
- Use your handwriting to write any arithmetic formula
- Write and calculate mathematical expressions in an intuitive and natural way with no keyboard
- Scratch-out gestures to easily delete symbols and numbers
- Portrait and landscape operation
- Redo and undo functions.
SUPPORTED OPERATORS
Basic operations: +, -, x, ÷, +/‒, 1/x
Misc. Operations: %, √, x!, |x|
Powers/Exponentials: ℯx, xy , x2
Brackets: ( )
Trigonometry: cos, sin, tan
Inverse trigonometry: acos, asin, atan
Logarithms: ln , log
Constants: π, ℯ, Phi.
*** IMPORTANT: If you wish to report a problem encountered with MyScript Calculator, or simply ask a question to Vision Objects, don’t use the application feedback space as it’s impossible for us to answer there.
Support website: http://myscriptsupport.visionobjects.com
***
Note about permissions:
We are asking permission to access Internet connection; this is to provide users the possibility to watch the video tutorial.
Future releases:
We are taking note of all your remarks and comments, many of you are asking us for equations, you can visit our web demo page, a web equation demo will show to you what we are planning to add in the future, visit:
Equation web demo:
http://webdemo.visionobjects.co/equation.html?locale=default
Handwriting recognition web demos:
http://webdemo.visionobjects.com/
Shake Calc - Calculator
A fully featured scientific calculator with a neat twist. It calculates when you shake your phone. For your everyday calculations it features an easy to use basic view with direct access to all the most used functions. For complex calculations you can switch to an advanced view with a simple swipe of your thumb. Both views offer large buttons for easy usage on small and large devices.
Features:
- Entering entire expressions
- Calculation history with support for copying old results to calculator memory or clipboard
- Full support for Percentages (50 + 10% = 55!)
- Calculation memory support
- Trigonometric and hyperbolic functions in radians, degrees and grads
- Predefined list of most used physical, chemical and mathematical constants
- Possibility to define custom constants for often used values
- Advanced result formatting with digit grouping etc. (customizable)
- Supports devices with large screens like Galaxy Tab or Xoom with optimized layout and large keys
- Supports different Themes (Classic, elegant & colorful)
Hints:
- To access advanced memory functions (M-, MC) and hyperbolic functions use the “2nd” key
- A short touch of the “C” key deletes the last digit/function, a long press clears the entire expression
Calculator Pro
Calculator done the right way!
Calculator Pro is designed for everyone looking for simplicity and functionality. You can enjoy using a standard calculator for basic operations or extend it into a scientific one for more complex calculations. Just tilt your Android device into the landscape mode!
Whether you’re a diligent student, an accountant, a banking manager, a housewife in charge of the family finances or even a maths genius, this calc will save both your effort and time and let you calculate anything you need!
• Two modes are available: do basic calculations in the Portrait Mode or tilt your smartphone or tablet and go advanced in the Landscape Mode
• Degrees and Radians calculations
• Memory buttons to help you out with complex calculations
• Choose the skin that suits you (additional skins available through in-app purchase)
• Accidentally input the wrong number? Just swipe with your finger to edit it!
• Copy and paste results and expressions directly into the current calculation
• History Bar: see your full calculation history directly on the screen
• Feel free to use it as an office calculator for all kinds of financial and statistical computations
• Use Calculator Pro for college studies, accounting, algebra and geometry lessons, engineering calculations and much more
• Work with decimal fractions, algebraic formulas, solve equations or just master your math skills
Now you can do any calculations on the go seamlessly!
Panecal Scientific Calculator
The Panecal is an editable expressions scientific calculator. The Panecal can indicate expressions on a multi-line display, allowing you to prevent input mistakes. In addition, moving the cursor on the display can easily modify expressions.
[Features]
* Re-editable and re-callable expressions
* Result and expressions history
* Decimal, Binary, octal, and hexadecimal
* Base conversions
* Main memory and 6 variable memories
* Percentages
* Arithmetic, trigonometric, inverse trigonometric, exponential, logarithmic function, power, power root function, factorial, and absolution.
* DEG, RAD, GRAD modes.
* Floating-point, Fixed-point, Scientific and Engineering display modes.
* Configurable decimal separator and grouping separator
* Configurable number of bits for base conversions
* BS key, DEL key, INS key.
* Landscape mode
* Key input confirmation by vibration and orange colors
[System environment]
Android OS 2.1 to 2.3.x
Android OS 3.x, 4.x
[Disclaimer]
APPSYS does not accept responsibility for any loss which may arise from reliance on the software or materials published on this site.
Mobi Calculator FREE
Universal free, every day use calculator with scientific features. One of top.
Good for simple and advanced calculations!
Good for simple and advanced calculations!
* Math expressions calculation (developed on RPN-algorithm but no RPN-calculators' kind UI!)
* Percentages (calculation discount, tax, tip and other)
* Radix mode (HEX/BIN/OCT)
* Time calculation (two modes)
* Trigonometric functions. Radians and degrees with DMS feature (Degree-Minute-Second)
* Logarithmic and other functions
* Calculation history and memory
* Digit grouping
* Cool color themes (skins)
* Large buttons
* Modern, easy and very user friendly UI
* Very customizable!
* NO AD!
* Very small apk
* More features will be added. Stay in touch! :)
http://facebook.com/mobicalc
http://twitter.com/mobicalc
OLD NAME is Cube Calculator.
PRO-version is currently available on Google Play.
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KW: mobicalc, mobicalculator, mobi, calc, cubecalc, mobicalcfree, android calculator, percentage, percent, science, scientific calculator, advanced, sine, simple, best, kalkulator, algebra, basic
RealCalc Scientific Calculator
Android's #1 Scientific Calculator. A fully featured scientific calculator which looks and operates like the real thing.
Looking for fractions? Degrees/minutes/seconds? Landscape mode? You need RealCalc Plus. See elsewhere on this page for the link, or select 'Upgrade' from the RealCalc menu.
RealCalc includes the following features:
* Traditional algebraic or RPN operation
* Result history
* Unit conversions
* Physical constants table
* Percentages
* 10 memories
* Binary, octal, and hexadecimal (can be enabled in Settings)
* Trig functions in degrees, radians or grads
* Scientific, engineering and fixed-point display modes
* Configurable digit grouping and decimal point
* Full built-in help
* A complete lack of advertising
RealCalc Plus contains all these features, plus:
* Fraction calculations and conversion to/from decimal
* Degrees/minutes/seconds calculations and conversion
* Landscape mode
* User-customizable unit conversions
* User-customizable constants
If you find RealCalc useful, please consider purchasing RealCalc Plus to support further development. Thank you.
FAQ:
* If you want data size conversions in multiples of 1024, use kibibytes, mebibytes, gibibytes, etc - see en.wikipedia.org/wiki/Kibibyte.
* If the percent key appears to give wrong answers, make sure you are pressing '=' at the end, e.g. '25 + 10 % =' will give 27.5.
* If sin/cos/tan functions don't give the answer you are expecting, make sure you are in the correct angle mode. Degrees, radians and grads are supported, indicated by DEG, RAD, GRAD in the display. Use the DRG key to change mode.
* If any of the digit keys are disabled, or the decimal point doesn't work, or you have answers with letters in, or basic arithmetic appears to be wrong, then you are in binary, octal or hexadecimal mode. Press DEC to return to decimal operation. If you don't need these modes, please make sure that 'Enable Radix Modes' is disabled in the settings.
* If you can't find HEX, BIN or OCT modes, go to the settings and make sure that 'Enable Radix Modes' is checked.
Please read the help for more information.
iOS7 Calculator
iOS 7 themed calculator
- All basic operations
-Support for scientific operations in landscape mode
-Switch to inverse trignometric functions with a dedicated key(2nd button)
-Switch between radian and degree swiftly with a dedicated key
-Backspace button ('just in case you make a mistake')
-Same effects on button click as iOS
-Support for both phones and tablets
-Supports screen size 4.0 and above
- All basic operations
-Support for scientific operations in landscape mode
-Switch to inverse trignometric functions with a dedicated key(2nd button)
-Switch between radian and degree swiftly with a dedicated key
-Backspace button ('just in case you make a mistake')
-Same effects on button click as iOS
-Support for both phones and tablets
-Supports screen size 4.0 and above
Tip
-long press reciprocal to implement sign change function
-long press backspace to clear the primary strip
More features coming soon with future updates
Leave us with a review which will help us enhance the app even more.
For any queries or assistance do mail us at touchwood.since2013@gmail.com
Scientific Calculator
PowerCalc is a powerful Android scientific calculator with real look. It is one of the few Android calculators with complex number equations support. Features:
* Real equation view editor with brackets and operator priority support
* Component or polar complex entry/view mode
* Equation and result history
* 7 easy to use memories
* Large universal/physical/mathematical/chemical constant table
* Degrees, radians and grads mode for trigonometric functions
* Fixed, scientific and engineering view mode
* Easy to use with real look
* Advertisement free!
Would you like to have multiline equation editor with equation syntax hightiting, actual bracket highlighting and trigonometric functions of complex argument support? Upgrade to PowerCalc Pro.
* Multiline equation editor
* Equation syntax highliting
* Actual bracket highliting
* Trigonometric functions with complex argument support
Stay tuned! We are preparing new functionalities:
* Unit conversions
* Radix modes
* Help
Found bug? Please contact us to fix it.
If you find PowerCalc useful please upgrade to PowerCalc Pro to support further development. Thank you!
scientific calculator
NHN-1 is a free advanced engineering and scientific calculator with a transparent widget that has fractions and percentage:
•A resizeable widget with arithmetic, percentage button, and fractions.
•Expression (formula) based input.
•Fraction input and output with conversion to proper fraction, mixed fraction and decimal. Even the quadratic or cubic root functions, for instance, will return fractions when the answer can be written as a fraction.
•Full history with buttons that load old results, in case you need to start over from a previous point.
•Unlimited memory slots that can be named and are always displayed on screen.
•Multiple input fields except on small phones. This let's you do short side calculations without losing your place.
•Pre-packaged functions for quadratic equations as well as many geometric formulae.
•Buttons that store user defined functions that are created by binding an argument to a binary operator.
•Visualization of multivalued complex functions (roots, inverse trigonometric, logarithm)
•Visualization of quadratic and cubic functions
•Visualization of angles returned from inverse trigonometric functions.
•Complex numbers are very easy to work with, and all functions work with complex numbers where they are defined (inverse hyperbolic cosine, for instance).
•There is a fourth layout for small phones that is not shown in the screen shots.
•A unit conversion utility that lets you build arbitrary composite units. Conversion factors are written to the history, so you can bind the factor with multiplication to do the same conversion many times.
The layouts are designed to be ergonomic for each of four device sizes in portrait and landscape. Here are some examples of what we've done to make the calculator easy and speedy to work with:
•On small tablets in landscape, the keys are split so you can operate the calculator with two thumbs.
•On small phones, the numeric keypad is right under your thumb when holding the device with one hand.
•Square root, square, inverse and negation are all close to the numeric keypad.
•On small tablets, the long "NHN-1" button is a gesture recognizer that lets you scroll the six input fields with your left thumb. That way you don't have to let go of the device with your right hand to click an input field.
Fraction Calculator Plus Free
I'm Fraction Calculator Plus and I'm the best and easiest way to deal with everyday fraction problems. Whether you're checking homework, preparing recipes, or working on craft or even construction projects, I can help:
- Wish you could find the time to check your kids' math homework? Now checking fraction math takes just seconds.
- Need to adjust recipe quantities for a larger guest list? Let me adjust your cup and teaspoon quantities.
- Working on a craft or home project in inches? Stop double-or-triple calculating on paper - let me do it once, accurately.
I'm attractive and effective and I make great use of either a phone or tablet display:
- I show your calculations in crisp, clear, elegant type that you can read at-a-glance from a distance.
- My innovative triple keypad display lets you type fast! (entering three and three quarters takes just 3 taps!).
- Every fraction result gets automatically reduced to its simplest form to make your job easy.
- NEW! Every result is also shown in decimal to make conversion a breeze.
- It couldn't be easier to add, subtract, multiply, and divide fractions.
Let Fraction Calculator Plus turn your phone or tablet into an everyday helping hand.
This is an ad supported version - our ad-free version is also available.
Fraction Calculator Plus (C) 2013 Digitalchemy, LLC
Calculator
A simple calculator with big buttons, large display and four basic functions: addition, subtraction, multiplication and division. All you really need in a calculator. No wasted space for functions you never use.
Simplify your life with this calculator app. Save time doing math homework, paying bills, adding up tips, resolving finances, and calculating your loan and mortgage payments.
Calculator features:
-Basic arithmetic (add, subtract, multiply, divide)
-Large buttons
-Supports tablets and smart phones
-Clear plus All Clear functionality
-Saves last calculation upon reopening calculator
-Calculates in order of input
-Free app
-Small app size
-Small ads at the top
-Formatted results (i.e. 5,152,225.32)
Download now and see the greatness of this basic calculator for free. No glasses needed.
Graphing Calculator
I believe every student in the world should have free access to graphing calculator and learn the amazing math and science to the next level.
Thanks for your support, Graphing Calculator recently got 1M+ downloads.
A Simple Graphing Calculator
- Added Basic Calculator
- Added Scientific Calculator
- Added Graphing Calculator
- Pinch Zoom for Graphing Calculator
- Take Screenshot of Graph
- Added Tablet Screen Size Support
- Improved User Interaction for Graphing Calculator
- Scientific Notation
- Radian vs Degree
- InApp purchase to remove ads banner
- copy and paste using clipboard
Please press Shift on the top left corner, if you don't find the operation key.
- buttons like ln, sqrt, log, 1/x, sinh, sinh-1, cosh, cosh-1, tanh, tanh-1
- abs means absolute value |x|
Calculator (CyanogenMod)
Calculator is focused on extending the traditional 4 function calculator, keeping its simplicity while still adding features used in higher level math. It uses the original Android calculator as a base.
The project was started by me in June 2012 and by October 2012 it was accepted into CyanogenMod. Since then, users of the app have helped greatly in cleaning up the ui, improving the matrix features, and translating the app into all the languages currently available. Without them, this app would be nowhere near as polished as it's become.
Because the app is intended as a full replacement, it's recommended that you hide your default calculator by either disabling it (v4.1+) or using a custom launcher. Otherwise, the similar app names may prove confusing.
Calculator has the following features and more:
-Basic arithmetic
-Trigonometry
-Complex numbers
-Graphs for X,Y functions
-Matrices
-Hexadecimal and Binary support
-Widget for lockscreen and launcher
-Floating calculator
-History of previous calculations
-Themeing support
-Google Glass support
The app is completely open source and the source can be downloaded at: https://github.com/Xlythe/android_packages_apps_Calculator/tree/ics
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Messenger ++
Messenger++ is an open-source multiprotocol instant messaging client for Android.
Source code is available on github: https://github.com/serso/android-messengerpp. If you want to participate in development, please, write an email: se.solovyev@gmail.com.
If you want to help translating the project, please, visit the following link: http://crowdin.net/project/messengerpp
If you have any suggestions or found a bug, please, leave a note on github: https://github.com/serso/android-messengerpp/issues
Notes++
Notes++ helps you to organize your notes.
Features:
1. Easy, responsive and user friendly interface
2. Full text search across your notes
3. Support of categories
IMPORTANT: application contains advertisement! If you want to remove it - purchase special option from application settings. Internet access permission is needed only for showing the advertisement. If internet is off - no advertisement is shown!
Keywords:
notes notepad notepad++ easy notes fast notes organize notes
create notes make notes easynotes fastnotes
Android Common Library
Examples of java library for Android OS, source code available on github: https://github.com/serso/android-common