Quadratic Equation Solver

Calvico

- August 8, 2013

1

Listen Read Device Only Added Installed Loading device compatibility...

(178)

Description

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

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

3.9

178 total

5 94

4 31

3 18

2 7

1 28

Gabriel Bauza

??? Do you think you can make it step by step so you can actually see how a student would show his work?

Mikhail Volkovin

Amazing I have intense respect for this developer. Good interface, great how it gives the work. Love it.

User reviews

Calvico October 13, 2013

This is how I would show the work. Email me with specifics at quadratic@calvi.co so we can talk about it. Best of its kind. This app has helped me SO MUCH. I no longer have to do the tedious steps to solve quadratics. I can just plug in 3 numbers and BAM! Instantly solved. Works great with Quadratics Pro, as you also get the graphed form as well as Y intercept, vertex, and line of symetry. With both of these apps, you can do your homework quickly and still have work shown. I highly suggest you download this app.

It's Ok needs an update The settings menu option doesn't work and it's a little confusing to get started. Maybe just a little bit of instruction, just to help you get stayed. Since there are no settings to be changed ill modify my review

Calvico March 29, 2013

This app actually doesn't have any settings, I just forgot to take out the menu pop-up. I'll take it out in the next update, thanks for reminding me.
If you don't mind: What exactly was confusing at the start? Do you think a one-time pop-up saying, "Enter a number in each text-box to see how it works! (For example, try 15, 64, and 36)" would help? Calvico March 15, 2013

Would you mind expanding on why you feel this way? My app *is* a calculator *and* it shows the calculation step-by-step. Input three numbers and scroll to the bottom for the solution. Please revise your review to reflect my app accurately. Calvico March 21, 2013

I've troubleshot this issue on my brother's Optimus One phone, and everything runs smoothly. Would you mind going into more detail in your review so I can work it out? What's New

* Huge numbers no longer crash the app.

* Added a loading bar.

* Optimized a couple of calculations.

Additional information

Updated

August 8, 2013

Size

444k

Installs

10,000 - 50,000

Current Version

1.8

Requires Android

2.2 and up

Content Rating

Medium Maturity

Contact Developer

# Similar

1

Listen Read Device Only Added Installed ## Equation Solver

Alago

1

Listen Read Device Only Added Installed 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)

1

Listen Read Device Only Added Installed 1

Listen Read Device Only Added Installed 1

Listen Read Device Only Added Installed ## Quadratic Equation Solve/Graph

Emre DURNA

1

Listen Read Device Only Added Installed 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

1

Listen Read Device Only Added Installed 1

Listen Read Device Only Added Installed 1

Listen Read Device Only Added Installed ## Equation solver

Marc Ortiz Torres

1

Listen Read Device Only Added Installed This aplication has been made by Marc Ortiz to help other students to pass maths exams!

-This aplication can show you the results of the polynomial/ecuation.

-it supports until 5th degree.

-It tells and teach you how to do it.

-And also gives you exercices of different difficulties to improve your knowledge!

A Change Up creation

For more questions contact with: mrk.22.10@gmail.com

1

Listen Read Device Only Added Installed ## MyScript Calculator

Vision Objects

1

Listen Read Device Only Added Installed 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/

1

Listen Read Device Only Added Installed ## Calculator ++

Sergey Solovyev

1

Listen Read Device Only Added Installed 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

1

Listen Read Device Only Added Installed 1

Listen Read Device Only Added Installed 1

Listen Read Device Only Added Installed ## Science Equation Solver

Twisted Equations

1

Listen Read Device Only Added Installed Purchase the Full Version to gain access to all the features

Equations solver for common Equations in Maths, Chemistry and Physics.

Features:

->Selection of common equation solvers for Chemistry, Physics and Math.

->Solve for any variable in the equation.

->Similar equations grouped together to work as one (eg. Linear Motion)

->Unique tools for lab problems such as finding the limiting reagent and theoretical yield for a chemical reaction.

->Interactive Periodic Table with search function

Supports Tablets and Handsets with clean flowing UI's.

1

Listen Read Device Only Added Installed ## Universal Triangle Solver

Ctoutpris

1

Listen Read Device Only Added Installed This application is an universal solver for triangles. You give three parameters (sides or angles), and it automatically computes the remaining parameters and the area of triangle. The triangle thus determined is displayed.

It works with any right or non-right triangle, including the ambiguous case of the law of sines (the two solutions are given). Support angles in degrees, radians and grads.

Useful for trigonometry, roof computations, math, homework or CNC.

Feel free to email developer to request features, localizations, or anything else !

1

Listen Read Device Only Added Installed 1

Listen Read Device Only Added Installed ## Scientific Calculator

Scalea software

1

Listen Read Device Only Added Installed 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!

1

Listen Read Device Only Added Installed # More from developer

## Seismograph

Calvico

1

Listen Read Device Only Added Installed Seismotion is your seismograph app. It graphs, records, and exports the movement of your device very precisely.

Features:

- Record & export as much data as your phone can hold (exports a .csv format).

- Playback recordings (View Recordings -> Select a recording -> Playback)

- "Pinch-zoom" to increase/decrease sensitivity.

- Change the colors in the settings.

1

Listen Read Device Only Added Installed ## Seismograph Donate

Calvico

1

Listen Read Device Only Added Installed Differences between this and the free version:

- No ads

- No ads

That's all for now! If you use this, thank you for donating.

Please contact me with any bugs/feature requests.

Seismotion is your seismograph app. It graphs, records, and exports the movement of your device very precisely.

Features:

- Record & export as much data as your phone can hold (exports a .csv format).

- Playback recordings (View Recordings -> Select a recording -> Playback)

- "Pinch-zoom" to increase/decrease sensitivity.

- Change the colors in the settings.

1

Listen Read Device Only Added Installed