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An easy to use application to determine the roots of a quadratic equation.

A simple and easy to use application to determine the roots of a quadratic equation ax²+bx+c=0. Optionally, you can draw the graphic of the function y=ax²+bx+c.

If there are no real roots, you can also get the complex roots. The application will also show you the position of the complex roots in the complex diagram.

On version 2 you can find a new design and a new feature: You can now double tap over a number to change its signal.

If you find any bug or any other issue please report here or in the YouTube video before giving a negative rating. I'll be happy to help you by helping you to get a fix.

A commercial version, with some more features and without ads, is now available! Search for "Quadratic equations +"

What's New in the Latest Version 2.1

Last updated on Sep 1, 2015 New feature added:
The "zoom" functionality implemented in the commercial version is now available in the free version too. Please note that if your device has a high resolution and/or not enough memory to handle big graphics, the "zoom" function could not be able to zoom the image to some levels and will return an error.