For solving a fourth degree equation, enter the real coefficients 'a', 'b', 'c', 'd' and 'e' and press 'Solve'.
The solution can be easily copied.
In order to solve another polynomial equation, remove the previous equation and results with the 'Clear' button, enter the new coefficients and press 'Solve'.
In case of large coefficients, the calculator automatically changes font size.
Calculator is available in five languages, including English, German, Czech, Russian and French.
Application chooses the default interface language based on the language settings of the device where it is running. However, you can easily change the language after you run the application.