Polynomial Solver

Simple application for finding the real and complex roots of polynomial equations up to the third degree. Designed with ease of use in mind, resulting in a simple, one-page interface with a help button. Roots should be exact as only closed form solutions were used (no numerical methods), however inaccuracies can occur due to floating point precision errors. Although they should be unlikely due to the use of the double-precision 64-bit floating point data type.
Please feel free to email me with any suggestions or error reports, thanks.