This app is to calculate quadratic equations. Features • Solve quadratic equation • Show real roots and complex roots • Calculate maximum or minimum point • Save result in text file • Support English, German, French, Italian, Spanish, Portuguese, Japanese, Traditional Chinese and Simplified Chinese Features in PRO version only: • No Ads • Show equation in graph Note : 1. For those who need support please email to me Do NOT use either the feedback area to write questions, it is not appropriate and that is not guaranteed that can read them.