NonlinearEquationSolving Solving non-linear equation with numeric methods Source Lib Library by Sergey L. Gladkiy: http://www.sergey-l-gladkiy.narod.ru/ Example https://www.wolframalpha.com/input/?i=%7Bx%5E2+%2B+y%5E2+%3D+1,+x%5E2+-+y+%3D+0%7D YoutTube Video (german) https://youtu.be/BSx-WkdPL5o