Introduction - If you have any usage issues, please Google them yourself
Solving the root of the function equations and some differential equations iteration function, including: realistic coefficient algebraic equations all root Newton- downhill law, the region between the points of fixed-step Changlong grid- Kutta method, integral variable step by step Changlong grid- Treasury Tajikistan law, integral variable step by step method of Kiel, truth-seeking coefficient algebraic equations all root qr method