龙格-库塔(Runge-Kutta)方法是一种在工程上应用广泛的高精度单步算法。由于此算法精度高，采取措施对误差进行抑制，所以其实现原理也较复杂。该算法是构建在数学支持的基础之上的。-Runge- Kutta (Runge-Kutta) method is widely used in engineering high-precision single-step algorithm. Because this algorithm is high precision, to take measures to suppress the error, so its implementation principle is more complex. The algorithm was built on the basis of mathematical support.