【摘要】 本文在比较了常微分方程(组)数值解的各种方法基础上,选定了四阶龙格——库塔(Runge-kutta法),法解决常微分方程(组)的初值问题,给出了固定步长的Runge-kutta结构程序和变步长的Runge-kutta结构程序,并通过具体例子对用这两种方法求解常微分方程数值解的精度作了比较。更多还原

【Abstract】 In this paper,various methods of numerical value solutions of differential equations are compared. We choose tetrad Runge-Kutta method to solve initial value problem of differential equations ,give R-K structure program of fixed step length and variable step length. Precision of methods of methods of two kinds are compared in a example.更多还原