This file conclude of five codes , four of them in Mathematica program and one in C++. 1. Erk4.nb. this code represent the explicit Runge Kutta method of order four for solving first order ODE. 2. RK45.nb This code r

matlab program for runge kutta 45

DOPRI54 solves system of ODEs with the Dormand and Prince 54 code.

变步长四阶龙格库塔法，可自己控制误差精度，可用于变参微分方程组，亲测可用(variable-step runge-kutta)