典型的数值分析程序，用四阶龙格－库塔法求解微分方程初值问题-typical numerical analysis procedures, with four bands Runge - Kutta method to solve initial value problems

龙格库塔法解决微分方程Mathematica编译实现。可以解决微分方程，四阶。-Runge - Kutta method to solve differential equations Mathematica compiler to achieve. Differential equations can be solved, four bands.

运用四阶龙格-库塔法解一阶常微分方程(定步长)-four bands using the Runge - Kutta method of first-order differential equation (fixed step)