一般而言，非线性常微分方程的求解都需要赋初值，初值对于求解非线性度高的微分方程是很重要的。初始值通过求解非线性微分方程的零问题得到。这里提供了非线性代数方程组的代码。-In general, the nonlinear ordinary differential equation solving initial value, the initial value is very important for solving nonlinear differential equations with