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 high. The initial value of zero problem solving nonlinear differential equations. Here the code of nonlinear algebraic equations.