二阶常系数线性微分方程的积分形式通解及首次积分

The General Solution of Linear Differential Equation of Second Order with Constant Coefficient in Integral Form and Its First Integral

利用一阶线性微分方程的通解 ,导出了二阶常系数线性微分方程的积分形式通解 .研究了通解的结构 ,并给出了首次积分 .

In this paper, the general solution of linear differential equation of second order with constant coefficient in integral form is produced by using that of linear differential equation of first order. Its structure is reserched and its first integral is given.