积分因子的存在性及求法论析

Analysis of the existence and solving method about integral factor

积分因子法的起源相对较晚,但是其对于求解常微分方程的作用却是相当巨大的。要想将一般的常微分方程转变成全微分方程的形式,最重要的一个步骤就是求出积分因子。文章对积分因子的存在性及求法进行了论述。

Origin of integration factor relatively late, but its role for solving ordinary differential equations is quite enormous. To convert ordinary differential equation ODE sake, the most important step is to determine the integral factor. The article Integrating Factor Existence and Seeking discussed.