一种重要的情形是常系数二阶线性齐次微分方程。
An important case is the linear homogeneous second-order differential equation with constant coefficients.
本文主要探讨可化为常系数的线性微分方程的求解问题。
This paper mainly deals with the solution to the linear differential equation that can be changed into the one with constant coefficients.
本文论述线性常系数系统的有限元模型修正中的若干重要问题。
Several important problems for updating finite element model of linear constant coefficient system are demonstrated.
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