The principles and properties of these two methods are described, studied, and summarized in detail.It is shown that DQM is equivalent to a special kind of mixed collocation method.

• 全面介绍和总结了两种方法的原理和性质，证明了微分求积法实际是一种特殊的混合配点法，并首次证明了微分求积单元法是加权残值法中子域法与特殊混合配点法相结合的一种方法。