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介绍δ算子、Δ变换及复数域的欧拉算子ε,证明了欧拉算子的稳定域 ,提出了一种新的基于欧拉算子的劳斯判据
We introduce the δ operator, Δ transform and the Euler operator ε in the complex domain, and prove the stability of the Euler operator. We propose a new Routh criterion based on the Euler operator