The method assigns all poles of the closed system to a special region in the left side of the complexplane to make the closed system obtain a desired degree of stability.
该方法把闭环系统的全部极点配置在复平面左半面的一个特定的区域之内，使闭环系统具有预期的稳定度。
2
This paper studies the area of planeclosed folding by complex number method and proves several propositions about area of planeclosed folding.