中文说明：控制理论与稳定性理论，根轨迹分析是检查系统的根如何改变系统参数通常反馈系统内的增益变化的图形方法。这是一个技术用作领域的经典控制理论由 Walter R.埃文斯可以确定系统的稳定性的稳定性判据。根轨迹绘制中复杂的 s 平面的闭环传递函数的极点为增益参数的函数。 这些文件提出了一个简单的算法，在此领域中作出非常有用的研究。
English Description：
In control theory and stability theory, root locus analysis is a graphical method for examining how the roots of a system change with variation of a certain system parameter, commonly a gain within a feedback system. This is a technique used as a stability criterion in the field of classical control theory developed by Walter R. Evans which can determine stability of the system. The root locus plots the poles of the closed loop transfer function in the complex s-plane as a function of a gain parameter. These files presents a simple algorithm to make very usefull studies in this field.