全三次系统的三阶细鞍点公式

The Three Saddle Point Values Formula of a Cubic System

给出了一般三次系统的－～三阶鞍点量公式，为进一步研究更多阶的鞍点量公式做准备．

Gives the first, second and third saddle point values formula of a cubic system. It getsready for researches of more than three saddle point values.