数学软件Mathematica4.1在微分方程定性理论中的应用研究(1)

Study on Applications of Mathematica 4.1 Software to the Determine Theory of Ordinary Differential Equation(1)

本文及本文的续篇主要介绍数学软件 Mathematics4 .1的基本功能 ,以及它在微分方程定性理论 ,特别是多项式定性理论中的应用。本文通过利用 Mathematics4 .1,计算了一类三次系统的焦点量公式 ,并指出了文献[9]中一个错误。

In this paper and its continuation,we mostly introduce Software Mathematics4.Is'basec function and its application in calculating and deducing ,we obtained focus value of a special third system ,by the way ,we point out a error in literature