【摘要】 应用Mathematica系统的强大的符号运算功能以及该系统提供的控制语句 ,对一类弱非线性系统櫣 +w20 u =εf(u ,·u)的有效渐近展开式解进行了研究 ,用Mathematica系统实现了一种古典的奇异摄动方法—LindstedtPoincare方法的自动求解问题 ,并调试通过程序做成了程序包更多还原

【Abstract】 Some solutions of effectively asymptotic expansions are studied in this paper which would use powerful symbolic operation and control sentence provided by Mathematica system to a weakly nonlinear system ü+w 2 ou=εf(u,·u),and some of automatically solving problems of Lindstedt Poincare’s method are considered,such as method of classially singular pertubations.On the other hand,we have compiled these programs and integrated them into packages.更多还原