【正文】
calculational method。綏化學(xué)院本科畢業(yè)設(shè)計(論文)求函數(shù)極限的若干方法Suihua University Graduation Paper Several Methods of Solving Functional LimitStudent name Student number Major Supervising teacher Suihua University摘 要 求解函數(shù)極限是高等數(shù)學(xué)的一個重要內(nèi)容,本文主要探討一元函數(shù)和二元函數(shù)極限的求法.針對一元函數(shù)給出了利用極限的定義、洛比達法則和變量代換等求函數(shù)極限的方法;針對二元函數(shù)給出了利用二元函數(shù)極限的定義、利用極坐標和初等函數(shù)的連續(xù)性等方法求二元函數(shù)的極限.并通過具體實例,對這些方法進行了分析比較.關(guān)鍵詞:函數(shù);極限;計算方法;連續(xù)性 AbstractSolving functional limit is an important content in higher mathematics. This paper mainly investigates the solutions to the limit of the function of one variable and binary function. For the function of one variable, this paper gives the methods of solving functional limit using definition of limit, L’Hospital’s rule, and variable substitution, and so on. For binary function, this paper gives the methods of using limit definition of binary function, polar coordinates, continuity of elementary function, etc. And these methods by specific examples are analyzed and pared.Key words: function。 limit。 continuity目 錄摘 要 IAbstract II第1章 函數(shù)極限的定義及定理 1第1節(jié) 一元函數(shù)極限的定義及相關(guān)定理 1第2節(jié) 二元函數(shù)極限的定義及相關(guān)定理 4第2章 函數(shù)極限的計算方法 6第1節(jié) 一元函數(shù)極限的計算方法 6第2節(jié) 二元函數(shù)極限的計算方法 13結(jié) 論 17參考文獻 18致 謝 19III綏化學(xué)院2012屆本科生畢業(yè)論文極限是高等數(shù)學(xué)的基礎(chǔ),也是高等數(shù)學(xué)教學(xué)過程中的一個