一.定积分的应用

本文深入探讨了数学分析的核心内容,包括定积分应用、微分方程解法、向量代数与空间解析几何、多元函数微分学、二重积分、曲线曲面积分以及无穷级数的详细讲解。适合于高年级本科生和研究生作为复习资料。

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一.定积分的应用

1.平面图形的面积

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2.平面曲线的弧长

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3.反常积分的计算

无穷限的反常积分

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  • 极限存在,反常积分收敛

  • 极限不存在,反常积分发散

无界函数的反常积分

如果函数f(x)在点 a 的任意邻域内无界,则称 a是f(x)的瑕点

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相当于把那个a向右移一点点

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讨论敛散性翻课件吧

二.微分方程

1.类型的判别

2.可分离变量微分方程求解

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3.二阶常系数线性微分方程的求解

齐次

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共轭复根的求法

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例题

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推广到n阶

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二阶常系数非齐次线性微分方程

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4.可降阶微分方程的求解(第一种类型)

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5.线性微分方程解的结构

5.1解的线性无关性

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5.2二阶齐次线性微分方程解的结构

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5.3二阶非齐次线性微分方程解的结构

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三.向量代数与空间解析几何

1.向量的运算(模长,向量积,投影)

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2.平面和平面的位置关系与夹角,平面和直线的位置关系与夹角

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3.平面方程的计算

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4.旋转曲面的方程

5.投影曲线的方程

6.空间直线及其方程

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四.多元函数微分学

1. 二元函数的极限与连续

2.偏导存在与可微之间的关系

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3. 多元函数偏导数的计算与复合函数偏导数的计算

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4.曲线的切线与法平面,曲面的切平面与法线

4.1曲线的切线与法平面

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4.2曲面的切平面与法线

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5.二元函数极值的充分条件

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6. 驻点的计算

驻点是满足一阶偏导同时为零的点

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7.条件极值的求解

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五.二重积分

1. 对称性和奇偶性

2. 二重积分的计算(化为二次积分、交换积分次序)

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3.二重积分大小的比较

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4.二重积分的几何意义

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六.曲线曲面积分

1. 第一、二类曲线积分的计算

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2. 第一类曲面积分的计算

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题型二

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3. 格林公式

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4. 积分与路径无关型

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七、无穷级数

0.概念(自己加的)

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1.级数收敛的性质及判别(正项级数、交错级数、等比级数等)

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判断交错级数的敛散性

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2. 求幂级数的收敛半径

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3. 泰勒级数系数的求法

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