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杂七杂八啥都有

2019.8.26

资料(课件):书 Numerical Method

  1. 10选修,牛顿法
  2. 切比雪夫多项式
  3. 特征值,特征向量(Egen)

期末 60% + 期中 & 作业 & 其他 40%
助教:超算楼 510 & 512

Introduction & Course Overview

MATLAB - Mathmatical Laboratry 非常重要

Computer Errors - Recognition and Solutions

|| x - x* || 解误差
|| Ax - b || 残差
Round-off (Rounding error) 舍入误差:一般认为是硬件误差
Truncation error (Truncational / Truncating) 截断误差:软件/代码误差(课程主要内容)

Roots f(x) = 0

Linear Systems(线性方程组) - Setting up multiple sets of equations and solution techniques

Over-determined 超定(无解)
Under-determined 欠定(无穷解)
Well-determined 恰定

LU Decomposition - Technique to decompose matrices

Lower & Upper triangular 下三角与上三角(来源于莱布尼兹的符号)

Eigen-analysis - finding the eigenvalues and eigenvector

Fitting Data 拟合

插值(计算机上大概有1 eps 的误差)

  1. 拉格朗日插值:应用于数值微分
  2. 牛顿插值

Numerical Differentiation

Numerical Intergration

ODE (Ordinary Differential Equation, 常微分方程)

Numerical Errors

Computer types

Higher-Order Programming

Tools

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