翻新时间:2023-08-05
曲线拟合在数学建模中的应用
目录
摘 要 1
Abstract 2
前言 3
1 数学建模简介 4
1.1 数学建模的概念 4
1.2 数学建模的1般方法和步骤 4
1.3 数学建模的重要意义 4
2 MATLAB简介 5
2.1 组成 5
2.2 MATLAB语言 6
3 曲线拟合 8
3.1 曲线拟合理论 8
3.2 曲线拟合的最小2乘法 8
3.3 线性最小2乘法 9
3.4 直线拟合 10
3.5 多项式拟合 10
3.6 用MATLAB作线形最小2乘拟合 11
4 MATLAB与曲线拟合在水塔流量估计模型中的应用 14
4.1 问题的提出 14
4.2 问题分析 14
4.3 模型假设 14
4.4 流量估计的解题思路 15
4.5 算法设计与编程 15
4.6 分析与改进 23
5 结束语 24
参考文献 25
致谢 26
摘 要
关键词:数学建模;曲线拟合;水塔流量
Abstract
Mathematics modelling is a classical method to the process scientific theory . Also, it’s a common method to solve all kinds of actual problems. Through the processing of abstract, simplification, supposition and introduction variable, we can express the actual problem with mathematics, establish the mathematical model, and adopt the advanced mathematics method and computer technology to carry on the solution . Generally speaking, the curve fitting is to use a suitable curve imitating, a group with (or multi-groups) the empirical datum, and then abtain mathematics relationship in line with the fact well. MATLAB is a new advanced language applying in the field of engineering calculation and the numerical analysis . This article will discuss MATLAB —— this powerful tool applying in the empirical datum analysis and processing. Utilize the relevant data about the flow of the water tower acquired in survey to realize the input of survey data for erperient into the computer ,first by way of the lowese square metheod and later through programming; then, the function expression will be worked out through MATLAB computation ,and the relationship between various physical volume can be showed clearly. Meanwhile the curve of function expression on the screen makes it quick, accurate and direct for figures analying and processing. The computed result corresponds to the real record basically.
Key words:mathematics modeling; curve fitting ; water tank current capacity
下载文档
网友最新关注
- summer vacation
- My English teacher
- The stars
- 冬天
- My father(我的爸爸)
- 学英语日记附教师评语-Today
- 我的老师(My Teacher)
- 英语日记范文
- My Mother
- 学英语日记附教师评语-lucky day
- My sky
- my best friend
- 我的元旦(My New Year's Day)
- 一次过圣诞节
- My bedroom(我的卧室 )
- 建筑读书笔记:走进安藤的光与水
- 土建基本知识(基本要点归纳)
- 土木工程专业实习报告
- 钢结构设计、施工常见小问题
- 景观设计中的“灰空间”
- 中小河流治理和中小水库除险加固工作方案
- 景区规划不等同城市规划
- 办公室装修从细节注意开始
- 电梯安装工程基础知识
- 螺旋钻灌注桩工程技术交底
- 公路水运试验检测机构等级评定程序
- CATV光缆设计
- 计算机病毒与反病毒技术研究
- 水利工程混凝土施工技术探讨
- 2011年市政施工员年终总结
- 《难忘的泼水节》随堂练习 巩固篇
- 《难忘的泼水节》 考点练兵2
- 《难忘的泼水节》 重点问题探究
- 《难忘的泼水节》 趣闻故事
- 《难忘的泼水节》 教案讲义2
- 《日月潭》 教案讲义2
- 《难忘的泼水节》 教案讲义1
- 《难忘的泼水节》随堂练习 提高篇
- 《日月潭》随堂练习 提高篇
- 《日月潭》随堂练习 巩固篇
- 《日月潭》 重点问题探究
- 《日月潭》 重难点分析
- 《日月潭》 教案讲义1
- 《日月潭》 教师语录
- 《日月潭》 写作指导