[注意]这里有Matlab相关的教程下载!!!要的请进! - 第21页 - 编程交流 - 数模论坛

10a441 发表于 2006-11-21 04:12:36

谢了

kevengarne 发表于 2006-11-22 03:20:22

gjhjhg

animal_ych 发表于 2006-11-23 23:08:21

先看一下

wliangzd 发表于 2006-11-28 02:00:16

yea 好人

我狂需要，谢谢先

whiteghost 发表于 2006-11-28 13:33:42

xiexie

wjc 发表于 2006-11-28 17:22:58

那位大哥大姐帮帮忙吧（用MATLAB）谢谢用豪斯荷尔德(householder)变换对一般m*n阶的实矩阵进行QR分解，由于2范数在正交变换Q下保持不变，即<shapetype id="_x0000_t75">
<stroke></stroke><formulas><f></f><f></f><f></f><f></f><f></f><f></f><f></f><f></f><f></f><f></f><f></f><f></f></formulas><path></path><lock></lock></shapetype><shape id="_x0000_i1025" style="HEIGHT: 23.25pt; WIDTH: 131.25pt;"><imagedata></imagedata></shape>，因此我们可以通过QR分解简化最小二乘问题。实验要求：实验包含三个程序1、            householder变换   =house(x)2、            QR分解            =qrfenjie(A) （此文件名不能建为qr）3、            求出最小二乘问题   y=leastsquare (A,b)<span style="COLOR: black; FONT-FAMILY: 楷体_GB2312; FONT-SIZE: 12pt; mso-bidi-font-size: 16.0pt; mso-font-kerning: 1.0pt; mso-hansi-font-family: 宋体; mso-bidi-font-family: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">其中第二个函数要调用第一个函数，第三个函数调用第二个函数。以一个最小二乘问题<span lang="EN-US" style="COLOR: black; FONT-FAMILY: "Times New Roman"; FONT-SIZE: 12pt; mso-bidi-font-size: 16.0pt; mso-fareast-font-family: 楷体_GB2312; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">Ax<span lang="EN-US" style="COLOR: black; FONT-FAMILY: "Times New Roman"; FONT-SIZE: 12pt; mso-bidi-font-size: 16.0pt; mso-fareast-font-family: 楷体_GB2312; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">=b<span style="COLOR: black; FONT-FAMILY: 楷体_GB2312; FONT-SIZE: 12pt; mso-bidi-font-size: 16.0pt; mso-font-kerning: 1.0pt; mso-hansi-font-family: 宋体; mso-bidi-font-family: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">的具体例子<shape id="_x0000_i1026" style="HEIGHT: 18pt; WIDTH: 90pt;">
<imagedata></imagedata></shape>且列满秩，利用如上三个函数得出最小二乘问题的解。<shape id="_x0000_i1025" style="HEIGHT: 23.25pt; WIDTH: 131.25pt;"><imagedata></imagedata></shape>，因此我们可以通过QR分解简化最小二乘问题。实验要求：实验包含三个程序1、            householder变换   =house(x)2、            QR分解            =qrfenjie(A) （此文件名不能建为qr）3、            求出最小二乘问题   y=leastsquare (A,b)<span style="COLOR: black; FONT-FAMILY: 楷体_GB2312; FONT-SIZE: 12pt; mso-bidi-font-size: 16.0pt; mso-font-kerning: 1.0pt; mso-hansi-font-family: 宋体; mso-bidi-font-family: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">其中第二个函数要调用第一个函数，第三个函数调用第二个函数。以一个最小二乘问题<span lang="EN-US" style="COLOR: black; FONT-FAMILY: "Times New Roman"; FONT-SIZE: 12pt; mso-bidi-font-size: 16.0pt; mso-fareast-font-family: 楷体_GB2312; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">Ax<span lang="EN-US" style="COLOR: black; FONT-FAMILY: "Times New Roman"; FONT-SIZE: 12pt; mso-bidi-font-size: 16.0pt; mso-fareast-font-family: 楷体_GB2312; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">=b<span style="COLOR: black; FONT-FAMILY: 楷体_GB2312; FONT-SIZE: 12pt; mso-bidi-font-size: 16.0pt; mso-font-kerning: 1.0pt; mso-hansi-font-family: 宋体; mso-bidi-font-family: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">的具体例子<shape id="_x0000_i1026" style="HEIGHT: 18pt; WIDTH: 90pt;">
<imagedata></imagedata></shape>且列满秩，利用如上三个函数得出最小二乘问题的解。

bingyuxiao 发表于 2006-12-1 05:44:24

hao  xiexiea

hkw2004 发表于 2006-12-2 04:40:10

我也想要啊

btreemain 发表于 2006-12-4 00:02:24

[下载]

看看有嘛,提供俺网址

三脚猫 发表于 2006-12-4 21:43:12

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yea 好人

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