﻿<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>C++博客-socketref-随笔分类-numpy</title><link>http://www.cppblog.com/socketref/category/17643.html</link><description>gis,mouse,luolasi</description><language>zh-cn</language><lastBuildDate>Sat, 27 Aug 2011 22:37:40 GMT</lastBuildDate><pubDate>Sat, 27 Aug 2011 22:37:40 GMT</pubDate><ttl>60</ttl><item><title>计算矩阵的逆</title><link>http://www.cppblog.com/socketref/archive/2011/08/28/154530.html</link><dc:creator>放屁阿狗 </dc:creator><author>放屁阿狗 </author><pubDate>Sat, 27 Aug 2011 21:21:00 GMT</pubDate><guid>http://www.cppblog.com/socketref/archive/2011/08/28/154530.html</guid><wfw:comment>http://www.cppblog.com/socketref/comments/154530.html</wfw:comment><comments>http://www.cppblog.com/socketref/archive/2011/08/28/154530.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.cppblog.com/socketref/comments/commentRss/154530.html</wfw:commentRss><trackback:ping>http://www.cppblog.com/socketref/services/trackbacks/154530.html</trackback:ping><description><![CDATA[矩阵是个好玩的东西，在平面软件处理的时候，逆矩阵都用来转换鼠标位置到特定的坐标系,教科书是这么写的 &nbsp;M' x ( F x M) = M<br />numpy 就很简单了:&nbsp;<br /><br /><div>from numpy import linalg as LA<br />form numpy import *<br />m = mat('1 2 3;4 5 6;7 8 9')<br />mi = LA.inv(m)<br />print mi</div><img src ="http://www.cppblog.com/socketref/aggbug/154530.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.cppblog.com/socketref/" target="_blank">放屁阿狗 </a> 2011-08-28 05:21 <a href="http://www.cppblog.com/socketref/archive/2011/08/28/154530.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item></channel></rss>