https://blog.youkuaiyun.com/StephenFengzzh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/StephenFengz/article/details/62049044https://blog.youkuaiyun.com/StephenFengz/article/details/62049044StephenFengzTue, 14 Mar 2017 19:06:43 +0800 sqlplus 请输入用户名：sys 输入口令：sys as sysdba //注意：在口令这里输入的密码后面必须要跟上 as sysdba 才可以。     (连接到数据库) SQL> alter user system account unlock; 对syste]]>https://blog.youkuaiyun.com/StephenFengz/article/details/54426024https://blog.youkuaiyun.com/StephenFengz/article/details/54426024StephenFengzSat, 14 Jan 2017 12:17:04 +0800https://blog.youkuaiyun.com/StephenFengz/article/details/53454785https://blog.youkuaiyun.com/StephenFengz/article/details/53454785StephenFengzSun, 04 Dec 2016 16:33:54 +0800https://blog.youkuaiyun.com/StephenFengz/article/details/52997387https://blog.youkuaiyun.com/StephenFengz/article/details/52997387StephenFengzTue, 01 Nov 2016 17:08:46 +0800https://blog.youkuaiyun.com/StephenFengz/article/details/52752624https://blog.youkuaiyun.com/StephenFengz/article/details/52752624StephenFengzFri, 07 Oct 2016 23:10:15 +0800https://blog.youkuaiyun.com/StephenFengz/article/details/52446611https://blog.youkuaiyun.com/StephenFengz/article/details/52446611StephenFengzTue, 06 Sep 2016 08:11:09 +0800> sum(a(:) == k); 2、求矩阵A中符合某条件的所有元素索引： >> find(a == k); 3、终止程序执行： >> Ctrl + C 4、使新图像画在旧图像上面而不是覆盖旧图像]]>https://blog.youkuaiyun.com/StephenFengz/article/details/52433190https://blog.youkuaiyun.com/StephenFengz/article/details/52433190StephenFengzSun, 04 Sep 2016 16:45:10 +0800 estimateGaussian.m: mu = ( sum(X, 1) )'./m; %(n*1) temp = bsxfun(@minus, X, mu'); %(m*n) sigma2 = ( sum( (temp.^2), 1) )'./m; %(n*1) selectThreshold.m: predictions =]]>https://blog.youkuaiyun.com/StephenFengz/article/details/52416897https://blog.youkuaiyun.com/StephenFengz/article/details/52416897StephenFengzFri, 02 Sep 2016 21:01:38 +0800https://blog.youkuaiyun.com/StephenFengz/article/details/52416852https://blog.youkuaiyun.com/StephenFengz/article/details/52416852StephenFengzFri, 02 Sep 2016 20:58:48 +0800https://blog.youkuaiyun.com/StephenFengz/article/details/52416804https://blog.youkuaiyun.com/StephenFengz/article/details/52416804StephenFengzFri, 02 Sep 2016 20:50:41 +0800https://blog.youkuaiyun.com/StephenFengz/article/details/52416739https://blog.youkuaiyun.com/StephenFengz/article/details/52416739StephenFengzFri, 02 Sep 2016 20:42:59 +0800https://blog.youkuaiyun.com/StephenFengz/article/details/52382384https://blog.youkuaiyun.com/StephenFengz/article/details/52382384StephenFengzWed, 31 Aug 2016 10:25:32 +0800https://blog.youkuaiyun.com/StephenFengz/article/details/52292495https://blog.youkuaiyun.com/StephenFengz/article/details/52292495StephenFengzTue, 23 Aug 2016 16:56:57 +0800https://blog.youkuaiyun.com/StephenFengz/article/details/52253142https://blog.youkuaiyun.com/StephenFengz/article/details/52253142StephenFengzFri, 19 Aug 2016 17:49:03 +0800https://blog.youkuaiyun.com/StephenFengz/article/details/52080269https://blog.youkuaiyun.com/StephenFengz/article/details/52080269StephenFengzSun, 31 Jul 2016 19:35:55 +08002.0版本 ——>使用]]>https://blog.youkuaiyun.com/StephenFengz/article/details/52066543https://blog.youkuaiyun.com/StephenFengz/article/details/52066543StephenFengzFri, 29 Jul 2016 16:52:30 +0800https://blog.youkuaiyun.com/StephenFengz/article/details/52057110https://blog.youkuaiyun.com/StephenFengz/article/details/52057110StephenFengzThu, 28 Jul 2016 17:14:37 +0800https://blog.youkuaiyun.com/StephenFengz/article/details/52004314https://blog.youkuaiyun.com/StephenFengz/article/details/52004314StephenFengzSat, 23 Jul 2016 14:51:59 +0800https://blog.youkuaiyun.com/StephenFengz/article/details/51993642https://blog.youkuaiyun.com/StephenFengz/article/details/51993642StephenFengzFri, 22 Jul 2016 12:19:29 +0800https://blog.youkuaiyun.com/StephenFengz/article/details/51984697https://blog.youkuaiyun.com/StephenFengz/article/details/51984697StephenFengzThu, 21 Jul 2016 17:08:59 +0800