LIFE.QIWEN.NAME

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Notes, for Tech, for Academic: Online LaTeX Editor ShareLaTeX

http://blog.qiwen.name/2014/11/online-latex-editor-sharelatex.html

Notes, for Tech, for Academic. Life is like a box of chocolates - you never know what you're going to get. Forrest Gump in "Forrest Gump" (1994). Online LaTeX Editor ShareLaTeX. 一直以来是在Office电脑（Windows 7）编辑Latex，所以LATEX Suite在用CTEX。但是有的时候在宿舍会换用Mac air，面临选择是重新安装Editor，还是延续之前的做法（VPN Remote Desktop到Office的电脑）。但是网速的原因，Remote的做法导致使用不是很顺畅。 近日发现了一个Online LaTeX Editor ShareLaTeX. 12290;尝试了把tex file upload，的确可以轻松编译，编译速度，跳转各方面也都不错，而且可以和Dropbox配合做Sync. 在我推广下，实验室很多同学都使用了/过这个服务。足以说明它的好了 :). 订阅： 帖子评论 ( Atom ).

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Notes, for Tech, for Academic: 2012/04

http://blog.qiwen.name/2012_04_01_archive.html

Notes, for Tech, for Academic. Life is like a box of chocolates - you never know what you're going to get. Forrest Gump in "Forrest Gump" (1994). How to install Git on Mac X Lion 如何在Mac X Lion系统安装Git. 1 Download Git dmg file from Google Code http:/ code.google.com/p/. Currently, there's no specific version for X Lion, just download the latest version for snow leopard). 2 Click git- version number -intel-universal-snow-. Leopard.pkg to install GIT step by step. It works for my Mac OS X Lion 10.7.3.

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Notes, for Tech, for Academic: 2012/11

http://blog.qiwen.name/2012_11_01_archive.html

Notes, for Tech, for Academic. Life is like a box of chocolates - you never know what you're going to get. Forrest Gump in "Forrest Gump" (1994). 在Pajek里使用CC1计算Clustering Coefficient会给出两种计算结果。例如，对于包含4个节点的简单的网络：. Vertices 4 1 "1" 2 "2" 3 "3" 4 "4" *Arcs 1 2 1 3 2 1 2 3 2 4 3 2 3 1 4 2. 使用Pajek 2.05计算所得的结果为：. Watts-Strogatz Clustering Coefficient: 0.77777778 Network Clustering Coefficient (Transitivity): 0.60000000. Network Clustering Coefficient (Transitivity)是(3*闭合三点组数)/(所有三点组数)。 Matlab 2012b (Mac) 曲线拟合.

blog.qiwen.name

Notes, for Tech, for Academic: Accuracy Timing的问题

http://blog.qiwen.name/2014/03/accuracy-timing.html

Notes, for Tech, for Academic. Life is like a box of chocolates - you never know what you're going to get. Forrest Gump in "Forrest Gump" (1994). 因为做实验原因，需要获取Accuracy的Timing。查了下资料，找到两个比较精确的办法：. 的办法，并给出了Linux C/C code。 http:/ www.cnblogs.com/ralphjzhang/archive/2012/01/09/2317463.html. 2 另外一种是调用 clock gettime. 65292;使用 CLOCK MONOTONIC. 或者 CLOCK MONOTONIC RAW. 在Physical Host里面实验，上面两种办法的效果多很理想，多个Sampling的Standard Deviation值比较小。 订阅： 帖子评论 ( Atom ). Notes, for Life.

blog.qiwen.name

Notes, for Tech, for Academic: 2014/08

http://blog.qiwen.name/2014_08_01_archive.html

Notes, for Tech, for Academic. Life is like a box of chocolates - you never know what you're going to get. Forrest Gump in "Forrest Gump" (1994). XEN 44 Source Code安装以及嵌套虚拟化. 为了方便对XEN的修改调试，我们打算先在一个VM里面安装XEN，最后再部署到Pyhiscal Host去做测试。 第一次，选择了VMWare。创建虚拟机，安装XEN，很顺利。但是Reboot之后进入不了Dom0，直接卡在启动界面。尝试了多次（包括更好Host Ubuntu版本，VMware Workstation版本）以及各种网上找到的方案后，放弃。 第二次，尝试Virtualbox。直接用apt-get install xen-hypervisor-4.4-amd64，reboot，一切顺利。 Download code & Build & Install]. Set up linux bridging in Xen. Auto lo iface lo in...

blog.qiwen.name

Notes, for Tech, for Academic: 2012/06

http://blog.qiwen.name/2012_06_01_archive.html

Notes, for Tech, for Academic. Life is like a box of chocolates - you never know what you're going to get. Forrest Gump in "Forrest Gump" (1994). PDF Split and Merge. 这是一款跨平台的免费PDF编辑软件，可以处理PDF拆分、合并、旋转等基本操作。 处理速度非常快，我尝试对6个仅含1页内容的PDF做合并，瞬间完成。 Http:/ www.pdfsam.org/. HEAP CORRUPTION DETECTED: CRT detected that the application wrote to memory after end of heap buffer. HEAP CORRUPTION DETECTED: . CRT detected that the application wrote to memory after end of heap buffer. 订阅： 帖子 ( Atom ). Notes, for Life.

blog.qiwen.name

Notes, for Tech, for Academic: XEN 4.4 Source Code安装以及嵌套虚拟化

http://blog.qiwen.name/2014/08/xen-44-source-code.html

Notes, for Tech, for Academic. Life is like a box of chocolates - you never know what you're going to get. Forrest Gump in "Forrest Gump" (1994). XEN 44 Source Code安装以及嵌套虚拟化. 为了方便对XEN的修改调试，我们打算先在一个VM里面安装XEN，最后再部署到Pyhiscal Host去做测试。 第一次，选择了VMWare。创建虚拟机，安装XEN，很顺利。但是Reboot之后进入不了Dom0，直接卡在启动界面。尝试了多次（包括更好Host Ubuntu版本，VMware Workstation版本）以及各种网上找到的方案后，放弃。 第二次，尝试Virtualbox。直接用apt-get install xen-hypervisor-4.4-amd64，reboot，一切顺利。 Download code & Build & Install]. Set up linux bridging in Xen. Auto lo iface lo in...

blog.qiwen.name

Notes, for Tech, for Academic: 2012/12

http://blog.qiwen.name/2012_12_01_archive.html

Notes, for Tech, for Academic. Life is like a box of chocolates - you never know what you're going to get. Forrest Gump in "Forrest Gump" (1994). Fisher Yates算法是一个简单的洗牌算法，根据Ronald Fisher和Frank Yates来命名（ Wiki的介绍. Void ShuffleArray Fisher Yates(char* arr, int len) { int i = len, j; char temp; if ( i = 0 ) { return; } while ( - i ) { j = rand() % (i 1); temp = arr[i]; arr[i] = arr[j]; arr[j] = temp; } }. 下面看一下测试数据：对一个含有ABCDEFGHIJ的数组按照上面的算法洗牌，统计每个字母在1到10的位置出现的次数（ 来自 酷壳. 订阅： 帖子 ( Atom ). Notes, for Life.

blog.qiwen.name

Notes, for Tech, for Academic: 2012/10

http://blog.qiwen.name/2012_10_01_archive.html

Notes, for Tech, for Academic. Life is like a box of chocolates - you never know what you're going to get. Forrest Gump in "Forrest Gump" (1994). B Tree C Code, B 树C代码实现. 最近在看一些到B 树的一些问题，尝试自己写一个Insert, Delete, Update的功能。 但是迫于时间的压力，先是在网上找到一个版本，自己改动了几处下。 在Mac OS 10.8.2的XCode里面调试没问题。 第一个参数表示B 树的order，就是每个entry里面最多的point个数。 第二个参数datafile是可选的，表示initial状态的B 树数据。如果没有这个参数的话，可以在程序运行起来后，通过insert (i)命令来不断的插入新的数据。 40 70 10 30 5 35 33 34 39 38 20 37 15 90. 38 15 30 34 40 5 10 15 20 30 33 34 35 37 38 39 40 70 90.

blog.qiwen.name

Notes, for Tech, for Academic: 2014/01

http://blog.qiwen.name/2014_01_01_archive.html

Notes, for Tech, for Academic. Life is like a box of chocolates - you never know what you're going to get. Forrest Gump in "Forrest Gump" (1994). 用Latex不是很久，有的时候遇到问题，需要反覆搜索，不如用一个page记录下来吧. 65288;已经改用LyX，见文章最后Update），总体感觉不错的. 1 图表figure, subfigure. Vspace{0mm} includegraphics[width=3.5in]{fig/Operations.eps}. Subfigure[figure 1]{ includegraphics[width=0.148 textwidth, angle=270]{1.eps} label{fig:fig2-1}. Subfigure[figure 2]{ includegraphics[width=0.148 textwidth, angle=270]{2.eps} label{fig:fig2-2}. 今天同学给...