随笔分类 -  Real World Virtualisation

该文被密码保护。
posted @ 2015-06-10 13:14 quanben 阅读(7) 评论(0) 推荐(0)
摘要:全本目前认为的最重要的十位哲学家及简评。 阅读全文
posted @ 2014-07-25 12:30 quanben 阅读(611) 评论(0) 推荐(0)
摘要:核心课程简表一上:综合数学(连续部分A(数学分析))[1001]、物理(经典物理)[2001]、程序设计与编译一A(C/Basic)[3001]、哲学与系统科学[1000]一下:综合数学(离散部分A(离散数学、线性代数等))[1002]、物理(电子:电动力学)[2002]、程序设计与编译一B(C#、Python等、程序语言分析)[3002]、算法与数据结构一A(算法导论和基本算法)[3011]二上:综合数学(连续部分B(高等数学分析、复分析、统计等))[1003]、物理(电子:电子工程(电路和射频等))[2003]、物理(现代物理及其方法)[2004]、程序设计与编译二A(编译原理、编译工具使 阅读全文
posted @ 2013-04-07 11:33 quanben 阅读(242) 评论(0) 推荐(0)
摘要:女友学物理治疗(Physio Thearpy),说起过她同学的一个iPad上的软件能够帮助学习(很有可能是那个3D4Medical)。最近比较关心一些医用解剖相关的软件。很显然这类软件对前端的表现能力要求很高,而经过一番简单调查发现这类软件的佼佼者的确都相当牛逼。不得不承认在医用成像之类的领域,苹果还是比较普遍受欢迎和广泛使用的,缘于它对图形图像的专注。记得好几年前,从前的邻居一位在美国做心脏外科的朋友会来探亲席间和姑父聊起各自用什么电脑(他俩是故交,而经常喜欢相互较劲比较些什么,挺有意思),那位外科大夫说,我们医院里用的全是G4的(那时国内听见过这个处理器的肯定是少数),我姑父说,我们用的是 阅读全文
posted @ 2012-10-08 16:39 quanben 阅读(295) 评论(0) 推荐(0)
摘要:IT学习无止境。以下整理一下计划学习和研究的东西。语言学习,重点关注C#(不能说掌握得差不多了,但继续作为主力编程工具需要不断提高)和C++11的进展,补一些boost的课(有条件的话看boost在新C++条件下如何演进)和C++遗忘的东西,回顾设计模式在这两个语言中的应用。留半个眼睛给Functional Programming和并发编程。有空粗略思考一些语言设计、对象模型、泛型和元编程、编译实现的问题。最近我发现越发对C++这门语言不感冒了。个人感觉,除了一些计算密集性能要求和架构要求有些紧张的场景,C++不是一个好的选择。对于前端界面应用,越来越没有C++什么事,对于大型的复杂的前端应用 阅读全文
posted @ 2012-09-24 15:16 quanben 阅读(195) 评论(0) 推荐(0)
摘要:最近的一个项目中用到一些数学,尤其是空间几何,忽然就觉得这些基本上高中程度的数学竟有点淡忘,用起来捉襟见肘,至少生涩。我这人喜欢把责任推到客观,于是再推一把,也像是一种反思。感觉中学的时候学了那么多几何,平面的立体的,虽然当时学得也饶有兴致(当然被逼无奈的成分也是有的),却也为了考试担惊受怕睡不着觉,而在真到用时竟如此不堪。而更多同学是被迫学的,后来如若也不怎么用,想想那倒也就算了。比方说一个极简单的用途,要用多边形(三角形)画一个正三棱锥,用尽可能快的方法把顶点的坐标和相应的围绕三角形生成出来,然后变成代码。居然在纸上画了许久没有出一个快速方案。我当然知道只要坚持计算下去总能算出来,但这只是 阅读全文
posted @ 2012-02-16 06:45 quanben 阅读(163) 评论(0) 推荐(0)
摘要:Can Computers Think? The History and Status of the Debate - Map 1 of 7问题10Issue Area:Can computers reason scientifically?问题域: 计算机是不是具有科学理性?The link to the part of the map this discussion is about:http://www.macrovu.com/CCTWeb/CCT1/CCTMap1Reason.html1. Common start point by Alan Turing (omitted)(Disp 阅读全文
posted @ 2011-12-22 17:55 quanben 阅读(286) 评论(0) 推荐(0)
摘要:Can Computers Think? The History and Status of the Debate - Map 1 of 7问题9Issue Area: Can computers be creative?问题域: 计算机会不会有创造力?The link to the part of the map this discussion is about: http://www.macrovu.com/CCTWeb/CCT1/CCTMap1BeCreative.html1. Common start point by Alan Turing (omitted)97. (Disputi 阅读全文
posted @ 2011-12-03 21:42 quanben 阅读(344) 评论(0) 推荐(0)
摘要:Can Computers Think? The History and Status of the Debate - Map 1 of 7问题8Issue Area: Are computers inherently dissabled?问题域: 计算机是否天生残疾?The link to the part of the map this discussion is about:http://www.macrovu.com/CCTWeb/CCT1/CCTMap1Disabled.html(Pretty much Turing's speaking to himself, maybe 阅读全文
posted @ 2011-11-02 19:41 quanben 阅读(249) 评论(0) 推荐(0)
摘要:Can Computers Think? The History and Status of the Debate - Map 1 of 7问题7Issue Area: Can computers draw analogies?问题域: 计算机能否做类比?The link to the part of the map this discussion is about:http://www.macrovu.com/CCTWeb/CCT1/CCTMap1Analogies.html1. Alan Turing, 1950, Yes, machines can (or will be able to 阅读全文
posted @ 2011-10-29 10:52 quanben 阅读(286) 评论(0) 推荐(0)
摘要:Can Computers Think? The History and Status of the Debate - Map 1 of 7问题6Issue Area: Is the brain a computer?问题域: 人脑是计算机吗?The link to the part of the map this discussion is about: http://www.macrovu.com/CCTWeb/CCT1/CCTMap1Brain.html1. Alan Turing, 1950, Yes, machines can (or will be able to) think. 阅读全文
posted @ 2011-10-28 21:19 quanben 阅读(317) 评论(0) 推荐(0)
摘要:Can Computers Think? The History and Status of the Debate - Map 1 of 7问题3Issue Area: Should we pretend that computers will never be able to think?问题域: 我们能一直对计算机的思考能力无动于衷吗?The link to the part of the map this discussion is about: http://www.macrovu.com/CCTWeb/CCT1/CCTMap1Pretend.html1. Alan Turing, 1 阅读全文
posted @ 2011-10-26 17:20 quanben 阅读(242) 评论(0) 推荐(0)
摘要:Can Computers Think? The History and Status of the Debate - Map 1 of 7Issue Area: Can computers have emotions?问题域: 计算机会有感情吗?The link to the part of the map this discussion is about: http://www.macrovu.com/CCTWeb/CCT1/CCTMap1Emotions.html1. Alan Turing, 1950, Yes, machines can (or will be able to) th 阅读全文
posted @ 2011-10-25 18:54 quanben 阅读(471) 评论(0) 推荐(0)
摘要:== Foreword by the translator ==It's an extraordinarily wonderful collection of charts that demonstrate the history and the current status of the discussion on whether computers (particularly the digital algorithmic machines we have been using today, which is I guess the only computing structure 阅读全文
posted @ 2011-10-23 20:28 quanben 阅读(377) 评论(0) 推荐(0)
摘要:Steve Jobs passed away just a few hours ago, and this is really a saddening news. One thought that comes to my mind is the consequence of this might be as much as an non-neglibgle factor that would worsen the situation of IT industry and even cast a shadow to the already gloomy global economy.I pers 阅读全文
posted @ 2011-10-06 18:38 quanben 阅读(194) 评论(0) 推荐(0)
摘要:Last night I had a dream, from which I can make a sketch of a game that is worth a good plan and design.Interestingly, even in the dream itself, as I was kind of going through the process on which the game would be based, I was already aware that it could be made a game from and made the decision to 阅读全文
posted @ 2011-06-11 19:37 quanben 阅读(197) 评论(0) 推荐(0)
摘要:以下是最近热议的新开源的Quake III源码中的一段tricky code,我稍作修改后如下:float CarmackInvSqrt(float x, unsigned long magicNumber){ float xhalf = 0.5f*x; int i = *(int*)&x; // get bits for floating VALUE i = magicNumber - (i>>1); // gives initial guess y0 x = *(float*)&i; // convert bits BA... 阅读全文
posted @ 2010-10-08 12:44 quanben 阅读(220) 评论(0) 推荐(0)
摘要:问题原址:http://topic.csdn.net/u/20080309/16/64b1e2e5-44af-4307-919c-45ead95e69c6.html?seed=1048831947&r=60114068#r_60114068根据原题,这个是顶点着色中常见的问题。1楼Jiana关于这个说的很明确:“法线不是一般概念的真正向量”。这句话的本意是对的,就是平面(或切平面)的法线不能简单的通过仿射变换矩阵直接得到变换后空间的法线,但并不是像从字面上理解,法线(法向量)就不是向量了。其次链接中讨论了法向量方向的确定,经过下面论证可以发现,还是有必要进行一番工作的。长话短说,以下就 阅读全文
posted @ 2009-09-27 23:54 quanben 阅读(390) 评论(0) 推荐(0)
摘要:This collision detection module is straightforward in thinking like most of my works, but I take pleasure of it, and hope that I will have time to refine and expand it and apply it to some interesting projects.The home page of the project: http://code.google.com/p/chaincd/ I also paste some infor... 阅读全文
posted @ 2008-06-27 22:03 quanben 阅读(174) 评论(0) 推荐(0)
摘要:在图形学坐标变换中,绕轴旋转是非常重要和常见的,例如在生成Camera和World的变换关系时广泛使用。以前曾得到过这个变换公式,但已经忘了是如何导出的,甚或是直接抄来的。现在索性重新推导一遍。设轴的矢量为[x, y, z]为构成右手系A系,需要补充两个正交向量:[e, f, g][u, v, w]根据右手系,有以下关系:u = y*g-z*fv = z*e-x*gw = x*f-y*ee = v*z-w*yf = w*x-u*zg = u*y-v*xx = f*w-g*vy = g*u-e*wz = e*v-f*u由A系到原坐标系的坐标变换矩阵是:A = [e, u, x; f, v, y; 阅读全文
posted @ 2007-07-24 09:53 quanben 阅读(387) 评论(0) 推荐(0)