surghost

Summary--2--1108

摘要： 1. Passing two exams, as I am too busy, actually I only spend 2 days on each of them. One 21/40 and the ohter 23/30. Actually for lacking of experience I did rather bad in the first exam. I only write over the first 5 questions.2. Reading over the beauty of math. Rather inspiring.3. C++ with excel v 阅读全文

posted @ 2012-11-08 20:21 surghost 阅读(128) 评论(0) 推荐(0) 编辑

Summary--1--1011

摘要： Almost 5 weeks, it is hard to say I've got a lot of things here, maybe I got lost myself in these fucking mathematics prooving procedure.I've read a lot of books. Cfa. which consist of the major part, Django web development C++ primer (on the way) SAS little book(on the way) I'm not sure 阅读全文

posted @ 2012-10-11 15:37 surghost 阅读(170) 评论(0) 推荐(0) 编辑

C++ in financial models_01_binomial tree

摘要： Binominal tree: Data structure: 1. Vector embed in vector. 2. Construct the data structure directly from the last column. xi=u*u*v[0] ... 阅读全文

posted @ 2012-09-23 17:09 surghost 阅读(184) 评论(0) 推荐(0) 编辑

review of c++

摘要： 1.　const rational operator*(const rational& lhs,const rational& rhs) { return rational(lhs.numerator() * rhs.numerator(), lhs.denominator() * rhs.denominator()); } rational onefourth（1,4）； rational result; result = onefourth * 2; // 工作良好 result = 2 * onefourth; // 万岁，它也工作了！We do not need... 阅读全文

posted @ 2012-09-21 21:26 surghost 阅读(199) 评论(0) 推荐(0) 编辑

开发日记二--在页面的js和后台数据中纠结

摘要：好久没写了，但是自己最近确实在整。现在的状况：1. 页面已经有一个很棒的js了，但是问题在于我在给这个东东传值的时候的这个问题一定搞不定，纠结了我两天了。2. 后台基本没问题了，逻辑这些都写完了。问题：1.直接用ajax方式取出目标数据，估计设置同步后可以搞定，但是先不用了。2.一直在变量作用域上出问题是因为对js和标签的执行先后没搞明白。3.现在使用gson取数据还得给他多套个类，直接用内部类的方法不行，它不解析。阅读全文

posted @ 2012-05-11 17:05 surghost 阅读(134) 评论(0) 推荐(0) 编辑

求高人解决srand48的问题

摘要：模拟一个排队系统，自己做得不太好，研究别人写的程序这个srand48又通不过，貌似是因为我是windows系统？我确实太菜了，不过这因为如此我才要来博客园啊，求高手指点，我正在快速提升技术中。阅读全文

posted @ 2011-12-13 11:56 surghost 阅读(272) 评论(0) 推荐(0) 编辑