OPEN CASCADE Multiple Variable Function eryar@163.com Abstract. Multiple variable function with gradient and Hessian matrix is very very import in OPEN CASCADE optimization algorithms. In order to understand these optimization algorithm better, let’s…

Lua支持面向对象,操作符为冒号‘:’.o:foo(x) <==> o.foo(o, x). Lua程序可以调用C语言或者Lua实现的函数.Lua基础库中的所有函数都是用C实现的.但这些细节对于lua程序员是透明的.调用一个用C实现的函数,和调用一个用Lua实现的函数,二者没有任何区别. 函数的参数跟局部变量一样,用传入的实参来初始化,多余的实参被丢弃,多余的形参初始化为nil. count= function incCount(n) n=n count=count+n end incCoun…

Introduction Surprisingly, a topic of named function expressions doesn't seem to be covered well enough on the web. This is probably why there are so many misconceptions floating around. In this article, I'll try to summarize both - theoretical and p…

Model Representation To establish notation for future use, we’ll use x(i) to denote the “input” variables (living area in this example), also called input features, and y(i) to denote the “output” or target variable that we are trying to predict (pri…

Cocos2d-x 3.5的lua项目生成后,变成了MVC模式,并且,加入了一个全局变量的检测功能.也就是说,你不小心用了全局变量,他会提示你出错! 比如 local temp = 1 temp = 10 print(temp) 你写成了 local temp = 1 tepm = 10 –这里写错了 print(temp) 然后,print结果就会不同,同时你还会创建一个 全局的 tepm 永远不会被释放.这种问题,在lua中很容易遇到(虽然现在有代码提示 还是不太容易出现,但是谁说的准呢!)…

Introduction What is machine learning? Tom Mitchell provides a more modern definition: "A computer program is said to learn from experience E with respect to some class of tasks T and performance measure P, if its performance at tasks in T, as measur…

Apply Newton Method to Find Extrema in OPEN CASCADE eryar@163.com Abstract. In calculus, Newton’s method is used for finding the roots of a function. In optimization, Newton’s method is applied to find the roots of the derivative. OPEN CASCADE implem…

  ~~教你向老鸟一样敲代码~~. 1. 将脚本放在页面的底部 ... <script src="./jquery.min.js"></script> <script src="./index.js"></script> </body> </html> 2. 变量声明合并 将多条var语句合并为一条语句,我建议将未赋值的变量放在最后面. 并且为了代码的美观,还可以将等号对齐. //糟糕 var…

CodeAtlas is a plugin of SublimeText, which allows one to explore the call graph conveniently. The plugin uses the code analysis tool Understand (https://scitools.com) to perform symbol/reference query task. Following (but not limited) languagues are…

本文知识点:     1潜在畸形页面使用htmlTreeParse函数 2startElement的用法 3闭包 4handler函数的命令和函数体主要写法 5节点的丢弃,取出,取出标签名称.属性.属性值.内容 6修改树中节点的属性.节点计数.存储节点 7匿名函数写法 8xmlHashTree函数和xmlRoot函数和trun参数(此条存疑) 9编码 10try和trycatch,中断 11xinclude   原书中虽然主要是关于HTML的,但是我想把重心放在2.4解析一节的内容,进行扩充和增…