基于哈夫曼编码的文件压缩

光线跟踪算法小demo实现了光线跟踪算法，功能简单，便于理解，效果一般有学习借鉴的意义，实用性一般希望对别人有帮助代码也可能略有小错，见谅啊！！！！！

数值计算算法：方法错误的定位写帕斯卡尔要找到一个解决方案，以F（X）=0给出的连续函数   f。关于区间[P0，P1]，其中f（P0）和f（p1）为必须   相反的迹象：   输入：端点P0，P1;公差TOL;            迭代N 0的最大数目。   输出：近似解p或            该算法失败的消息。

MT19937的javascript:Real number version genrand（）为每个调用生成一个伪随机实数（double），它均匀分布在[0,1]间隔上。sgenrand（seed）将初始值设置为624个字的工作区。在genrand（）之前，sgenrand（seed）必须是

采用基于RSSI的ZigBee定位技术。 采用基于RSSI的ZigBee定位技术，实现两个基站对目标的定位及校准功能

有限元计算程序，供软件工程，力学专业的老师和学生参考-Finite element program for software engineering, mechanical professional teachers and students for reference

This a simple demo of how to evaluate mathematical expressions in text format, including provision for variables and functions. The code consists of three simple classes: 1) Calc - which does the main calculations, 2) Stack - which is used to push and pop intermediate operators and numbers and 3) Symbol Table. The symbol table is a collection of calc symbols, a type structure consisting of various elements, including the expression name, function name, and the final value of the expression The evaluation procedure is done in three steps: 1) simplify the expression by removing all the elements within () and storing them in subexpressions within the symbol table. 2) Each of these sub expressions are then converted to RPN format (Reverse polar notation) and evaluated 3) Finally, the main expression is converted to RPN and evaluated-This is a simple demo of how to evaluate mathematical expressions in text format, including provision for variables and functi

这个是c++读取excel 的源代码，可以让大家能简单地使用c++读取excel

C++代码：opencv图像格式Mat，iplImage与halcon图像格式Hobeject的互相转换代码。包括：IplImage转Hobject，Mat转Hobject，Hobject转Mat，Hobject转IplImage。适合学习opencv与halcon图像处理的人员使用，希望对大家有帮助。

利用matlab计算光子晶体的各种特征参量。 一共五个希望对大家有所帮助。-Matlab calculated using the various features of photonic crystals parameters. A total of five people want to help.

C语言实现复数型矩阵求逆 -C language plural-matrix inversion C language plural-matrix inversion