排列与组合

快速傅立叶变换-Fast Fourier Transform

蒙特卡罗方法又称随机抽样技巧或统计试验方法。半个多世纪以来，由于科学技术的发展和电子计算机的发明 ，这种方法作为一种独立的方法被提出来，并首先在核武器的试验与研制中得到了应用。蒙特卡罗方法是一种计算方法，但与一般数值计算方法有很大区别。它是以概率统计理论为基础的一种方法。由于蒙特卡罗方法能够比较逼真地描述事物的特点及物理实验过程，解决一些数值方法难以解决的问题，因而该方法的应用领域日趋广泛。 -Monte Carlo method known as random or statistical skills test method. More than half a century, the development of science and technology and the invention of the electronic computer, this method as an independent method was raised and the first nuclear test and research has been applied. The Monte Carlo method is a calculated, but with the general numerical method a great difference. It was based on the theory of probability and statistics-based approach. As the Monte Carlo method can vividly describe things and the physical characteristics of the experimental process, numerical methods to solve some difficult problems, the result of the increasingly extensive application areas.

为什么这么简单的程序会让蚂蚁干这样复杂的事情？答案是：简单规则的涌现。事实上，每只蚂蚁并不是像我们想象的需要知道整个世界的信息，他们其实只关心很小范围内的眼前信息，而且根据这些局部信息利用几条简单的规则进行决策，这样，在蚁群这个集体里，复杂性的行为就会凸现出来。这就是人工生命、复杂性科学解释的规律！  

Huffman编码是常见的编码之一，它的一个重要应用即为实现文件的压缩。本程序实现了利用Huffman编码进行文件压缩与解压缩

用C++写的辛普生算法-C Simpson wrote Health Algorithm

Multiband_Kamath.m Description: Multiband spectral subtraction as proposed by Kamath 2002. Uses adjusts the subtraction coefficient with the frequency as well as the SNR. note that the first 0.25sec of your signal is used to model the noise. License: Shareware Related: sec, Signal, Model, Noise, Frequency, coefficient, subtraction, Spectral, proposed O/S: BSD, Linux, Solaris, Mac OS X

7. 求矢量夹角余弦 8. 求线段之间的夹角 9. 判断线段是否相交10.判断线段是否相交但不交在端点处 11.求线段所在直线的方程 12.求直线的斜率 13.求直线的倾斜角14.求点关于某直线的对称点15.判断两条直线是否相交及求直线交点16.判断线段是否相交，如果相交返回交点-7. For vector cosine angle 8. For the angle between the line 9. Line judge whether the intersection 10. Line judge whether the intersection but do not pay the endpoint Office 11. For the straight line segment where equation 12. For a linear slope 13. Seeking straight tilt angle 14. For a certain point on a linear symmetrical 15 points. to judge whether the intersection of two straight and for 16 straight intersection. Line judge whether the intersection, the intersection to intersection

It s a simple Parser That calculates mathematic operations.You give an input and it starts the calculation by showing you the parsing operation in real-time.

C语言实现雨滴模拟，一个完整的过程分解为好几个小部分，各自可以独立运行，方便初学者学习c语言实现较为复杂的数据结构。

本程序是基于能量检测的频谱感知算法，程序共包括四个文件，分别是主文件，噪声发生文件，阈值计算文件和结果输出文件，希望能对频谱感知研究的初学者能有所帮助，谢谢。