给出计算常微分方程（组）的各种算法的使用示例。

98年全国大学生数学建模竞赛B题"水灾巡视问题"模拟退火算法。-98 National Mathematical Contest in Modeling B and that the "flood inspections" simulated annealing.

UNIX系统之下的快速傅立叶变换包-UNIX system fast Fourier transforms the package

! 平面杆系结构静力分析程序 ! 先处理法源程序 ! ! 主要功能和特点： ! 可调数组 ! 输入单元结点编号和结点位移编码； ! 先处理法形成总体刚度阵和结构综合结点荷载 ! 存储总刚上三角元素； ! GAUSS消元法解线性代数方程组； ! 计算结点位移和单元杆端力-! Plane truss structure static analysis program! First treatment source!! Main functions and characteristics:! Adjustable array! Input module node number and node displacement coding ! First approach to form and structure of the overall stiffness matrix Consolidated Statement point load! storage total just on the triangular element ! GAUSS elimination method solving linear algebraic equations ! computing node displacement and force unit rod end

SparseLib＋＋是可用于跨计算平台的有效的稀疏矩阵计算的C＋＋类库，软件包包括处理不同稀疏存储格式的矩阵类。包括两篇技术文档和类库的源代码（版本为1.6）-SparseLib++ can be used for cross-platform calculation of the effective sparse matrix calculation of the C++ class library , the package includes different store formats sparse matrices. Including two technical documentation and class library source code (version 1.6)

DFT及抽样定理研究；对正弦信号的抽样方法-DFT and sampling theorem; Right sinusoidal signal sampling method

a 2-d FDTD program using PML

图像插值程序，可以对图像任意缩放。例如：可以将大小为256 （高）×256（宽）的图像改变为大小为360×300的图像。-image interpolation procedures, the images can be arbitrary scaling. For example : can be the size of 256 (H) x 256 (W) to change the image size of 360 x 300 images.

Microsoft CryptoAPI  可以自己看看                   ！

这是一个用c语言实现的蚁群算法，希望对研究蚁群算法的人有帮助。-C This is a language with the ant colony algorithm to achieve the hope that the study of ant colony algorithm to help the people.

双音多频：dual-tone multifrequency双音多频 DTMF（Dual Tone Multi Frequency），双音多频，由高频群和低频群组成，高低频群各包含4个频率。一个高频信号和一个低频信号叠加组成一个组合信号.