FDTD algorithm.

复数据快速傅立叶变换算法-Minute Data Fast Fourier Transform algorithm

递归图算法Recurrence Plot，RP，以一种简单的图形显示除了其在表征系统动力学特征方面的优点，被证明是一新的非线性分析的有效工具。新近的研究表明，对RP做定量的分析（RQA）可以得到许多表征RP的特征量，例如递归率、确定率、比率、线段分布的香浓熵等。对这些特征量的进一步分析有可能提供一些未知动力学系统的有用信息。本代码是RQA的一种实现。

基于C语言的小波处理，包含有滤波、复原、融合等C语言源代码。-Wavelet-based C language processing, includes filtering, recovery, integration, such as C language source code.

基于GRID格式DEM的等值线追踪算法（已删除编译目录），可用于多种散点插值生成的格网，只需将格网数据写成GRID格式的文本即可．-GRID-based format of the contour DEM tracking algorithm (the compiler has been deleted directory), can be used for a variety of scattered point interpolation to generate a grid, simply written GRID Grid data can be formatted text.

一维线性回归，文件不大，里边有头文件和另外一个相关文件。-one-dimensional linear regression, not paper, along with header files and documents related to one another.

四色问题-four color problem

SMALL C 语言数学库 -SMALL C language math

埃斯特角 projeto mostra 科摩 usar um teclado matricial 3 x 4 com pic 没有 ccs，criação de ilustra um 菜单 de opções usando (开关箱) 段控制 de motores de 帕苏、 com 帕苏 completo、 微帕苏等

根据日期算星期，调试通过-count on the date weeks, through debugging

部分PKU上的源码，希望对大家有所帮助。其中包括所有提交代码，里面均有提示-PKU part on the source, and they hope to help everyone. Including all submitted code, which has prompted