CalcActivationCode

计算按频率抽取的基4快速傅里叶变换算法，与基2FFT相比，基4FFT的乘法量约减少25 。(Calculating frequency taken by fast Fourier transform algorithm base 4, compared with the base 2FFT the base 4FFT multiplication about 25 less.)

半参数回归模型在测绘领域中的应用，先利用多期数据构建半参数回归模型，然后再预报未来多期数据(Semiparametric regression model applied in the field of surveying and mapping, the first use of multi-phase data to construct semi-parametric regression model, and then predict the future multi-phase data)

利用Lax-wendroff两步差分格式求解一维激波管问题Fortran语言(Use a two-step Lax-wendroff Difference Scheme for Solving the one-dimensional shock tube problem Fortran language)

使用fluent udf编程，实现水滴在空气中的运动描述。(Use fluent udf programming, to achieve the movement of water droplet in the air.)

一维等离子体的plrc—fdtd算法程序(one-dimensional plasma plrc- fdtd Algorithm)

C++实现的数值分析算法包括： 二分法.cpp 复化辛卜生公式.cpp 改进欧拉法.cpp 高斯-赛德尔迭代法.cpp 拉格郎日插值多项式.c(C achieve the numerical analysis algorithms include : dichotomy. cpp Minute of Oracle Health formula. cpp Improved Euler method. cpp Gauss- Seidel iterative method. cpp Lagrange polynomial interpolation. c)

基于混沌理论进行数据预测的程序，欢欢迎需要的朋友参考下载，并提出修改意见 (, Please feel welcome the reference to a friend download data to predict the process based on chaos theory, and suggest modifications)

随机数的产生，枚举嵌套算法求解一元多次方程。按批量处理。(The generation of random Numbers, nested enumeration algorithm monadic equation according to the batch processing for many times)

PMV，的热舒适指标计算程序VB编码，可供参考(PMV, thermal comfort index calculation program VB code, for reference)

说明：  四级四阶龙格库塔格式，求解微分方程的好算法。(Four fourth-order Runge-Kutta format, a good algorithm for solving differential equations.)