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分享一个外国人编写的FDTD程序,可以用来计算微带线和微带贴片天线,程序中采用的是均匀网格划分,但也可以在容易地在它基础上改写成非均匀网格.其边界条件与Sheen的程序不同,这里采用二阶技术.(Prepared to share a foreigner FDTD procedures, can be used to calculate the microstrip lines and microstrip patch antenna, the procedure used is uniform mesh, but can also easily rewrite it into the basis of non-uniform grid. its boundary conditions with different processes and Sheen, where second-order technology.)

abaqus二次开发UMAT在损伤方面的应用(ABAQUS two development of UMAT in the application of damage)

计算流体力学重要算法 simple算法计算顶盖驱动流动。(An example for using SIMPLE algorithm to computing lid driven flow in CFD)

说明：  可以计算两个小于500位整数的乘法，多项式求m次阶的系数和,大数阶乘。(Can compute the two less than 500-bit integer multiplication,M second-order polynomial coefficients of demand and, factorial of large numbers .)

NACA 4位数 翼型数据的生成 Matlab程序(NACA 4 digit airfoil)

香农编码的C语言实现，VC++环境~~~~~~~~~~~~~~~~~~~~~~~~~(Shannon C-language coding, VC++ environment ~~~~~~~~~~~~~~~~~~~~~~~)

说明：  用FORTRAN语言实现二维欧拉方程的求解，采用二阶MUSCL迎风格式()

应用FORTRAN语言编写的通过方向应力张量与应力余弦张量求解主应力矩阵(Application FORTRAN language through direction cosine stress tensor and the stress tensor matrix solving the principal stress)

一种利用梯度下降的加速求解低秩矩阵和稀疏矩阵的方法(accelerated proximal gradient method to find low-rank matrix and sparse matrix)

小波包分析提取振动信号中的特征频率，微分方程组数值解方法，有循环检测，周期性检测。( Wavelet packet analysis to extract vibration signal characteristic frequency, Numerical solution of differential equations method, There are cycle detection, periodic testing.)