xianxinghuigui

利用五点差分格式和Jacobi迭代法，求解精确解和数值解的误差，判断阶数是否正确(Five-point difference scheme and Jacobi iteration method are used to solve the error between exact solution and numerical solution and to judge whether the order is correct or not.)

自信车轮压力分析 python 源代码 有限元分析(Wheel of bike ，python Finite Element code)

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

一个挺好用的源程序打包器，北京联高软件公司的，fortran代码转换成chm文档。(A useful tool for converting fortran source files to chm document.)

船舶荷载计算程序，可用于码头设计中船舶荷载的计算。(Ship load calculation procedures, can be used for ship loading terminal design calculations.)

说明：  基于欧拉距离的KNN分类器，可自行调节map和预测点的位置。运行时首先显示分布散点图，之后输出预测值(Here is a KNN classifier based on Euler distance with self-adjusting map and prediction point positions. The distribution scatter will plot displayed map at first, then show the predicted value.)

解线性代数方程组的顺序高斯消去法。使用c++标准库的vector实现。(Solution of linear algebraic equations order Gaussian elimination. Use c++ standard library vector implementation.)

关于复数矩阵求导的一本经典书籍“Complex-valued_matrix_derivatives”的电子版(About the electronic version of the complex matrix derivation of a classic book " Complex-valued_matrix_derivatives" )

说明：  复合材料单向板损伤模拟的Umat子程序，配合ABAQUS进行损伤模拟。(A umat subroutine for the simulation of composite meterials damage.)

Evesen开发的scalarmodel，耦合了集合卡尔曼滤波算法和集合卡尔曼平滑算法(Scalarmodel coupled with Ensembled Kalman Filter and Ensembled Kalman Smoother)